2004-02-11 Uros Bizjak <uros@kss-loka.si>
* optabs.h (enum optab_index): Add new OTI_log10 and OTI_log2.
(log10_optab, log2_optab): Define corresponding macros.
* optabs.c (init_optabs): Initialize log10_optab and log2_optab.
* genopinit.c (optabs): Implement log10_optab and log2_optab
using log10?f2 and log2?f2 patterns.
* builtins.c (expand_builtin_mathfn): Handle BUILT_IN_LOG10{,F,L}
using log10_optab, and BUILT_IN_LOG2{,F,L} using log2_optab.
(expand_builtin): Expand BUILT_IN_LOG10{,F,L} and BUILT_IN_LOG2{,F,L}
using expand_builtin_mathfn if flag_unsafe_math_optimizations is set.
* config/i386/i386.md (log10sf2, log10df2, log10xf2, log2sf2,
log2df2, log2xf2): New patterns to implement log10, log10f, log10l,
log2, log2f and log2l built-ins as inline x87 intrinsics.
* gcc.dg/builtins-33.c: New test.
From-SVN: r77675
* builtins.c (expand_builtin_signbit): Use extract_bit_field instead
of gen_highpart or gen_lowpart when the floating point format is
wider than the result mode.
Co-Authored-By: Ulrich Weigand <uweigand@de.ibm.com>
From-SVN: r77439
* builtins.def (BUILT_IN_SIGNBIT, BUILT_IN_SIGNBITF,
BUILT_IN_SIGNBITL): New GCC builtins.
* builtins.c (expand_builtin_signbit): New function to RTL expand
calls to signbit, signbitf and signbitl as inline intrinsics.
(expand_builtin): Call expand_builtin_signbit for BUILT_IN_SIGNBIT*.
(fold_builtin_signbit): New function to perform constant folding
of signbit, signbitf and signbitl.
(fold_builtin): Call fold_builtin_signbit for BUILT_IN_SIGNBIT*.
* doc/extend.texi: Document new signbit{,f,l} builtins.
* gcc.dg/builtins-1.c: Also test for __builtin_signbit{,f,l}.
* gcc.dg/builtins-31.c: New testcase.
* gcc.dg/builtins-32.c: New testcase.
From-SVN: r77070
* real.c (real_floor, real_ceil): Tweak to allow input and output
arguments to overlap.
(real_round): New function to implement round(3m) semantics.
* real.h (real_round): Prototype here.
* builtins.c (fold_builtin_round): New function to constant fold
round, roundf and roundl.
(fold_builtin): Call fold_builtin_round for BUILT_IN_ROUND{,F,L}.
* gcc.dg/builtins-29.c: New test case.
From-SVN: r76428
* builtins.c (expand_builtin_expect_jump): Simplify logic. Handle
conditional jumps that drop through to unconditional jumps or the
end of the sequence.
From-SVN: r75780
PR middle-end/13392
* builtins.c (expand_builtin_expect_jump): Handle conditional jumps
to drop through label. Don't fall back to SCC even when conditional
jump has not been found.
* g++.dg/opt/expect2.C: New test.
From-SVN: r75684
PR c++/13239
* builtins.c (expand_builtin_expect_jump): Update
TREE_VALUE (arglist) if unsave_expr_now langhook
created a new tree.
* g++.dg/opt/expect1.C: New test.
From-SVN: r74832
PR middle-end/11151
* function.h (struct function): New field 'x_naked_return_label'.
* function.c (free_after_compilation): Set it to NULL.
(expand_function_end): Emit 'naked_return_label' if it exists.
* rtl.h (expand_naked_return): Declare.
* stmt.c (expand_naked_return): New function to generate a
jump to 'naked_return_label'.
* builtins.c (expand_builtin_return): Call expand_naked_return
instead of expand_null_return.
* config/sparc/sparc.md (untyped_return): Likewise.
From-SVN: r74312
PR middle-end/8028
PR middle-end/9890
PR middle-end/11151
PR middle-end/12210
PR middle-end/12503
PR middle-end/12692
* builtins.c (expand_builtin_apply): Use virtual_outgoing_args_rtx
as the base address to copy the memory arguments to.
