* fold-const.c (operand_equal_p): Consider two calls to "const"
functions with identical non-volatile arguments to be equal.
Consider the FUNCTION_DECL for the "__builtin_foo" form of a
built-in function to be equal to the "foo" form.
Co-Authored-By: Jeff Law <law@redhat.com>
From-SVN: r68011
PR middle-end/168
* fold-const.c (tree_expr_nonnegative_p): Handle addition
and multiplication of zero extensions, floating point division,
and integer<->fp, fp<->fp and zero extension conversions.
The built-in ceil and floor functions preserve signedness.
* gcc.dg/20030612-1.c: New test case.
From-SVN: r67850
* fold-const.c (tree_expr_nonnegative_p): Add support for
floating point constants, addition and multiplication.
* gcc.dg/builtins-21.c: New test case.
From-SVN: r67828
* builtins.c (fold_builtin): Optimize cos(-x) as cos(x).
* fold-const.c (fold <NEGATE_EXPR>): Convert -f(x) into f(-x)
when x is easily negated and f is sin, tan or atan.
(fold <MULT_EXPR>): Optimize tan(x)*cos(x) and cos(x)*tan(x) as
sin(x) with flag_unsafe_math_optimizations.
(fold <RDIV_EXPR>): With flag_unsafe_math_optimizations fold
sin(x)/cos(x) as tan(x) and cos(x)/sin(x) as 1.0/tan(x).
* gcc.dg/builtins-20.c: New test case.
From-SVN: r67701
* fold-const.c (fold <EQ_EXPR>): Don't fold x == x only if x
is a floating point type *and* we currently honor NaNs.
(fold <NE_EXPR>): Likewise.
From-SVN: r67700
* fold-const.c (fold <ABS_EXPR>): Re-fold the result of folding
fabs(-x) into fabs(x). Use tree_expr_nonnegative_p to determine
when the ABS_EXPR (fabs or abs) is not required.
(tree_expr_nonnegative_p): Move the logic that sqrt and exp are
always nonnegative from fold to here. Additionally, cabs and fabs
are always non-negative, and pow and atan are non-negative if
their first argument is non-negative.
* builtins.c (fold_builtin_cabs): New function to fold cabs{,f,l}.
Evaluate cabs of a constant at compile-time. Convert cabs of a
non-complex argument into fabs. Convert cabs(z) into
sqrt(z.r*z.r + z.i*z.i) at the tree-level with -ffast-math or
-funsafe-math-optimizations or -ffast-math.
(fold_builtin): Convert BUILT_IN_FABS{,F,L} into an ABS_EXPR.
Fold BUILT_IN_CABS{,F,L} using fold_builtin_cabs.
* gcc.dg/builtins-2.c: Add some more tests.
* gcc.dg/builtins-18.c: New test case.
* gcc.dg/builtins-19.c: New test case.
From-SVN: r67541
* flags.h (flag_wrapv): New flag controlling overflow semantics.
* toplev.c (flag_wrapv): Declare the variable with default false.
(lang_independent_options): New option "-fwrapv" to set the above.
* fold-const.c (extract_muldiv_1): Disable optimization of (2*x)/2
as x, when signed arithmetic overflow wraps around.
(fold): Optimize "-A - B" as "-B - A" if overflow wraps around.
* loop.c (basic_induction_var): Ignore BIVs that rely on undefined
overflow when flag_wrapv is true.
* java/lang.c (java_init_options): Prescribe wrap-around two's
complement arithmetic overflow by setting flag_wrapv.
* doc/invoke.texi: Document new -fwrapv command line option.
* doc/c-tree.texi: Mention that the overflow semantics of
NEGATE_EXPR, PLUS_EXPR, MINUS_EXPR and MULT_EXPR is dependent
upon both flag_wrapv and flag_trapv.
* gcc.dg/fwrapv-1.c: New test case.
* gcc.dg/fwrapv-2.c: New test case.
* libjava.lang/Overflow.java: New test.
* libjava.lang/Overflow.out: New file.
From-SVN: r67270
* real.c (real_maxval): New function to return the largest finite
value representable in a given mode (i.e. FLT_MAX and DBL_MAX).
* real.h (real_maxval): Prototype here.
* fold-const.c (fold_inf_compare): Transform comparisons against
+-Infinity into comparisons against DBL_MAX (or equivalent).
* gcc.c-torture/execute/ieee/inf-2.c: New test case.
From-SVN: r67112
* fold-const.c (fold, case PLUS_EXPR and case MULT_EXPR): Restore
a number of conversions required for type consistency and previously
stripped off by STRIP_NOPS.
From-SVN: r65913
* tree.c (skip_simple_arithmetics_at, saved_expr_p): New functions.
(save_expr): Replace loop by call to skip_simple_arithmetics_at.
* tree.h: Add prototypes for the two new functions.
* fold-const.c (fold_binary_op_with_conditional_arg): Replace test
updates introduced in the previous revision by call to saved_expr_p.
* stor-layout.c (put_pending_size): Use skip_simple_arithmetics_at.
From-SVN: r65702
* fold-const.c (fold): Transform (c1 - x) cmp c2, where cmp is a
comparison operation and c1/c2 are floating point constants into
x swap(cmp) (c1 - c2).
* gcc.dg/20030414-2.c: New test case.
From-SVN: r65584
* fold-const.c (fold): Use "fold" following build in more places.
Optimize sqrt(x)*sqrt(x) as x, pow(x,y)*pow(z,y) as pow(x*z,y),
pow(x,y)*pow(x,z) as pow(x,y+z) and x/pow(y,z) as x*pow(y,-z).
* gcc.dg/builtins-11.c: New test case.
From-SVN: r65387
* fold-const.c (fold_inf_compare): New function to simplify FP
comparisons against +Infinity or -Infinity.
(fold): Optimize floating point comparisons against Infs and NaNs.
* gcc.c-torture/execute/ieee/fp-cmp-6.c: New test case.
* gcc.c-torture/execute/ieee/fp-cmp-7.c: New test case.
From-SVN: r64945
PR c/8224
* fold-const.c (extract_muldiv_1): Don't pass through type conversions
when signedness changes for division or modulus.
PR c/8224
* gcc.dg/20030323-1.c: New test.
From-SVN: r64760
* fold-const.c (fold_mathfn_compare): New function to simplify
comparisons against built-in math functions. Fold comparisons
of sqrt against constants.
(fold): Call fold_mathfn_compare when appropriate.
* gcc.dg/builtins-6.c: New test case.
From-SVN: r64619
* fold-const.c (omit_one_operand): No longer static.
* tree.h (omit_one_operand): Prototype here.
(div_and_round_double): Keep fold-const.c prototypes together.
* builtins.c (builtin_mathfn_code): Handle binary built-in
funtions, such as "pow" and "atan2".
(fold_builtin): Optimize both pow(x,0.0) and pow(1.0,y) to 1.0.
Simplify optimizations using "type" the builtin's return type.
* gcc.dg/builtins-5.c: New test case.
From-SVN: r63273
* fold-const.c (negate_expr_p): New function to determine whether
an expression can be negated cheaply.
(fold) [MINUS_EXPR]: Use it to determine whether to transform
-A - B into -B - A for floating point types.
From-SVN: r63059
* fold-const.c (extract_muldiv_1): Rename from extract_muldiv;
rearrange mult arguments for less recursion.
(extract_muldiv): New. Prevent runaway recursion.
Co-Authored-By: Richard Henderson <rth@redhat.com>
From-SVN: r62963
PR f/9258
* global.c (struct allocno): Add no_stack_reg.
(global_conflicts): Set no_stack_reg.
(find_reg): Use it.
* convert.c (convert_to_real): Fold - and abs only when profitable.
* fold-const.c (fold): Fold truncates in - and abs.
* gcc.c-torture/compile/20030115-1.c: New test.
* gcc.dg/i386-fpcvt-1.c: New test.
* gcc.dg/i386-fpcvt-2.c: New test.
From-SVN: r61329
* fold-const.c (fold) [COND_EXPR]: Avoid NOP_EXPRs better.
* integrate.c (copy_decl_for_inlining): Don't clear the rtl for
static/external decls.
cp/
* call.c (build_conditional_expr): Stabilize lvalues properly.
* cvt.c (ocp_convert): Don't build NOP_EXPRs of class type.
* tree.c (lvalue_p_1): Don't allow sloppy NOP_EXPRs as lvalues.
Don't allow CALL_EXPR or VA_ARG_EXPR, either.
* call.c (convert_like_real): Call decl_constant_value for an
IDENTITY_CONV even if there are no more conversions.
* cvt.c (build_up_reference): Don't push unnamed temps.
* decl2.c (do_namespace_alias): Namespace aliases are DECL_EXTERNAL.
* dump.c (cp_dump_tree): Don't try to dump class-specific fields
for a backend struct.
* except.c (wrap_cleanups_r, build_throw): Make
MUST_NOT_THROW_EXPRs void.
* init.c (expand_default_init): Update to handle MUST_NOT_THROW_EXPR.
* init.c (build_vec_delete_1): Pre-evaluate the base address.
* init.c (get_temp_regvar): Simplify logic.
* tree.c (cp_copy_res_decl_for_inlining): Only do debug tweaks if
our replacement is a decl.
From-SVN: r60851
PR c/8639
* fold-const.c (extract_muldiv): Don't propagate division unless
both arguments are multiples of C.
* gcc.c-torture/execute/20021119-1.c: New.
From-SVN: r59466
2002-11-05 Andrew Haley <aph@redhat.com>
* fold-const.c (fold): Don't transform (a0 op compound(a1,a2))
to (compound(a1,a0 op a2)) if a0 or a1 have side effects.
From-SVN: r58822
* fold-const.c (fold_binary_op_with_conditional_arg): Improve
handling of cases where one or both branches of the conditional
have void type, i.e. throw an exception or don't return.
(fold): Only apply (and undo) type conversion to the non-void
branches of a COND_EXPR.
* f/com.c (ffecom_subscript_check_): Cast the failure branch
of the bounds check COND_EXPR to void, to indicate noreturn.
(ffe_truthvalue_conversion): Only apply truth value conversion
to the non-void branches of a COND_EXPR.
From-SVN: r58661
PR c++/7209
* fold_const.c (fold_binary_op_with_conditional_arg): Always
build compound_expr if we used save_expr.
testsuite:
* g++.dg/expr/cond1.C: New test.
From-SVN: r58405
* fold-const.c (make_range): Only narrow to signed range if
the signed range is smaller than the unsigned range.
* gcc.c-torture/execute/20020911-1.c: New.
From-SVN: r57050
* fold-const.c (associate_trees): Only optimize NEGATE_EXPR in one
of the operands into MINUS_EXPR if code is PLUS_EXPR.
* gcc.c-torture/execute/20020805-1.c: New test.
From-SVN: r56058
* Makefile.in: rtlanal.o now depends upon real.h.
* flags.h [flag_signaling_nans]: New flag.
[HONOR_SNANS]: New macro.
* toplev.c [flag_signaling_nans]: Initialize to false.
(f_options): Add processing for "-fsignaling-nans".
(set_fast_math_flags): Clear flag_signaling_nans with -ffast-math.
(process_options): flag_signaling_nans implies flag_trapping_math.
* c-common.c (cb_register_builtins): Define __SUPPORT_SNAN__
when -fsignaling-nans. First step to implementing WG14's N965.
* fold-const.c (fold) [MULT_EXPR]: Conditionalize transforming
1.0 * x into x, and -1.0 * x into -x on !HONOR_SNANS.