From-SVN: r73976
* builtins.c (fold_builtin_memcpy, fold_builtin_mempcpy,
fold_builtin_memmove, fold_builtin_strcpy, fold_builtin_strncpy,
fold_builtin_memcmp, fold_builtin_strcmp, fold_builtin_strncmp):
New functions.
(expand_builtin_memcpy): Use integer_zerop instead of testing
host_integerp and tree_low_cst directly. Move misapplied hunk
for optimization wher SRC and DEST point to the same location.
(expand_builtin_mempcpy): From here.
(expand_builtin_memmove): Use integer_zerop instead of testing
host_integerp and tree_low_cst_directly.
(expand_builtin_memset): Likewise.
(expand_builtin_memcmp): Likewise (and for integer_onep).
(expand_builtin_strncmp): Likewise.
(fold_builtin): Call the appropriate fold_builtin_foo functions
to optimize memcpy, mempcpy, memmove, strcpy, strncpy, memcmp,
strcmp and strncmp.
From-SVN: r72547
* builtins.c (expand_builtin_strcmp): Defend against the possibility
that gen_cmpstrsi may fail: Stabilize the argument list against
re-evaluation and expand the library call directly using this saved
argument list if a cmpstrsi sequence can't be generated.
(expand_builtin_strncmp): Likewise.
* config/i386/i386.md (cmpstrsi, movstrsi): Disable with -Os.
* gcc.c-torture/execute/string-opt-8.c: Don't test optimizations
that inline strncmp as cmpstrsi on i386 when compiled with -Os.
From-SVN: r72380
* builtins.c (expand_builtin_memcpy): Optimize case when the two
pointer arguments are the equal, non-volatile and side-effect free.
(expand_builtin_mempcpy): Likewise.
(expand_builtin_memmove): Likewise.
(expand_builtin_strcpy): Likewise.
(expand_builtin_memcmp): Likewise.
(expand_builtin_strcmp): Likewise.
(expand_builtin_strncmp): Likewise.
* gcc.c-torture/execute/string-opt-18.c: New testcase.
From-SVN: r72335
* builtins.c (builtin_mathfn_code): Generalize to check whether
the call is to any built-in function by comparing the call's
argument list against the builtin decl's function type.
From-SVN: r72327
* target.h (init_libfuncs): New hook.
* target-def.h: Default TARGET_INIT_BUILTINS and
TARGET_INIT_LIBFUNCS to hook_void_void. Add
TARGET_INIT_LIBFUNCS to TARGET_INITIALIZER.
* builtins.c (default_init_builtins): Delete.
* expr.h (default_init_builtins): Delete prototype.
* doc/tm.texi: Document TARGET_INIT_LIBFUNCS and US_SOFTWARE_GOFAST.
Tweak documentation of TARGET_FLOAT_LIB_COMPARE_RETURNS_BOOL.
Remove documentation of INIT_TARGET_OPTABS, MULSI3_LIBCALL,
DIVSI3_LIBCALL, UDIVSI3_LIBCALL, MODSI3_LIBCALL, UMODSI3_LIBCALL,
MULDI3_LIBCALL, DIVDI3_LIBCALL, UDIVDI3_LIBCALL, MODDI3_LIBCALL,
and UMODDI3_LIBCALL,
* Makefile.in (optabs.o): Depends on target.h.
* defaults.h: Provide default for FLOAT_LIB_COMPARE_RETURNS_BOOL.
* optabs.c: Include target.h.
(prepare_float_lib_cmp): No need for #ifdef around use of
FLOAT_LIB_COMPARE_RETURNS_BOOL.
(set_optab_libfunc): New function.
(init_optabs): Delete use of all *_LIBCALL defines.
Call targetm.init_libfuncs not INIT_TARGET_OPTABS.
* optabs.h: Prototype set_optab_libfunc.
* config.gcc: Remove all references to pa/long_double.h,
ia64/hpux_longdouble.h, and gofast.h.