[RDIV_EXPR]: Conditionalize x/1.0 into x on !HONOR_SNANS.
* simplify-rtx.c (simplify_relational_operation): Conditionalize
transforming abs(x) < 0.0 into false on !HONOR_SNANS.
* rtlanal.c: #include real.c for TARGET_FLOAT_FORMAT definitions
required by HONOR_SNANS. (may_trap_p): Floating point DIV, MOD,
UDIV, UMOD, GE, GT, LE, LT and COMPARE may always trap with
-fsignaling_nans. EQ and NE only trap for flag_signaling_nans
not flag_trapping_math (i.e. HONOR_SNANS but not HONOR_NANS).
* doc/invoke.texi: Document new -fsignaling-nans compiler option.
From-SVN: r55804
PR opt/4046
* fold-const.c (fold) [COND_EXPR]: Simplify A ? 0 : 1 to !A,
A ? B : 0 to A && B and A ? B : 1 into !A || B if both A and
B are truth values.
From-SVN: r55153
* fold-const.c (comparison_to_compcode): New function to convert
an comparison TREE CODE into a bit-based representation.
(compcode_to_comparison): New function to convert from this bit
based representation back to a comparison TREE CODE.
(fold_truthop): Simplify (x<y) && (x==y) and related composite
comparisons.
* gcc.c-tortuture/execute/compare-1.c: New test case.
* gcc.c-tortuture/execute/compare-2.c: New test case.
* gcc.c-tortuture/execute/compare-3.c: New test case.
From-SVN: r54647
* convert.c (convert_to_integer) [LSHIFT_EXPR]: Don't pass
the truncation down when the target type is signed.
[trunc1]: Use unsigned arithmetic for LSHIFT_EXPR.
* fold-const.c (extract_muldiv) [NOP_EXPR]: Don't pass through
the conversion if the target type is a smaller type.
From-SVN: r54627
* fold-const.c (fold) [EQ_EXPR]: Place both integer and real
constants last in comparisons. Optimize (x+1.0)>0.0 into the
equivalent x > -1.0 when -ffast-math.
* gcc.dg/20020607-2.c: New test case.
From-SVN: r54356
* tree.c (real_minus_onep): New function to test for -1.0.
* fold-const.c (fold) [MULT_EXPR]: Optimize -1.0*x into -x.
* gcc.dg/fnegate-1.c: New test case.
From-SVN: r54149
* tree.h: Forward-declare struct realvaluetype.
(struct tree_real_cst): Point to the REAL_VALUE_TYPE, do not
contain it.
(TREE_REAL_CST_PTR): New accessor.
(TREE_REAL_CST): Update.
* real.h: Include machmode.h.
(realvaluetype): Make it struct realvaluetype, not a typedef.
(build_real): Prototype here.
* tree.c: Include real.h.
(build_real): Allocate the REAL_VALUE_TYPE as a separate
object in GC memory, set TREE_REAL_CST_PTR to point to it.
(build_real_from_int_cst): Use build_real.
* ggc-common.c (ggc_mark_trees): Mark TREE_REAL_CST_PTR of a
REAL_CST.
* builtins.c, c-common.c, c-lex.c, dwarf2out.c, expr.c,
fold-const.c, print-tree.c, real.c, cp/mangle.c, cp/tree.c,
f/bld.c, f/com.c, f/expr.c, f/target.c, java/decl.c,
java/jcf-parse.c, java/parse.y, java/typeck.c: Include real.h.
* Makefile.in, cp/Make-lang.in, f/Make-lang.in,
java/Make-lang.in: Update dependency lists.
From-SVN: r53959
2002-05-15 Jakub Jelinek <jakub@redhat.com>
* fold-const.c (fold): Fix a typo.
2002-05-15 Eric Botcazou <ebotcazou@multimania.com>
* fold-const.c (fold) [LT_EXPR]: Move the transformation of a
comparison against the highest or lowest integer value before
the 'X >= CST to X > (CST - 1)' and 'X < CST to X <= (CST - 1)'
transformation and that of an unsigned comparison against 0
right after.
From-SVN: r53493
PR opt/3995
* fold-const.c (sign_bit_p): New function.
(fold) [EQ_EXPR]: Use this to convert (A & C) == 0 into A >= 0 and
(A & C) != 0 into A < 0, when constant C is the sign bit of A's type.
Reapply fold when converting (A & C) == C into (A & C) != 0.
(fold_binary_op_with_conditional_arg): Fix typo in comment.
testsuite/
* gcc.c-torture/execute/20020506-1.c: New test case.
From-SVN: r53241
* fold-const.c (lshift-double): Cast the high word to an unsigned
HOST_WIDE_INT when extracting sign bit to avoid compiler warning.
(div_and_round_double): Cast carry to a signed HOST_WIDE_INT to
avoid compiler warning. (fold): Remove redundant code from
BIT_AND_EXPR as integer operands are canonicalized to be arg1.
From-SVN: r53228
2002-04-18 David S. Miller <davem@redhat.com>
* config/sparc/sparc.h (BRANCH_COST): Define.
* fold-const.c (BRANCH_COST): Don't provide default here, expr.h
does it.
From-SVN: r52500
* fold-const.c (fold) [NOP_EXPR]: Convert (T)(x&c) into ((T)x&(T)c)
for integer constant c (if x has unsigned type or sign bit is not
set in c). This folds the zero/sign extension into the bit-wise and
operation.
* gcc.c-torture/compile/20020415-1.c: New.
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r52465
* toplev.c: Don't include setjmp.h. Kill float_handler_set,
float_handled, float_handler, float_signal, set_float_handler,
and do_float_handler. Set handler for SIGFPE to crash_signal.
* toplev.h: Don't prototype do_float_handler.
* c-lex.c: Fold parse_float into lex_number. Make warning
about portability of hex float constants more informative, and
don't issue it on top of a syntax error.
* fold-const.c: Fold const_binop_1 and fold_convert_1 into
their callers.
* real.h: Define REAL_VALUE_ABS here...
* simplify-rtx.c: ... not here. Fold check_fold_consts,
simplify_unary_real, simplify_binary_real, and
simplify_binary_is2orm1 into their callers.
* tree.c: Fold build_real_from_int_cst_1 into caller.
* doc/tm.texi: Document REAL_VALUE_ABS and REAL_VALUE_NEGATIVE.
* tsystem.h: Include float.h here...
* libgcc2.c: ... not here.
java:
* lex.c: Change java_perform_atof to take normal parameters
instead of a pointer to a parameter block. Call it directly
from java_lex.
testsuite:
* gcc.dg/c90-hexfloat-1.c: Adjust error regexps.
From-SVN: r51336
* real.h: Don't define REAL_INFINITY or REAL_IS_NOT_DOUBLE.
Always make REAL_VALUE_TYPE a struct containing an array of
HOST_WIDE_INT, not a double. Tidy up the code deciding how
big it is. Don't declare or use union real_extract.
* emit-rtl.c (init_emit_once), varasm.c (immed_real_const_1,
decode_rtx_const, output_constant_pool), config/a29k/a29k.c
(print_operand), config/arm/arm.c (output_move_double),
config/arm/arm.md (consttable_4, consttable_8),
config/romp/romp.c (output_fpops), config/s390/s390.h
(ASM_OUTPUT_SPECIAL_POOL_ENTRY), config/xtensa/xtensa.c
(xtensa_output_literal): Don't use union real_extract.
* config/dsp16xx/dsp16xx.c (print_operand), config/i860/i860.c
(sfmode_constant_to_ulong), config/ns32k/merlin.h
(PRINT_OPERAND), config/ns32k/ns32k.c (print_operand),
config/pdp11/pdp11.h (PRINT_OPERAND), config/we32k/we32k.h
(PRINT_OPERAND): Don't use local version of union
real_extract.
* config/convex/convex.c (check_float_value), config/vax/vax.c
(vax_float_literal), config/m88k/m88k.md (divdf3),
config/dsp16xx/dsp16xx.md (fixuns_trunchfhi2),
config/pdp11/pdp11.c (output_move_quad): Don't do host
arithmetic on target floating point quantities.
* config/a29k/a29k.md, config/dsp16xx/dsp16xx.c
(output_dsp16xx_float_const): Don't test HOST_FLOAT_FORMAT.
* fold-const.c (fold), simplify-rtx.c (simplify_binary_real):
Use MODE_HAS_INFINITIES rather than #ifdef REAL_INFINITY.
* real.c (earith): Test INFINITY rather than REAL_INFINITY;
NANS implies INFINITY, so can drop #ifdef NANS inside #ifndef
INFINITY.
* print-rtl.c (print_rtx): Disable code which needs
floating-point emulator.
* libgcc2.c: Include float.h and use DBL_MANT_DIG,
FLT_MANT_DIG, to define DF_SIZE and SF_SIZE, rather than
depending on HOST_FLOAT_FORMAT to be defined properly.
* ch/grant.c, cp/error.c: Always use REAL_VALUE_TO_DECIMAL;
don't test REAL_IS_NOT_DOUBLE.
* config/1750a/1750a.c (get_double, float_label): Delete.
(print_operand): Delete huge commented-out chunk. Use
REAL_VALUE_TO_DECIMAL.
* config/1750a/1750a-protos.h: Delete prototypes of deleted
functions.
* config/convex/convex.h: Always set TARGET_FLOAT_FORMAT to
IEEE_FLOAT_FORMAT.
* config/i370/i370.h (PRINT_OPERAND [TARGET_HLASM version]):
Use REAL_VALUE_TO_DECIMAL as ELF version does.
* config/m88k/m88k.c (real_power_of_2_operand,
legitimize_operand): Take the REAL_VALUE_TYPE and/or union
real_extract out of the union; run the input through
REAL_VALUE_TO_TARGET_DOUBLE, then plug the pair of longwords
from that into the union.
* config/pdp11/pdp11.c (output_move_double): Rearrange
parentheses to make automatic indenter happy.
* doc/tm.texi (Cross-compilation): Rename node to "Floating
Point" and rewrite to describe current situation. Also adjust
documentation of REAL_VALUE_TO_TARGET_SINGLE and friends to
match code.
* doc/rtl.texi: Adjust cross reference.
From-SVN: r51210
* defaults.h (MODE_HAS_NANS, MODE_HAS_INFINITIES): New.
(MODE_HAS_SIGNED_ZEROS, MODE_HAS_SIGN_DEPENDENT_ROUNDING): New.
* flags.h (HONOR_NANS, HONOR_INFINITIES, HONOR_SIGNED_ZEROS): New.
(HONOR_SIGN_DEPENDENT_ROUNDING): New.
* builtins.c (expand_builtin_mathfn): Use HONOR_NANS.
* c-common.c (truthvalue_conversion): Reduce x - y != 0 to x != y
unless x and y could be infinite.
(expand_unordered_cmp): New, mostly split from expand_tree_builtin.
Check that the common type of both arguments is a real, even for
targets without unordered comparisons. Allow an integer argument
to be compared against a real.
(expand_tree_builtin): Use expand_unordered_cmp.
* combine.c (combine_simplify_rtx): Use the new HONOR_... macros.
* cse.c (fold_rtx): Likewise. Fix indentation.
* fold-const.c (fold_real_zero_addition_p): New.
(fold): Use it, and the new HONOR_... macros.
* ifcvt.c (noce_try_minmax): Use the new HONOR_... macros.
* jump.c (reversed_comparison_code_parts): After searching for
the true comparison mode, use HONOR_NANS to decide whether it
can be safely reversed.
(reverse_condition_maybe_unordered): Remove IEEE check.
* simplify-rtx.c (simplify_binary_operation): Use the new macros
to decide which simplifications are valid. Allow the following
simplifications for IEEE: (-a + b) to (b - a), (a + -b) to (a - b),
and (a - -b) to (a + b).
(simplify_relational_operation): Use HONOR_NANS.
* doc/tm.texi: Document the MODE_HAS_... macros.
From-SVN: r50401
* tree.def (VIEW_CONVERT_EXPR): New tree code.
* tree.h (handled_component_p): New declaration.
* alias.c (handled_component_p): Move function from here ...
* expr.c (handled_component_p): ... to here and non longer static.
(is_zeros_p, case VIEW_CONVERT_EXPR): New case.
(store_field): Remove unneeded MEM_COPY_ATTRIBUTES call.
(get_inner_reference): Handle VIEW_CONVERT_EXPR.
(expand_expr, case VAR_DECL): Clean up handling of re-layout case.
(expand_expr, case VIEW_CONVERT_EXPR): New case.
(expand_expr, cse ADDR_EXPR): No need to copy if already
BIGGEST_ALIGNMENT.
* fold-const.c (fold, case VIEW_CONVERT_EXPR): New case.
* varasm.c (initializer_constant_value_p, case VIEW_CONVERT_EXPR): New.
(output_constant): Handle VIEW_CONVERT_EXPR.
* dwarf2out.c (loc-descriptor_from_tree, add_bound_info):
Add new case for VIEW_CONVERT_EXPR.
From-SVN: r47179
* c-common.c (signed_or_unsigned_type): Handle machine mode types
which have no corresponding C type.
* fold_const.c (target_isinf,target_isnan,target_negative): Update
the representation of 64-bit doubles to work with 64-bit ints.
From-SVN: r45479
* toplev.c (set_float_handler): Make static.
* toplev.h: Don't prototype set_float_handler.
* simplify-rtx.c: Don't include setjmp.h.
(simplify_unary_real, simplify_binary_real, simplify_binary_is2orm1):
New functions.
(simplify_unary_operation, simplify_binary_operation): Use them,
via do_float_handler.
* fold-const.c: Don't include setjmp.h.
(exact_real_inverse_1): New function.
(exact_real_inverse): Use it, via do_float_handler.
* varasm.c: Don't include setjmp.h.
(assemble_real_1): New function.
(assemble_real): Use it, via do_float_handler.
Call internal_error if we get a trap here.
* c-parse.in, cse.c, cselib.c, ch/lex.c, config/i386/i386.c,
config/pj/pj.c, config/s390/s390.c: Don't include setjmp.h.
* java/lex.h: Don't include setjmp.h. Don't define
SET_FLOAT_HANDLER or prototype set_float_handler.
From-SVN: r44815
* integrate.c (copy_insn_list): handle
NOTE_INSN_DELETED_LABEL, as if it were CODE_LABEL.
(copy_rtx_and_substitute): Likewise; behave to NOTE_INSN_DELETED_LABEL
identically as to CODE_LABEL.
* fold-const (fold): Convert A/B/C to A/(B*C) and
A/(B/C) to (A/B)*C
* except.c (connect_post_landing_pads): Delete the RESX insns.
From-SVN: r44193
* fold-const.c (fold): Use first_rtl_op rather than
TREE_CODE_LENGTH when looping over parameters of a tree.
Correct strange grouping in test for evaluated SAVE_EXPR.
From-SVN: r41437
* fold-const.c (fold): Before optimizing unsigned comparison with
0x7fffffffU, make sure arg0 is integral type.
* gcc.c-torture/execute/20010329-1.c: New test.
From-SVN: r41000
* fold-const.c (extract_muldiv) [case PLUS_EXPR]: If not MULT_EXPR,
check if either operand is divisible by C.
(multiple_of_p): Handle LSHIFT_EXPR with small constant shift.
If type is signed, consider negative numbers as well.
* gcc.c-torture/execute/20010222-1.c: New test.
From-SVN: r39996
* fold-const.c (fold_binary_op_with_conditional_arg): New
function, split out from ...
(fold): ... here.
* tree.def (COND_EXPR): Document the use of VOID_TYPE for
conditional arms that throw exceptions.
From-SVN: r39822
* stor-layout.c (is_pending_size, put_pending_size): New functions.
(variable_size): Call put_pending_size.
* tree.h (is_pending_size, put_pending_size): Add prototypes.
* fold-const.c (extract_muldiv): If SAVE_EXPR is on the pending
sizes list, put newly created SAVE_EXPR there as well.
* gcc.c-torture/execute/20010209-1.c: New test.
* config/ia64/ia64.c (last_group): Only 2 entries are needed.
(errata_find_address_regs): load_group has only 2 entries.
(errata_emit_nops): Likewise. shladd is not problematic.
Clear last_group if nop was emitted.
(fixup_errata): load_group has only 2 entries.
Optimize.
From-SVN: r39663
* fold-const.c (split_tree): Don't assume a constant isn't splittable.
(fold): Don't assume a constant isn't foldable.
* tree.c (build): Set TREE_CONSTANT for an expression with no
side-effects and constant operands.
(build1): Likewise.
From-SVN: r39585
* fold-const.c (fold): When folding a CONJ_EXPR of a COMPLEX_CST,
use TREE_REALPART and TREE_IMAGPART instead of TREE_OPERAND.
testsuite:
* gcc.c-torture/compile/20001222-1.x: Remove.
From-SVN: r38696
* fold-const.c (force_fit_type): Unsigned values can overflow
if they are sizetype.
(int_const_binop): Don't use cache if overflows.
* cp/typeck.c (dubious_conversion_warning): Suppress if
TYPE_IS_SIZETYPE.
From-SVN: r36970
* calls.c (ECF_SP_DEPRESSED): New macro.
(calls_function_1): Treat calling sp-depressed function as alloca.
(emit_call_1): Don't adjust SP if calling sp-depressed function.
(expand_call): Set ECF_SP_DEPRESSED if TYPE_RETURNS_STACK_DEPRESSED.
If sp-depressed, ensure block saves and restores SP.
* fold-const.c (extract_muldiv): Only check TYPE_IS_SIZETYPE
for INTEGER_TYPE.
* function.c (keep_stack_depressed): New function.
(thread_prologue_and_epilogue_insns): Call it.
* print-tree.c (print_node): Use HOST_WIDE_INT_PRINT_UNSIGNED
to print DECL_OFFSET_ALIGN.
Print no-force-blk and transparent-union flags properly.
* stmt.c (expand_goto_internal): Don't restore stack if last block
and function returns with sp depressed.
(fixup_gotos): Likewise.
(save_stack_pointer): New function, from code in expand_decl.
(expand_decl): Call new function.
* tree.h (TYPE_IS_SIZETYPE): Call INTEGER_TYPE_CHECK.
(TYPE_RETURNS_STACK_DEPRESSED): New macro.
(save_stack_pointer): New declaration.
From-SVN: r35734
2000-08-04 Andreas Schwab <schwab@suse.de>
* cppmain.c (cb_def_pragma): Skip the first two tokens from the
token list, which are always `#' and `pragma'.
2000-08-04 Zack Weinberg <zack@wolery.cumb.org>
* tree.c (tree_expr_nonnegative_p): Move to...
* fold-const.c: ... here. Also handle BIND_EXPR and RTL_EXPR.
(rtl_expr_nonnegative_p): New.
* tree.h: Add prototype for rtl_expr_nonnegative_p.
* real.h (CONST_DOUBLE_LOW, CONST_DOUBLE_HIGH, CONST_DOUBLE_MEM,
CONST_DOUBLE_CHAIN: Move to...
* rtl.h: ...here. Use XCINT/XCEXP.
* Makefile.in: Remove toplev.o from OBJS. Add rule to make
libbackend.a; add libbackend.a to STAGESTUFF. Add BACKEND
variable. Use BACKEND when linking cc1, not OBJS. Add BACKEND
to VOL_FILES.
* objc/Make-lang.in (cc1obj): Link with $(BACKEND).
ch:
* Make-lang.in (cc1chill): Depend on $(BACKEND), not stamp-objlist.
* Makefile.in (cc1chill): Link with $(BACKEND). Define BACKEND,
eliminate C_OBJS (was commented out), OBJS, OBJDEPS.
cp:
* Make-lang.in (cc1plus): Depend on $(BACKEND), not stamp-objlist.
* Makefile.in: Add C_OBJS, BACKEND; delete OBJS, OBJDEPS.
(cc1plus): Link with $(BACKEND) and $(C_OBJS).
f:
* Make-lang.in (f771): Depend on $(BACKEND), not stamp-objlist.
* Makefile.in: Add BACKEND; delete OBJS, OBJDEPS.
(f771): Link with $(BACKEND).
java:
* Make-lang.in (jc1, jv-scan): Depend on $(BACKEND), not stamp-objlist.
* Makefile.in: Add BACKEND; delete OBJS, OBJDEPS.
(jc1): Link with $(BACKEND).
(jv-scan): Depend on version.o, not all of $(OBJS) or $(BACKEND).
From-SVN: r35501
2000-07-08 Toon Moene <toon@moene.indiv.nluug.nl>
* fold-const.c (extract_muldiv) case PLUS_EXPR, MINUS_EXPR:
Check whether c divides op1 exactly if operation is not
multiplication.
From-SVN: r34928
(extract_muldiv): When constructing a multiplier/divisor, do not expect
const_binop to correctly determine if overflow has occured, so check explicitly.
From-SVN: r34135
* Makefile.in ($(srcdir)/c-parse.y: c-parse.in): Enclose the whole
message in quotes. Otherwise, IBM's make program treats the '#' as the
start of a comment and ignores the remainder of the line.
* c-lex.c (yylex): Change for EBCDIC, lower case characters preceed
upper case.
* cccp.c (initialize_char_syntax): Allow for holes in EBCDIC.
* cexp.y (initialize_random_junk): Likewise.
* cppfiles.c (find_include_file): Cast alloca return value.
* cppinit.c (initialize_standard_includes): Likewise.
* cpplib.c (cpp_define, cpp_undef): Likewise.
* defaults.h (ASM_OUTPUT_ASCII): Use ISPRINT.
* final.c (output_asm_insn): Allow for holes in EBCDIC.
* fold-const.c (CHARMASK): New.
(real_hex_to_f): Use it.
* real.c (CHARMASK): New.
(etoasc, asctoeg): Use it.
(asctoeg): EBCDIC lower case characters preceed upper case.
From-SVN: r33192
* expr.c (store_constructor): SIZE now signed.
For EXPR_SIZE, don't evaluate size; just needed if constant.
* fold-const.c (fold): Fix a number of cases when folded tree is
wrong type.
* function.c (flush_addressof): Reenable.
* tree.h (flush_addressof): Likewise.
* toplev.c (independent_decode_option): Look at strings_processed.
* config/alpha/alpha.h (MINIMUM_ATOMIC_ALIGNMENT): Cast to unsigned.
From-SVN: r32783
modify sizes to be unsigned and use HOST_WIDE_INT.
* alias.c (reg_known_value_size): Now unsigned.
* c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position.
(really_start_incremental_init): Use bitsize_zero_node.
(push_init_level, pop_init_level, output_init_element): Likewise.
Use bitsize_unit_node and bitsize_one_node.