(mips-*-*): When --enable-gofast, just add US_SOFTWARE_GOFAST
to tm_defines; don't set INIT_SUBTARGET_OPTABS or change tm_file.
* config/alpha/alpha.c, config/c4x/c4x.c, config/cris/cris.c
* config/frv/frv.c, config/h8300/h8300.c, config/i860/i860.c
* config/ia64/ia64.c, config/ip2k/ip2k.c, config/m68hc11/m68hc11.c
* config/mips/mips.c, config/pa/pa.c, config/rs6000/rs6000.c
* config/sparc/sparc.c, config/vax/vax.c:
Provide a definition for TARGET_INIT_LIBFUNCS. Where
necessary, include optabs.h, libfuncs.h, and/or config/gofast.h.
* config/alpha/unicosmk.h, config/alpha/vms.h, config/c4x/c4x.h
* config/avr/avr.h, config/cris/cris.h, config/frv/frv.h
* config/h8300/h8300.h, config/i860/i860.h, config/ip2k/ip2k.h
* config/iq2000/iq2000.h, config/m68hc11/m68hc11.h, config/mips/mips.h
* config/rs6000/aix.h, config/rs6000/sysv4.h, config/sparc/elf.h
* config/sparc/lite.h, config/sparc/netbsd-elf.h, config/sparc/sol2.h
* config/sparc/sparc.h, config/v850/v850.h, config/vax/vax.h
* config/vax/elf.h: Don't define or use INIT_TARGET_OPTABS,
INIT_SUBTARGET_OPTABS, or any *_LIBCALL macros.
* config/ia64/hpux.h: Redefine INTEL_EXTENDED_IEEE_FORMAT to 0.
Set TARGET_INIT_LIBFUNCS and FLOAT_LIB_COMPARE_RETURNS_BOOL here.
* config/pa/pa-hpux.h: Define LONG_DOUBLE_TYPE_SIZE,
HPUX_LONG_DOUBLE_LIBRARY, and FLOAT_LIB_COMPARE_RETURNS_BOOL here.
* config/ia64/hpux_longdouble.h, config/pa/long_double.h: Delete.
* config/rs6000/xcoff.h: Don't define RS6000_ITRUNC nor RS6000_UITRUNC.
* config/sparc/sparc.h: Default SUN_CONVERSION_LIBFUNCS and
SUN_INTEGER_MULTIPLY_64 to 0.
* config/sparc/sol2.h: Redefine SUN_CONVERSION_LIBFUNCS and
SUN_INTEGER_MULTIPLY_64 to 1.
* config/sparc/elf.h: Redefine SUN_CONVERSION_LIBFUNCS and
SUN_INTEGER_MULTIPLY_64 to 0.
* config/sparc/lite.h, config/sparc/liteelf.h, config/sparc/sp86x-elf.h:
Define US_SOFTWARE_GOFAST.
* config/vax/vax.h: Default TARGET_ELF to 0.
* config/vax/elf.h: Redefine TARGET_ELF to 1.
* config/gofast.h: Don't define any macros here. Provide one
static function, gofast_maybe_init_libfuncs, which does what
INIT_GOFAST_LIBFUNCS used to do but only if US_SOFTWARE_GOFAST
is already defined. Do not clear negation libfuncs. Do
not mess with HFmode, XFmode, or TFmode libfuncs.
* config/avr/avr.c (avr_init_once): #if 0 out; mark FIXME.
From-SVN: r72009
* builtins.c (fold_builtin_logarithm): if N can't be truncated to
MODE exactly, then only convert logN(N) -> 1.0 if
flag_unsafe_math_optimizations is set.
From-SVN: r71322
* builtins.c (real_dconstp, fold_builtin_logarithm,
fold_builtin_exponent): New, split out from fold_builtin. Also
generalize to add log2, log10, exp2 and exp10/pow10 equivalents.
* emit-rtl.c (dconst3, dconst10, dconstthird): New.