(output_pending_init_elements, process_init_element): Likewise.
* combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned.
(make_extraction): Position and length HOST_WIDE_INT and unsigned
HOST_WIDE_INT, respectively.
(get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT.
(num_sign_bit_copies): Returns unsigned.
BITWIDTH now unsigned; rework arithmetic.
Remove recursive call from arg to MAX.
(combine_instructions, init_reg_last_arrays): NREGS now unsigned.
(setup_incoming_promotions, can_combine_p, try_combine, simplify_set):
REGNO now unsigned.
(set_nonzero_bit_and_sign_copies): NUM now unsigned.
(find_split_point, expand_compound_operation, make_extraction): LEN
now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT.
(make_field_assignment): Likewise.
(combine_simplify_rtx): Add cast.
(expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic.
(force_to_mode): WIDTH now unsigned; add cast.
(if_then_else_cond): SIZE now unsigned.
(nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned.
(extended_count): Now returns unsigned.
(simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT.
Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned.
(simplify_comparison): MODE_WIDTH now unsigned.
(update_table_tick): REGNO and ENDREGNO now unsigned; new var R.
(mark_used_regs_combine): Likewise; rework arithmetic.
(record_value_for_reg): REGNO, ENDREGNO, and I now unsigned.
(record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise.
(record_promoted_value): REGNO now unsigned.
(get_last_value_validate): REGNO, ENDREGNO, and J now unsigned.
(get_last_value): REGNO now unsigned.
(use_crosses_set_p): REGNO and ENDREGNO now unsigned.
(reg_dead_regno, reg_dead_endregno): Now unsigned.
(remove_death): Arg REGNO now unsigned.
(move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned.
(reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO
now unsigned.
* convert.c (convert_to_integer): INPREC and OUTPREC now unsigned.
* cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned.
(struct cse_reg_info): REGNO now unsigned.
(cached_regno): Now unsigned.
(REGNO_QTY_VALID_P): Add cast.
(make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned.
(remove_invalid_regs): Likewise.
(remove_invalid_subreg_refs): Likewise; arg WORD also unsigned
as are variables END and I.
(get_cse_reg_info, insert): Likewise.
(mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned.
(canon_hash): Likewise.
(insert_regs, lookup_for_remove): REGNO now unsigned.
(invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned.
New variable RN.
* dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0.
* dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast.
* emit-rtl.c (subreg_realpart_p): Add cast.
(operand_subword): Arg I is now unsigned as is var PARTWORDS.
(operand_subword_force): Arg I is now unsigned.
* except.c (eh_regs): Variable I is now unsigned.
* explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT.
* expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT;
length is unsigned HOST_WIDE_INT; likewise for internal variables.
(store_split_bit_field, extract_fixed_bit_field): Likewise.
(extract_split_bit_field, store_bit_field, extract_bit_field):
Likewise.
* expr.c (store_constructor_fields, store_constructor, store_field):
Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT.
(expand_assignment, expand_expr, expand_expr_unaligned): Likewise.
(do_jump): Likewise.
(move_by_pieces, move_by_pieces_ninsns, clear_by_pieces):
MAX_SIZE is now unsigned.
(emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned.
(emit_group_store): Likewise.
(emit_move_insn): I now unsigned.
(store_constructor): Use host_integerp, tree_low_cst, and
bitsize_unit_node.
(get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT.
Rework all calculations to use trees and new fields.
* expr.h (promoted_input_arg): Regno now unsigned.
(store_bit_field, extract_bit_field): Adjust types of pos and size.
(mark_seen_cases): Arg is HOST_WIDE_INT.
* flow.c (verify_wide_reg_1): REGNO now unsigned.
* fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT;
precisions and alignments are unsigned.
(optimize_bit_field_compare, fold_truthop): Likewise.
(int_const_binop): Adjust threshold for size_int_type_wide call.
(fold_convert): Likewise.
(size_int_type_wide): Make table larger and fix thinko that only
had half of table used.
(all_ones_mask_p, fold): Precisions are unsigned.
* function.c (put_reg_info_stack): REGNO is unsigned.
(instantiate_decl): Size is HOST_WIDE_INT.
(instantiate_virtual_regs): I is unsigned.
(assign_parms): REGNO, REGNOI, and REGNOR are unsigned.
(promoted_input_arg): REGNO is unsigned.
* function.h (struct function): x_max_parm_reg is now unsigned.
* gcse.c (max_gcse_regno): Now unsigned.
(struct null_pointer_info): min_reg and max_reg now unsigned.
(lookup_set, next_set): REGNO arg now unsigned.
(compute_hash_table): REGNO and I now unsigned.
(handle_avail_expr): regnum_for_replacing now unsigned.
(cprop_insn): REGNO now unsigned.
(delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned.
* ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case.
* global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned.
* hard-reg-set.h (reg_class_size): Now unsigned.
* integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO.
* jump.c (mark_modified_reg): I now unsigned; add cast.
(rtx_equal_for_thread_p): Add cast.
* loop.c (max_reg_before_loop): Now unsigned.
(struct_movable): REGNO now unsigned.
(try_copy_prop): REGNO arg unsigned.
(regs_match_p): XN and YN now unsigned.
(consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned.
(strength_reduce): Likewise; NREGS also unsigned.
(first_increment_giv, last_increment_giv unsigned): Now unsigned.
* loop.h (struct iv_class): REGNO now unsigned.
(max_reg_before_loop, first_increment_giv, last_increment_giv):
Now unsigned.
* machmode.h (mode_size, mode_unit_size): Now unsigned.
(mode_for_size, smallest_mode_for_size): Pass size as unsigned.
* optabs.c (expand_binop): I and NWORDS now unsigned.
(expand_unop): I now unsigned.
* print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do
print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET.
* real.c (significand_size): Now returns unsigned.
* real.h (significand_size): Likewise.
* regclass.c (reg_class_size): Now unsigned.
(choose_hard_reg_mode): Both operands now unsigned.
(record_reg_classes): REGNO and NR now unsigned.
(reg_scan): NREGS now unsigned.
(reg_scan_update): old_max_regno now unsigned.
(reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned.
* reload.c (find_valid_class): BEST_SIZE now unsigned.
(find_dummy_reload): REGNO, NWORDS, and I now unsigned.
(hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned.
Likewise for variable R.
(refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned,
as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R.
(find_equiv_reg): Add casts.
(regno_clobbered_p): Arg REGNO now unsigned.
* reload.h (struct reload): NREGS now unsigned.
(refers_to_regno_for_reload_p): Regno args are unsigned.
(regno_clobbered_p): Likewise.
* reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned.
(compute_use_by_pseudos): REGNO now unsigned.
(find_reg): I and J now unsigned, new variable K, and change loop
variables accordingly; THIS_NREGS now unsigned.
(alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned.
(spill_hard_reg): REGNO arg now unsigned; add casts.
(forget_old_reloads_1): REGNO, NR, and I now unsigned.
(mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned.
(clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO,
END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned.
(reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned.
(choose_reload_regs): MAX_GROUP_SIZE now unsigned.
(emit_reload_insns): REGNO now unsigned.
(reload_cse_move2add): Add cast.
(move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO
and rework loop.
* resource.c (mark_referenced_resources, mark_set_resources): New
variable R; REGNO and LAST_REGNO now unsigned.
(mark_target_live_regs): J and REGNO now unsigned.
* rtl.c (mode_size, mode_unit_size): Now unsigned.
* rtl.h (union rtunion_def): New field rtuint.
(XCUINT): New macro.
(ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT.
(operand_subword, operand_subword_force): Word number is unsigned.
(choose_hard_reg_mode): Operands are unsigned.
(refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned.
(find_regno_note, find_regno_fusage, replace_regs): Likewise.
(regno_use_in, combine_instructions, remove_death): Likewise.
(reg_scan, reg_scan_update): Likewise.
(extended_count): Return is unsigned.
* rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I,
INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO.
(reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned.
(reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned.
(reg_reg_last_1): FIRS and LAST now unsigned.
(dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned.
(dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO
now unsigned.
(find_regno_note, regno_use_in): Arg REGNO now unsigned.
(find_regno_fusage): Likewise; also var REGNOTE now unsigned.
(find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned.
(replace_regs): Arg NREGS now unsigned.
* sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0.
* simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned.
(simplify_binary_operation): Likewise.
(cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and
THIS_LAST now unsigned.
(cselib_record_set): Add cast.
* ssa.c (ssa_max_reg_num): Now unsigned.
(rename_block): REGNO now unsigned.
* stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT;
sizes now unsigned.
(all_cases_count): Just return -1 not -2.
COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT.
Rework tests to use trees whenever possible.
Use host_integerp and tree_low_cst.
(mark_seen_cases): COUNT arg now HOST_WIDE_INT;
Likewise variable NEXT_NODE_OFFSET; XLO now unsigned.
(check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT.
* stor-layout.c (mode_for_size): SIZE arg now unsigned.
(smallest_mode_for_size): Likewise.
(layout_decl): Simplify handing of a specified DECL_SIZE_UNIT.
KNOWN_ALIGN is now an alignment, so simplify code.
Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type.
(start_record_layout): Renamed from new_record_layout_info.
Update to new fields.
(debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far):
New functions.
(place_union_field): Renamed from layout_union_field.
Update to use new fields in rli.
(place_field): Renamed from layout_field.
Major rewrite to use new fields in rli; pass alignment to layout_decl.
(finalize_record_size): Rework to use new fields in rli and handle
union.
(compute_record_mode): Rework to simplify and to use new DECL fields.
(finalize_type_size): Make rounding more consistent.
(finish_union_layout): Deleted.
(layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either.
(layout_type, case RECORD_TYPE): Call new function names.
(initialize_sizetypes): Set TYPE_IS_SIZETYPE.
(set_sizetype): Set TYPE_IS_SIZETYPE earlier.
(get_best_mode): UNIT is now unsigned; remove casts.
* tree.c (bit_position): Compute from new fields.
(byte_position, int_byte_position): New functions.
(print_type_hash_statistics): Cast to remove warning.
(build_range_type): Use host_integerp and tree_low_cst to try to hash.
(build_index_type): Likewise; make subtype of sizetype.
(build_index_2_type): Pass sizetype to build_range_type.
(build_common_tree_nodes): Use size_int and bitsize_int to
initialize nodes; add bitsize_{zero,one,unit}_node.
* tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK.
(DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise.
(DECL_PACKED, DECL_BIT_FIELD): Likewise.
(DECL_FIELD_BITPOS): Deleted.
(DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields.
(DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK.
(DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise.
(DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise.
(DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise.
(DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise.
(DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK.
(DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK.
(DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise.
(DECL_ALIGN): Adjust to new field in union.
(DECL_OFFSET_ALIGN): New field.
(DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK.
(DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK.
(union tree_decl): Add struct for both aligns.
(enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}.
(bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added.
(struct record_layout_info): Rework fields to have offset
alignment and byte and bit position.
(start_record_layout, place_field): Renamed from old names.
(rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls.
(byte_position, int_byte_position): Likewise.
(get_inner_reference): Change types of position and length.
* unroll.c (unroll_loop): New variable R; use for some loops.
MAX_LOCAL_REGNUM and MAXREGNUM now unsigned.
(calculate_giv_inc): Arg REGNO now unsigned.
(copy_loop_body): REGNO and SRC_REGNO now unsigned.
* varasm.c (assemble_variable): Clean up handling of size using
host_integerp and tree_low_cst.
(decode_addr_const): Use byte, not bit, position.
(output_constructor): bitpos and offsets are HOST_WIDE_INT;
use tree_low_cst and int_bit_position.
* objc/objc-act.c (build_ivar_list_initializer): Use byte_position.
* ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT.
* ch/typeck.c (expand_constant_to_buffer): Use int_byte_position.
(extract_constant_from_buffer): Likewise.
* cp/class.c (build_vbase_pointer_fields): layout_field now
place_field.
(get_vfield_offset): Use byte_position.
(set_rtti_entry): Set OFFSET to ssizetype zero.
(get_binfo_offset_as_int): Deleted.
(dfs_record_base_offsets): Use tree_low_cst.
(dfs_search_base_offsets): Likewise.
(layout_nonempty_base_or_field): Reflect changes in RLI format
and call byte_position.
(layout_empty_base): Convert offset to ssizetype.
(build_base_field): use rli_size_unit_so_far.
(dfs_propagate_binfo_offsets): Do computation in proper type.
(layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets.
(layout_class_type): Reflect changes in RLI names and fields.
(finish_struct_1): Set DECL_FIELD_OFFSET.
* cp/dump.c (dequeue_and_dump): Call bit_position.
* cp/expr.c (cplus_expand_constant): Use byte_position.
* cp/rtti.c (expand_class_desc): Use bitsize_one_node.
* cp/typeck.c (build_component_addr): Use byte_position and don't
special case for zero offset.
* f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node.
(ffecom_tree_canonize_ref_): Likewise.
* java/class.c (make_field_value): Use byte_position.
* java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position.
(java_array_data_offset): Likewise.
* java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to
bzero call.
From-SVN: r32742
* tree.h (INT_CST_LT, INT_CST_LT_UNSIGNED): Remove unneeded casts.
(struct tree_int_cst): int_cst_low is now unsigned HOST_WIDE_INT.
(attribute_hash_list, type_hash_canon): hashcode is now unsigned.
(type_hash_lookup, type_hash_add, type_hash_list): Likewise.
(min_precision): Result is unsignd.
(add_double, neg_double, mul_double): Low word is unsigned.
(lshift_double, rshift_double, lrotate_double): Likewise.
(rrotate_double, div_and_round_double): Likewise.
(tree_floor_log2, compare_tree_int): New functions.
(preserve_rtl_expr_temps): New declaration.
* c-common.c (declare_hidden_char_array): Use compare_tree_int.
(decl_attributes): Use tree_log2 to find alignment.
Check for TREE_INT_CST_HIGH for format args.
(min_precision): Now unsigned.
Use tree_floor_log2.
(truthvalue_conversion): Delete long-disabled code.
* c-decl.c (finish_struct): Clean up tests on field width.
(finish_function): Use compare_tree_int.
* c-pragma.c (handle_pragma_token): Use tree_log2 for alignment.
* c-typeck.c (comptypes): Use tree_int_cst_equal.
(default_conversion, digest_init): Use compare_tree_int.
(build_binary_op): Use integer_all_onesp and compare_tree_int.
Fix type errors in forming masks.
* calls.c (initialize_argument_information): Use compare_tree_int.
* dbxout.c (dbxout_type): Cast TREE_INT_CST_LOW to HOST_WIDE_INT.
* except.c (expand_eh_region_start_tree): Use compare_tree_int.
* expr.c (is_zeros_p, case INTEGER_CST): Use integer_zerop.
(store_field): Use compare_tree_int.
(expand_expr, case CONSTRUCTOR): Use TYPE_SIZE_UNIT.
(expand_expr, case ARRAY_REF): Use compare_tree_int.
(do_jump, case BIT_AND_EXPR): Use tree_floor_log2.
(do_store_flag): Use compare_tree_int.
* fold-const.c (encode, decode): Low part is always unsigned.
(force_fit_type, add_double, neg_double, mul_double): Likewise.
(lshift_double, rshift_double, lrotate_double): Likewise.
(rrotate_double, div_and_round_double, int_const_binop): Likewise.
(fold_convert): Use compare_tree_int.
(operand_equal_p, case INTEGER_CST): Use tree_int_cst_equal.
(invert_truthvalue, case INTEGER_CST): Likewise.
(fold): Use compare_tree_int; add casts for unsigned TREE_INT_CST_LOW.
* mkdeps.c (deps_dummy_targets): Make I unsigned.
* rtl.h (add_double, neg_double, mul_double): Low words are unsigned.
(lshift_double, rshift_double, lrotate_double, rrotate_double):
Likewise.
* stmt.c (expand_decl): Use compare_tree_int and mode_for_size_tree.
(expand_end_case): Use compare_tree_int.
(estimate_case_costs): Cast TREE_INT_CST_LOW to HOST_WIDE_INT.
* stor-layout.c (mode_for_size_tree): Use compare_tree_int.
(layout_decl): Likewise.
(layout_record, layout_union): Make sizes unsigned.
(layout_type, case VOID_TYPE): TYPE_SIZE must be bitsizetype.
(layout_type, case QUAL_UNION_TYPE): Use compare_tree_int.
* tree.c (struct type_hash): hashcode is unsigned.
(build_type_attribute_variant, type_hash_list): Likewise.
(type_hash_lookup, type_hash_add, type_hash_canon): Likewise.
(attribute_hash_list, build_array_type, build_method_type): Likewise.
(build_complex_type): Likewise.
(real_value_from_int_cst): Remove unneeded casts.
(integer_all_onesp): Add casts.
(tree_floor_log2, compare_tree_int): New functions.
(build_index_type): Use tree_int_cst_sgn.
* varasm.c (assemble_variable): Use compare_tree_int.
* ch/actions.c (chill_convert_for_assignment): INDEX is unsigned
HOST_WIDE_INT.
* ch/ch-tree.h (DECL_NESTING_LEVEL): Use TREE_INT_CST_HIGH
since unsigned.
* ch/except.c (chill_handle_on_labels): ALTERNATIVE is unsigned.
Use compare_tree_int.
(expand_goto_except_cleanup): Likewise.
* cp/class.c (dfs_modify_vtables): I is now unsigned.
(check_bitfield_decl): Use tree_int_cst_sgn and compare_tree_int.
(build_base_field): Add casts of TREE_INT_CST_LOW to HOST_WIDE_INT.
* cp/error.c (dump_expr): Cast TREE_INT_CST_HIGH to unsigned.
* cp/init.c (build_vec_init): Cast TREE_INT_CST_LOW to HOST_WIDE_INT.
* cp/method.c (build_overload_int): Cast TREE_INT_CST_HIGH to unsigned.
* cp/typeck.c (build_binary_op, case TRUNC_DIV_EXPR):
Call integer_all_onesp.
* cp/typeck2.c (process_init_constructor): Use compare_tree_int.
* f/com.c (ffecom_f2c_set_lio_code_): Use compare_tree_int.
(ffecom_sym_transform_, ffecom_transform_common_): Likewise.
(ffecom_transform_equiv_): Likewise.
* java/decl.c (emit_init_test_initialization): Mark KEY as unused.
* java/expr.c (build_newarray): Cast TREE_INT_CST_LOW to HOST_WIDE_INT.
(build_anewarray): Likewise.
* java/parse.y (patch_newarray): Likewise.
* java/parse.c: Regenerated.
From-SVN: r32383
* c-common.c (c_common_nodes_and_builtins): Make sizetype_endlink
reference the language-equivalent of sizetype.
* c-typeck.c (comptypes): Treat sizetype like its language equivalent.
* fold-const.c (size_binop, size_diffop): Put back checks.
* gcse.c (dump_hash_table): Fix minor error in last change.
* stor-layout.c (set_sizetype): Set TYPE_DOMAIN of sizetype.
Clear TYPE_{NEXT,MAIN}_VARIANT and TYPE_{POINTER,REFERENCE}_to of
all sizetypes.
* cp/typeck.c (comptypes): Treat sizetype like its language equivalent.
From-SVN: r32291
* builtins.c (c_strlen): Use size_diffop and return ssizetype value.
(expand_builtin_strcpy): Pass correct type to size_binop.
(expand_builtin_strcmp): Likewise.
Clean up conditional structure.
* c-decl.c (init_decl_processing): Don't call set_sizetype twice.
(complete_array_type): Don't use size_binop for MAXINDEX.
* c-typeck.c (c_sizeof): Use size_one_node and TYPE_SIZE_UNIT.
(c_sizeof_nowarn, c_size_in_bytes): Likewise.
(c_alignof): Use size_one_node.
(build_unary_op): Pass arg of proper type to size_binop.
(really_start_incremental_init, push_init_level): Use sizetype for
constructor{,_bit,_unfilled}_index.
(pop_init_label, output_init_element): Likewise.
(output_pending_init_elements, process_init_element): Likewise.
* calls.c (compute_argument_block_size): Field VAR is ssizetype.
* expr.c (store_expr): Use size_int.
(store_constructor): Use proper types for size_binop args.
(get_inner_reference, expand_expr, case ARRAY_REF): Likewise.
(expand_expr_unaligned): Likewise.
(string_contant): Return object of sizetype.
* expr.h (SUB_PARM_SIZE): Call size_diffop and pass proper types.
(ARGS_SIZE_RTX): Call ARGS_SIZE_TREE.
(ARGS_SIZE_TREE): Pass proper types to size_binop.
* fold-const.c (int_const_binop): Refine when size_int is called.
(fold_convert): Likewise.
(size_int_wide): Rework to take KIND as arg, only take low order
bits, handle new sizetype_tab datatype, and chain entries in
size_table.
(size_int_type_wide): New function.
(size_binop): Validate types of arguments.
(ssize_binop): Deleted.
(size_diffop): New function.
(extract_muldiv): Only fold division into multiplication for sizetypes.
* function.c (assign_parms): Use size_diffop and make sure
VAR field is of ssizetype; also pass proper type to size_binop.
(locate_and_pad_parm, pad_to_arg_alignment): Likewise.
(round_down): Deleted from here.
* store-layout.c (sizetype_tab): Now an array.
(sizetype_set, early_root_list): New variables.
(variable_size): Use size_one_node.
(round_up): Pass proper type to size_binop.
(round_down): Moved to here and corrected as above.
(layout_record): Pass proper arg types to size_binop.
(layout_type): Likewise.
If sizetype_set is zero, record the type just laid out.
(make_unsigned_type): Don't call set_sizetype;
(make_signed_type): Likewise; also, call fixup_signed_type.
(initialize_sizetypes): New function.
(set_sizetype): Make copy of types, set TYPE_IS_SIZETYPE, and
set name of bitsizetype to "bit_size_type".
Fix up type of sizes of all types made before call.
* tm.texi (ROUND_TYPE_SIZE_UNIT): New macro.
* tree.c (fix_sizetype): Deleted.
(build_common_tree_nodes): Call initialize_sizetypes.
(build_common_tree_nodes_2): Don't call fix_sizetype.
* tree.h (TYPE_IS_SIZETYPE): New macro.
(initialize_sizetype): New declaration.
(enum size_type_kind): New type.
(struct sizetype_tab): Deleted.
(sizetype_tab): Now array; adjust sizetype macros.
(size_diffop, size_int_type_wide): New functions.
(size_int_wide): Change number of args and type; access macros changed.
(ssize_int, sbitsize_int): New macros.
* config/i960/i960.h (ROUND_TYPE_SIZE): Use size_int.
(ROUND_TYPE_SIZE_UNIT): New macro.
* ch/actions.c (chill_convert_for_assignment): Don't use size_binop
for things that aren't sizes.
(expand_varying_length_assignment): Likewise.
* ch/convert.c (digest_array_tuple, convert): Likewise.
* ch/typeck.c (build_chill_slice, smash_dummy_type): Likewise.
(build_chill_slice_with_range): Likewise.
(build_chill_slice_with_length): Likewise.
(build_array_from_set): Adjust types for size_binop.
* ch/expr.c (build_concat_expr, build_chill_repetition_op): Likewise.
(build_chill_sizeof): Use TYPE_SIZE_UNIT.
* ch/tree.c (build_string_type): Pass proper type to size_binop.
* cp/class.c (dfs_build_vtable_offset_vtbl_entries): Don't use
size_binop on things that are not sizes; ssize_binop deleted.
Call size_diffop when appropriate.
(dfs_build_vcall_offset_vtbl_entries): Likewise.
(build_primary_vtable, build_secondary_vtable): Likewise.
(dfs_set_offset_for_unshared_vbases, dfs_modify_vtables): Likewise.
Variable I is HOST_WIDE_INT.
(get_vfield_offset): Pass proper types to size_binop.
(size_extra_vtbl_entries, layout_virtual_bases): Likewise.
(finish_struct_1): Likewise.
(skip_rtti_stuff): Arg N is now pointer to signed.
(layout_class_type): Use size_zero_node.
* cp/cp-tree.h (skip_rtti_stuff): Arg N is pointer to signed.
* cp/cvt.c (cp_convert_to_pointer): Pass proper types to size_binop.
* cp/decl.c (complete_arry_type): Pass proper types to size_binop.
(xref_basetypes): BINFO_OFFSET is sizetype.
* cp/error.c (dump_expr): Don't use size_binop non-sizes.
* cp/expr.c (cplus_expand_constant): Pass proper types to size_binop.
* cp/init.c (construct_virtual_bases): Fix type error.
(build_vec_delete_1): Pass proper type to size_binop and don't
fold result.
* cp/lex.c (cp_make_lang_type): BINFO_OFFSET is sizetype.
* cp/rtti.c (get_base_offset): Pass proper type to size_binop.
* cp/search.c (dfs_find_vbases): Fix type error.
(expand_upcast_fixups): Arg to skip_rtti_stuff is pointer to signed.
(dfs_get_vbase_types): BINFO_OFFSET is sizetype.
* cp/tree.c (debug_binfo): Variable N is signed.
Use HOST_WIDE_INT_PRINT_DEC.
* cp/typeck.c (comptypes): sizetype is same as equivalent integer type.
(c_sizeof, c_sizeof_nowarn, expr_sizeof): Use TYPE_SIZE_UNIT,
size_one_node and size_zero_node.
(c_alignof): Use size_one_node.
(build_component_addr): Pass proper types to size_binop.
(expand_ptrmemfunc_cst): Don't use size_binop on non-sizes.
* f/com.c (ffecom_arrayref_): Convert args to size_binop to proper
type.
(ffecom_tree_canonize_ptr_): Don't use size_binop for non-sizes.
(ffecom_tree_canonize_ref_): Likewise.
(type_for_mode): Handle TImode.
* f/ste.c (ffeste_io_dofio_, ffeste_io_douio_): Use TYPE_SIZE_UNIT.
(ffeste_io_ciclist_): Likewise.
* java/expr.c (build_java_ret): Pass proper type to size_binop.
From-SVN: r32225
* c-common.c (decl_attributes): Set DECL_SIZE_UNIT.
* c-decl.c (duplicate_decls, finish_enum): Likewise.
(finish_decl): Remove -Wlarger-than code from here.
* flags.h (id_clash_len): Now int.
(larger_than_size): Now HOST_WIDE_INT.
* fold-const.c (size_int_wide): No more HIGH parm; NUMBER is signed.
Clean up checking to see if in table.
(make_bit_field_ref): Remove extra parm to bitsize_int.
* ggc-common.c (ggc_mark_tree_children): Mark DECL_SIZE_UNIT.
* print-tree.c (print_node): Print DECL_SIZE_UNIT and TYPE_SIZE_UNIT.
* stmt.c (expand_decl): Use DECL_SIZE_UNIT for stack checking size
and for computing size of decl.
* stor-layout.c (layout_decl): Set DECL_SIZE_UNIT.
Move -Wlarger-than code to here.
(layout_record): Remove extra arg to bitsize_int.
Set TYPE_BINFO_SIZE_UNIT.
(layout_union): Remove extra arg to bitsize_int.
Use proper type for size of QUAL_UNION.
(layout_type): Remove extra arg to bitsize_int.
* toplev.c (id_clash_len): Now int.
(larger_than_size): Now HOST_WIDE_INT.
(decode_W_option): Clean up id-clash and larger-than- cases.
* tree.c (get_identifier, maybe_get_identifier): Remove unneeded casts.
(expr_align, case FUNCTION_DECL): DECL_ALIGN is not defined.
* tree.h (BINFO_SIZE_UNIT, TYPE_BINFO_SIZE_UNIT, DECL_SIZE_UNIT): New.
(struct tree_decl): New field size_unit.
(size_int_wide): No HIGH operand; NUMBER is now signed.
(size_int_2): Deleted.
(size_int, bitsize_int): Don't use it and rework args.
* varasm.c (assemble_variable, output_constructor): Use DECL_SIZE_UNIT.
* ch/decl.c (layout_enum): Set DECL_SIZE_UNIT.
* ch/satisfy.c (safe_satisfy_decl): Likewise.
* cp/class.c (build_primary_vtable, layout_vtable_decl): Likewise.
(avoid_overlap, build_base_field): Likewise.
(build_base_field, build_base_fields, is_empty_class):
Test DECL_SIZE with integer_zero.
(layout_class_type): Set CLASSTYPE_SIZE_UNIT.
* cp/cp-tree.h (struct lang_type): New field size_unit.
(CLASSTYPE_SIZE_UNIT): New macro.
* cp/decl.c (init_decl_processing): Set DECL_SIZE_UNIT.
(cp_finish_decl): Delete -Wlarger-than processing.
* cp/optimize.c (remap_decl): Walk DECL_SIZE_UNIT.
* cp/pt.c (tsubst_decl): Set DECL_SIZE_UNIT.
* cp/tree.c (make_binfo): binfo vector is one entry longer.
(walk_tree): Walk DECL_SIZE_UNIT.
* f/com.c (ffecom_sym_transform): Use DECL_SIZE_UNIT.
(ffecom_transform_common_, ffecom_transform_equiv_): Likewise.
(duplicate_decls): Likewise.
(ffecom_tree_canonize_ptr_): Delete extra arg to bitsize_int.
(finish_decl): Delete -Wlarger-than processing.
* java/class.c (build_class_ref, push_super_field): Set DECL_SIZE_UNIT.
* java/constants.c (build_constants_constructor): Likewise.
From-SVN: r32068
* alias.c: Minor reformatting.
* flow.c: Likewise.
* regs.h: Likewise.
* stor-layout.c: Likewise.
* fold-const.c: Likewise.
(OVERFLOW_SUM_SIGN): Renamed from overflow_sum_sign.
(struct cb_args, const_binop_1, const_binop): Pass type of arg,
not arg itself.
(size_int_wide): Cache nodes even if garbage collecting.
(twoval_comparison_p): Reenable SAVE_EXPR case if operand
of SAVE_EXPR has no side effects.
* cse.c: Move a comment.
* tree.c: Minor reformatting.
(int_size_in_bytes): Return -1 if constant overflows.
* reload.c (combine_reloads): Do nothing if no output reload
From-SVN: r31017
* fold-const.c (extract_muldiv, case {MIN,MAX}_EXPR): Reverse
operation if C is negative.
(extract_muldiv, case SAVE_EXPR): Supresss if arg has side effects.
(extract_muldiv, case {PLUS,MINUS}_EXPR): Don't apply distributive
law for some divisions if constant is negative and change other
divisions to the opposite rounding.
From-SVN: r30714
* fold-const.c (negate_expr, associate_trees, extract_muldiv): New.
(split_tree): Completely rework to make more general.
(make_range, fold): Call negate_expr.
(fold, case NEGATE_EXPR): Simplify -(a-b) is -ffast-math.
(fold, associate): Call new split_tree and associate_trees.
(fold, case MULT_EXPR, case *_{DIV,MOD}_EXPR): Call extract_muldiv.
From-SVN: r30673
Fri Oct 29 15:25:07 1999 Arnaud Charlet <charlet@ACT-Europe.FR>
* gcov.c (DIR_SEPARATOR): Provide default.
(output_data): Add test for MS-DOS format absolute filename.
(fancy_abort): Correct program name.
(open_files): Open all files in binary mode.
* libgcc2.c (__bb_exit_func): Likewise.
* profile.c (init_branch_prob): Specify binary when opening files.
* flags.h (flag_unwind_tables): New decl.
* toplev.c (flag_unwind_table): New definition.
(f_options): Add -funwind-tables.
(decode_g_option): Clarify warning when unknown -g option is given.
(rest_of_compilation): If inside an inlined external function,
pretend we are just being declared.
* dwarf2out.c (dwarf2out_do_frame): Check -funwind_tables.
(dwarf2out_frame_finish): Likewise.
Fri Oct 29 06:32:44 1999 Geoffrey Keating <geoffk@cygnus.com>
* flow.c (propagate_block): When the last reference to a label
before an ADDR_VEC is deleted because the reference is a dead
store, delete the ADDR_VEC.
Fri Oct 29 07:44:26 1999 Vasco Pedro <vp@di.fct.unl.pt>
* fold-const.c (merge_ranges): In not in0, but in1, handle
upper bounds equal like subset case.
Thu Oct 28 19:22:24 1999 Douglas Rupp <rupp@gnat.com>
* dbxout.c (dbxout_parms): Generate a second stabs line for parameters
passed in a register but moved to the stack.
Thu Oct 28 19:12:57 1999 Sam Tardieu <tardieu@act-europe.fr>
* gcc.c (pass_exit_codes, greatest_status): New variables.
(struct option_map): Add entry for "--pass-exit-codes".
(execute): Update greatest_status if error.
(display_help): Add documentation for -pass-exit-codes.
(process_command): Handle -pass-exit-codes.
(main): Look at pass_exit_codes and greatest_status on call to exit.
Thu Oct 28 18:06:50 1999 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* reload.c (find_reloads): Refine test for no input reload
case to not includes reloads emitted after insn.
* function.c (find_temp_slots_from_address): Handle sum involving
a register that points to a temp slot.
(update_temp_slot_address): Make recursive call if both old and
new are PLUS with a common operand.
* calls.c (expand_call): Mark temp slot for result as having
address taken.
* rtlanal.c (reg_referenced_p, case IF_THEN_ELSE): New case.
* gcc.c (process_command): Add standard_exec_prefix with "GCC"
component as well as "BINUTILS".
* integrate.h (copy_rtx_and_substitute): New arg, FOR_LHS.
* integrate.c (copy_rtx_and_substitute): Likewise.
(expand_inline_function, integrate_parm_decls, integrate_decl_tree):
All callers changed.
* unroll.c (inital_reg_note_copy, copy_loop_body): Likewise.
* dbxout.c (dbxout_type, case INTEGER_TYPE_NODE): If can use
gdb extensions, write size of type; also be more consistent
in using references when this is a subtype.
* pa.md (extv, extzv, insv): Use define_expand to reject constant
that is out of range.
* loop.c (unknown_constant_address_altered): New variable.
(prescan_loop): Initialize it.
(note_addr_stored): Set it for RTX_UNCHANGING_P MEM.
(invariant_p, case MEM): Remove handling for volatile and readony;
check new variable if readonly.
(check_dbra_loop): Chdeck unknown_constant_address_altered.
* cse.c (canon_hash, case MEM): Do not record if BLKmode.
(addr_affects_sp_p): Removed from note_mem_written and only
define #ifdef AUTO_INC_DEC.
* alpha.c (input_operand, case ADDRESSOF): Treat as REG.
* regclass.c (record_reg_classes): Properly handle register move
directions.
* varasm.c (initializer_constant_valid_p, case MINUS_EXPR):
Don't think valid if both operands are invalid.
(struct constant_descriptor): New field RTL.
(mark_const_hash_entry): Mark it.
(record_constant{,_rtx}): Initialize it.
(output_constant_def): Allocate RTL in permanent obstack and
save in table.
({record,compare}_constant_1): Modes must match for
CONSTRUCTOR of ARRAY_TYPE.
* c-common.h (initializer_constant_valid_p): Delete decl from here.
* output.h (initializer_constant_valid_p): Move decl to here.
* c-common.c (initializer_constant_valid_p): Delete function from here.
* varasm.c (initializer_constant_valid_p): Move function to here.
* tree.h (STRIP_SIGN_NOPS): New macro.
* fold-const.c (optimize_minmax_comparison): New function.
(invert_truthvalue, case WITH_RECORD_EXPR): New case.
(fold): Use STRIP_SIGN_NOPS instead of STRIP_TYPE_NOPS.
(fold, case EQ_EXPR): Call optimize_minmax_comparison and add
cases with ABS_EXPR, NEGATE_EXPR, PLUS_EXPR, MINUS_EXPR, and
widening conversions.
(fold, case LE_EXPR): Rework changing unsigned to signed comparisons
to look at size of mode, not precision of type; also add missing cases.
(optimize_bit_field_compare, decode_field_reference): Don't try to
optimize COMPONENT_REF of a PLACEHOLDER_EXPR.
* dwarf2out.c (ctype.h): Include.
(dwarf2out_set_demangle_name_func): New function.
(size_of_line_info): Deleted.
(output_line_info): Compute size of line info table from difference
of labels.
(base_type_die, add_name_attribute): Call demangle function, if any.
(field_byte_offset): Use bits per word for variable length fields.
(gen_array_type_die): Add array name.
(gen_subprogram_die): Ignore DECL_INLINE if -fno-inline.
(dwarf2out_add_library_unit_info): New function.
* explow.c (set_stack_check_libfunc): New function.
(stack_check_libfunc): New static variable.
(probe_stack_range): Allow front-end to set up a libfunc to call.
* combine.c (simplify_comparison): When making comparison in wider
mode, check for having commuted an AND and a SUBREG.
(contains_muldiv): New function.
(try_combine): Call it when dividing a PARALLEL.
(simplify_rtx, case TRUNCATE): Don't remove for umulsi3_highpart.
(simplify_comparison, case ASHIFTRT): Recognize sign-extension of
a PLUS.
(record_value_for_reg): If TEM is a binary operation with two CLOBBERs,
use one of the CLOBBERs instead.
(if_then_else_cond): If comparing against zero, just return thing
being compared.
* optabs.c (expand_abs): If machine has MAX, ABS (x) is MAX (x, -x).
Don't generate shifts and subtract if have conditional arithmetic.
* rtl.h (delete_barrier): New declaration.
* jump.c (jump_optimize): Set up to handle conditional call.
In conditional arithmetic case, handle CALL_INSN followed by a BARRIER.
(delete_barrier): New function.
* rtl.c (read_rtx): Call fatal if bad RTL code; check for bad mode.
* recog.c (nonmemory_operand): Accept ADDRESSOF.
* tree.c (build_type_attribute_variant): Push to obstack of
ttype around type_hash_canon call.
* expr.c (placeholder_list): Move decl to file scope.
(expand_expr): Don't force access to volatile just because its
address is taken.
If ignoring reference operations, just expand the operands.
(expand_expr, case COMPONENT_REF): Propagate
EXPAND_CONST_ADDRESS to recursive call when expanding inner.
Refine test for using bitfield operations vs pointer punning.
(expand_expr, case CONVERT_EXPR): If converting to
BLKmode UNION_TYPE from BLKmode, just return inner object.
Use proper mode in store_field call.
Properly set sizes of object to store and total size in store_field
call for convert to union.
(expand_expr, case ARRAY_REF): If OP0 is in a register, put it in
memory (like for ADDR_EXPR). Also, don't put constant in register if
we'll want it in memory.
(readonly_fields_p): New function.
(expand_expr, case INDIRECT_REF): Call it if LHS.
(expand_assignment): Handle a RESULT_DECL where
DECL_RTL is a PARALLEL.
(do_jump, case WITH_RECORD_EXPR): New case.
(get_inner_reference): Always go inside a CONVERT_EXPR
and NOP_EXPR if both modes are the same.
(store_field): Use bitfield operations if size of bitsize is not same
as size of RHS's type.
Check for bitpos not a multiple of alignment in BLKmode case.
Do block move in largest possible alignment.
(store_constructor): Set BITSIZE to -1 for variable size and properly
in case of array of BLKmode.
(expand_expr_unaligned): New function.
(do_compare_and_jump): Call it.
* mips/iris5.h (SWITCHES_NEED_SPACES): New macro.
* collect2.c (main): Only allow -ofoo if SWITCHES_NEED_SPACES
does not include 'o'.
* function.c (instantiate_virtual_regs_1, case SET): Handle case where
both SET_DEST and SET_SRC reference a virtual register.
(gen_mem_addressof): Copy RTX_UNCHANGING_P from new REG to old REG.
* integrate.c (expand_inline_function): Handle case of setting
virtual stack vars register (from built in setjmp); when parameter
lives in memory, expand virtual_{stack_vars,incoming_args}_rtx early.
(subst_constant): Add new parm, MEMONLY.
(expand_inline_function, integrate_parm_decls): Pass new parm.
(integrate_decl_tree): Likewise.
(copy_rtx_and_substitute, case MEM): Do copy RTX_UNCHANGING_P.
(try_constants): Call subst_constants twice, with MEMONLY 0 and 1.
(copy_rtx_and_substitute, case SET): Add explicit calls to
copy_rtx_and_substitute for both sides.
* stmt.c (expand_asm_operands): Don't use TREE_STRING_LENGTH for
constraints.
(pushcase{,_range}): Convert to NOMINAL_TYPE after checking for
within INDEX_TYPE, instead of before.
(fixup_gotos): Use f->target_rtl, not the next insn,
since latter may be from a later fixup.
(expand_value_return): Correctly convert VAL when promoting function
return; support RETURN_REG being a PARALLEL.
(expand_return): When checking for result in regs and having
cleanup, consider PARALLEL in DECL_RTL as being in regs.
From-SVN: r30299
* fold-const.c (fold): Move bit_rotate code to the EXPR_PLUS case,
falltrought to assocate code.
Convert XOR to OR in code like (a&c1)^(a&c2) where c1 and c2 don't have
bits in common.
* combine.c (simplify_logical): Convert XOR to IOR if operands have
no bits in common; remove XOR to ROTATE conversion.
From-SVN: r29998
* Makefile.in (ggc-simple.o): Depend on varray.h.
(rtl.o): Depend on ggc.h.
(genattrtab.o): Depend on ggc.h.
(print-tree.o): Likewise.
(fold-const.o): Likewise.
* emit-rtl.c (sequence_element_free_list): Remove, and all references.
(make_insn_raw): Don't cache insns when GC'ing.
(emit_insn_before): Likewise.
(emit_insn_after): Likewise.
(emit_insn): Likewise.
(start_sequence): Use xmalloc to allocate the sequence_stack.
(end_sequence): Add free to free it.
(gen_sequence): Don't cache insns when GC'ing.
(clear_emit_caches): Don't use sequence_element_free_list.
(init_emit): Use xcalloc, not xmalloc+bzero.
* fold-const.c (size_int_wide): Kill the cache, when GC'ing.
* function.c (pop_function_context_from): Use free to free the
fixup_var_refs_queue.
(put_reg_into_stack): Allocate it with xmalloc.
* genattrtab.c: Include ggc.h.
(operate_exp): Don't use obstack_free when GC'ing.
(simplify_cond): Likewise.
(simplify_text_exp): Likewise.
(optimize_attrs): Likewise.
* gengentrtl.c (gendef): Use ggc_alloc_rtx to allocate RTL, when
GC'ing.
(gencode): Generate a #include for ggc.h.
* ggc-callbacks.c (ggc_p): Define it to zero.
* ggc-none.c (ggc_p): Likewise.
* ggc-simple.c: Include varray.h.
(ggc_mark_tree_varray): New function.
(ggc_add_tree_varray_root): Likewise.
(ggc_mark_tree_varray_ptr): Likewise.
* ggc.h (ggc_p): Declare.
(varray_head_tag): Likewise.
(ggc_add_tree_varray_root): Declare.
* print-tree.c (print_node): Don't check for TREE_PERMANENT
inconsistencies when GC'ing.
* rtl.c: Include ggc.h.
(rtvec_alloc): Use ggc_alloc_rtvec when GC'ing.
(rtx_alloc): Use ggc_alloc_rtx when GC'ing.
(rtx_free): Don't call obstack_free when GC'ing.
* toplev.c (rest_of_compilation): Call ggc_collect after every
pass, if GC'ing.
* tree.c (push_obstacks): Do nothing, if GC'ing.
(pop_obstacks_nochange): Likewise.
(pop_obstacks): Likewise.
(make_node): Use ggc_alloc_tree when GC'ing.
(copy_node): Likewise.
(get_identifier): Use ggc_alloc_string when GC'ing.
(build_string): Likewise.
(make_tree_vec): Use ggc_alloc_tree when GC'ing.
(tree_cons): Likewise.
(build1): Likewise.
(type_hash_canon): Don't call obstack_free when GC'ing.
Co-Authored-By: Bernd Schmidt <bernds@cygnus.co.uk>
Co-Authored-By: Mark Mitchell <mark@codesourcery.com>
From-SVN: r29125
1999-08-27 00:27 -0700 Zack Weinberg <zack@bitmover.com>
* c-typeck.c (c_expand_start_case): Return immediately if exp
is an ERROR_MARK.
* fold-const.c (operand_equal_p): Return immediately if arg1
or arg0 are ERROR_MARKs.
* stor-layout.c (layout_type [case RECORD_TYPE]): Ignore
fields of type ERROR_MARK when calculating if the record can
go in a register.
From-SVN: r28923
* fold-const.c (fold): Reassociate (+ (+ (* a b) c) (* d e))
as (+ (+ (* a b) (* d e)) c). Factor a common power-of-two
multiplicand out of (+ (* a b) (* c d)).
From-SVN: r28829
* fold-const.c (fold_truthop): Verify that the lhs and rhs are
in the same bit position when optimizing bitfield references
which have the same mask.
From-SVN: r25993
* fold-const.c (make_range): If orig_type is unset, set it as soon
as we know the type. Remove now unnecessary set of orig_type for
conversions.
Co-Authored-By: Jeffrey A Law <law@cygnus.com>
From-SVN: r25959
* fold-const.c (exact_real_inverse): Move variable `float_error'
into the scope where it is used.
(const_binop_1): New static function.
(cb_args): New struct.
(const_binop): Use them in call to `do_float_handler'.
(fold_convert_1): New static function.
(fc_args): New struct.
(fold_convert): Use them in call to `do_float_handler'.
From-SVN: r25776
* c-common.c (declare_function_name): Declare predefinied variable
`__func__'.
* c-decl.c (flag_isoc9x): Set to 1 by default.
(c_decode_option): Handle -std= option. Remove -flang-isoc9x.
(grokdeclarator): Always emit warning about implicit int for ISO C 9x.
* c-parse.in: Allow constructors in ISO C 9x.
Rewrite designator list handling.
Allow [*] parameters.
Don't warn about comma at end of enum definition for ISO C 9x.
* cccp.c (c9x): New variable.
(rest_extension): New variable.
(print_help): Document new -std= option.
(main): Recognize -std= option. Set c9x appropriately.
(create_definition): Recognize ISO C 9x vararg macros.
* gcc.c (default_compilers): Adjust specs for -std options.
(option_map): Add --std.
(display_help): Document -std.
* toplev.c (documented_lang_options): Add -std and remove
-flang-isoc9x.
* c-lex.c (yylex): Recognize hex FP constants and call REAL_VALUE_ATOF
or REAL_VALUE_HTOF based on base of the constants.
* fold-const.c (real_hex_to_f): New function. Replacement function
for hex FP conversion if REAL_ARITHMETIC is not defined.
* real.c (asctoeg): Add handling of hex FP constants.
* real.h: Define REAL_VALUE_HTOF if necessary using ereal_atof or
real_hex_to_f.
Co-Authored-By: Richard Henderson <rth@cygnus.com>
Co-Authored-By: Stephen L Moshier <moshier@world.std.com>
From-SVN: r24049
* Makefile.in (gencheck.o): Depend on gansidecl.h.
* c-common.c (print_char_table): Add missing initializers.
(scan_char_table): Likewise.
(time_char_table): Likewise.
* c-decl.c (c_decode_option): Mark parameter `argc' with
ATTRIBUTE_UNUSED.
(declare_parm_level): Mark parameter `definition_flag' with
ATTRIBUTE_UNUSED.
* c-lex.c (readescape): Use `(unsigned)1' in shift.
(yylex): Likewise. Cast `sizeof' to an (int) when comparing
against one.
* calls.c (store_one_arg): Remove unused parameter `fndecl'. All
callers changed.
(emit_call_1): Mark parameters `fndecl' and `funtype' with
ATTRIBUTE_UNUSED.
(expand_call): Cast result of MIN() to (unsigned int) when
comparing against an unsigned value.
* cccp.c (pcfinclude): Remove unused parameter `limit'. All
callers changed.
(make_definition): Remove unused parameter `op'. All callers
changed.
(create_definition): Cast REST_EXTENSION_LENGTH to (long) when
comparing against the result of pointer arithmetic.
* config/mips/mips.h (FUNCTION_ARG_BOUNDARY): Cast to (unsigned)
when comparing against one.
* dwarf2out.c (dwarf2out_frame_debug): Cast REGNO() and
HARD_FRAME_POINTER_REGNUM to (unsigned) when comparing against
one.
(output_die): Move variable `i' into the scope in which it is
used. Change its type to `unsigned'.
(output_die): Cast the result of `strlen' to (int) when passing it
to ASM_OUTPUT_ASCII().
(output_pubnames): Likewise.
(output_line_info): Likewise.
* emit-rtl.c (global_rtl): Add missing initializers.
* explow.c (promote_mode): Mark parameter `for_call' with
ATTRIBUTE_UNUSED.
* expmed.c (expand_shift): Cast the result of GET_MODE_BITSIZE to
`unsigned HOST_WIDE_INT' when comparing against one.
(synth_mult): Change type of variable `cost' to int.
(emit_store_flag): Use `(unsigned HOST_WIDE_INT) 1' in shift.
* expr.c (copy_blkmode_from_reg): Cast BITS_PER_WORD to (unsigned)
when comparing against one.
(get_inner_reference): Change variable `alignment' to unsigned.
(expand_expr): Cast the result of GET_MODE_ALIGNMENT to (unsigned
int) when comparing against one.
(expand_builtin_setjmp): Change type of variable `i' to size_t.
* fold-const.c (div_and_round_double): Cast BASE to
(HOST_WIDE_INT) when comparing against one.
* gencheck.c: Include gansidecl.h.
(main): Mark parameter `argv' with ATTRIBUTE_UNUSED.
* optabs.c (gen_cond_trap): Mark parameters `code', `op2' and
`tcode' with ATTRIBUTE_UNUSED.
* real.c (edivm): Cast constant value to (unsigned long) in
expression compared against an unsigned value.
* stmt.c (expand_return): Cast BITS_PER_WORD to (unsigned) when
comparing against one.
(expand_end_case): Cast CASE_VALUES_THRESHOLD to (unsigned int)
when comparing against one.
* stor-layout.c (mode_for_size): Cast MAX_FIXED_MODE_SIZE to
(unsigned int) when comparing against one. Likewise for
GET_MODE_BITSIZE.
(smallest_mode_for_size): Likewise.
(save_storage_status): Mark parameter `p' with ATTRIBUTE_UNUSED.
(restore_storage_status): Likewise.
* toplev.c (debug_args): Add missing initializer.
(f_options): Spelling correction. Add missing initializers.
(documented_lang_options): Likewise.
(debug_end_source_file): Mark parameter `lineno' with
ATTRIBUTE_UNUSED.
* tree.c (valid_machine_attribute): Mark parameters `attr_args',
`decl' and `type' with ATTRIBUTE_UNUSED.
* varasm.c (decode_reg_name): Cast `sizeof' expression to (int)
when comparing against one.
(assemble_variable): Mark parameter `top_level' with
ATTRIBUTE_UNUSED.
(assemble_external_libcall): Mark parameter `fun' with
ATTRIBUTE_UNUSED.
(output_constant_pool): Mark parameters `fnname' and `fndecl' with
ATTRIBUTE_UNUSED.
From-SVN: r23054
* Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.
* cplus-dem.c: Delete.
* Makefile.in (fold-const.o): depend on $(RTL_H).
* fold-const.c: Include rtl.h to get the prototype for
`set_identifier_local_value'.
* loop.c (express_from_1): Remove unused variable `tmp'.
(combine_givs): cast the first argument of bzero to char *.
* toplev.c (display_help): Remove unused variable `looking_for_start'.
Co-Authored-By: Jeffrey A Law <law@cygnus.com>
From-SVN: r21785
* expr.c (safe_from_p): Change code to ERROR_MARK only when not
accessing nodes.
* toplev.c (display_help): Add braces to shut up warnings.
* fold-const.c (non_lvalue): Don't deal with null pointer
constants here.
(fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
From-SVN: r21698
* loop.h (struct induction): Add no_const_addval.
* loop.c (the_movables, reg_address_cost): New variables.
(init_loop): Init reg_address_cost.
(loop_optimize): Call end_alias_analysis.
(scan_loop): Init the_movables.
(record_giv): Init induction->no_const_addval.
(basic_induction_var) [PLUS]: Use rtx_equal_p instead of ==.
[REG]: Rearrange loop search test to catch more cases.
(general_induction_var): Return success not benefit; take an extra
argument for that. Change all callers.
(simplify_giv_expr) [PLUS]: Always combine invariants. Use sge_plus.
[MULT]: Use rtx_equal_p instead of ==. Combine simple invariants.
[default]: Search the_movables for additional combinations.
(sge_plus_constant, sge_plus): New functions.
(express_from_1): New function.
(express_from): Always define. Rewrite using express_from_1.
(combine_givs_p): Handle more cases. Ignore address cost.
(cmp_combine_givs_stats): New function.
(combine_givs_used_once, combine_givs_benefit_from): New functions.
(combine_givs): Rewrite to do best-fit combination.
* fold-const.c (operand_equal_p): Handle RTL_EXPR.
(fold): Do a complete (A*C)+(B*C) association check.
From-SVN: r21263
* c-common.c (truthvalue_conversion): Protect side effects in the
expression when splitting a complex value.
* fold-const.c (fold): Likewise.
From-SVN: r20580
* gencheck.c: Remove redundant stdio.h include. Add a definition
of xmalloc for when we are forced to link with alloca.o.
* reload1.c (reload_reg_free_for_value_p): Use `(unsigned)1'
instead of `1U'.
* fold-const.c (constant_boolean_node): Make definition static to
match the prototype.
From-SVN: r20261
* fold-const.c (fold, case EQ_EXPR): When folding VAR++ == CONST
or VAR-- == CONST construct a proper mask if VAR is a bitfield.
Cope with CONST being out of range for the bitfield.
From-SVN: r20198
* tree.h (sizetype_tab[2], sbitsizetype, ubitsizetype): Merge all
of these into a single struct, with additional [us]sizetype entries.
* stor-layout.c (set_sizetype): Initialize [us]sizetype.
* fold-const.c (size_int_wide): Don't rely on sizetype_tab being
an array.
From-SVN: r18994
* varasm.c (make_decl_rtl): Update the DECL_ASSEMBLER_NAME for a
entity in a local scope.
* fold-const.c (fold): Call truthvalue_conversion for values which
are folded to boolean type.
From-SVN: r18929
Wed Mar 18 13:46:07 1998 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* fold-const.c (operand_equal_for_comparison_p): See if equal
when nop conversions are removed.
From-SVN: r18672
* fold-const.c: Include "system.h" to get stdlib.h and stdio.h.
(lshift_double): Add parentheses around + or - inside shift.
(rshift_double): Likewise.
(size_int_wide): Explicitly set type of `bit_p' to `int'.
* Makefile.in (fold-const.o): Depend on system.h.
From-SVN: r18057
* tree.c (first_rtl_op): New fn.
(unsave_expr_now): Use it.
* print-tree.c (print_node): Likewise.
* tree.c (has_cleanups): New fn.
* fold-const.c (fold, case CLEANUP_POINT_EXPR): Use it. Be more
conservative about pushing the cleanup point down.
* tree.h: Declare them.
From-SVN: r18023
* expr.c (get_inner_reference): Use sbitsizetype for type sizes.
* fold-const.c (size_int): Replace with
(size_int_wide).
(make_bit_field_ref): Use bitsize_int for bit position.
* stor-layout.c (sizetype): Delete.
(sizetype_tab, sbitsizetype, ubitsizetype): Declare.
(layout_record, layout_union, layout_type):
Use bitsize_int for bit size.
(set_sizetype): New function.
(make_signed_type, make_unsigned_type): Use it.
* c-decl.c (init_decl_processing): Likewise.
* tree.h (size_int): Don't delcare, #define.
(size_int_wide, sizetype_tab, sbitsize, ubitsize): Declare.
(set_sizetype): Declare.
(bitsize_int, size_int_2, BITS_PER_UNIT_LOG, sizetype, bitsizetype):
Define.
* c-typeck.c (c_sizeof, c_sizeof_nowarn, c_size_in_bytes):
Convert result to sizetype.
(really_start_incremental_init, push_init_level):
Set type of constructor_bit_index to sbitsizetype.
(push_init_level): Use unsigned arithmetic to determine padding.
(output_init_element): Likewise.
From-SVN: r17577