(init_emit_once): Initialize new dconsts, use ARRAY_SIZE in lieu
of hardcoded array size.
* fold-const.c (fold): Add cases for exp2, exp10 and pow10.
(tree_expr_nonnegative_p): Likewise.
* real.h (dconst3, dconst10, dconstthird): New.
testsuite:
* gcc.dg/torture/builtin-explog-1.c: New testcase.
From-SVN: r71252
* targhooks.c: New file.
* targhooks.h: New file.
* Makefile.in: Add targhooks.o support.
(function.o): Depend on$(TARGET_H).
(stmt.o): Likewise.
(combine.o): Depend on $(TREE_H) and $(TARGET_H).
* builtins.c (apply_args_size, expand_builtin_apply_args_1,
expand_builtin_apply): Convert to calls.struct_value_rtx hook.
(expand_builtin_saveregs): Convert to
calls.expand_builtin_saveregs hook.
* c-decl.c (start_decl): Handle new calls.promote_prototypes hook
here, instead of ...
(get_parm_info) ... here.
(store_parm_decls_oldstyle): Convert to calls.promote_prototypes
hook.
(finish_function): Handle calls.promote_prototypes hook here too.
* c-typeck.c (convert_arguments): Convert to
calls.promote_prototypes hook.
(c_convert_parm_for_inlining): Likewise.
* calls.c (initialize_argument_information): Convert to
calls.promote_function_args hook.
(expand_call): Convert to calls.struct_value_rtx,
calls.strict_argument_naming,
calls.pretend_outgoing_varargs_named, and
calls.promote_function_return hooks. Pass fndecl to
aggregate_value_p. Initialize CUMULATIVE_ARGS before calling
hooks, so they can use that.
(emit_library_call_value_1): Likewise.
* combine.c (setup_incoming_promotions): Convert to
calls.promote_function_args hook.
* emit-rtl.c: Convert to calls.struct_value_rtx hook.
* expr.c (expand_assignment): Pass call to aggregate_value_p.
(expand_expr): Likewise.
* expr.h: Remove support for SETUP_INCOMING_VARARGS,
STRICT_ARGUMENT_NAMING, PRETEND_OUTGOING_VARARGS_NAMED,
RETURN_IN_MEMORY macro defaults.
* final.c (profile_function): Convert to calls.struct_value_rtx
hook.
* function.c (aggregate_value_p): Accept function type tree as
second parameter; try to deduce fntype from it. Convert to
calls.return_in_memory hook.
(assign_parms): Convert to calls.setup_incoming_varargs,
calls.strict_argument_naming, calls.promote_function_args,
calls.pretend_outgoing_varargs_named hooks. Pass fndecl to
aggregate_value_p.
(expand_function_start): Likewise. Convert to
calls.struct_value_rtx hook.
(expand_function_end): Convert to calls.promote_function_return hook.
(allocate_struct_function): Pass fndecl to aggregate_value_p.
* hard-reg-set.h: Update comments to new hook names.
* integrate.c (expand_inline_function): Pass fndecl to aggregate_value_p.
* reg-stack.c (stack_result): Likewise.
* rtl.h (struct_value_rtx, struct_value_incoming_rtx): Delete.
* stmt.c (expand_value_return): Convert to
calls.promote_function_return hook.
* target-def.h: Add TARGET_PROMOTE_FUNCTION_ARGS,
TARGET_PROMOTE_FUNCTION_RETURN, TARGET_PROMOTE_PROTOTYPES,
TARGET_STRUCT_VALUE_RTX, TARGET_RETURN_IN_MEMORY,
TARGET_EXPAND_BUILTIN_SAVEREGS, TARGET_SETUP_INCOMING_VARARGS,
TARGET_STRICT_ARGUMENT_NAMING,
TARGET_PRETEND_OUTGOING_VARARGS_NAMED, and TARGET_CALLS.
* target.h: Likewise.
* tree.h (aggregate_value_p): Also takes a tree to deduce function
attributes from (for target hooks).
* doc/tm.texi (PROMOTE_FUNCTION_ARGS, PROMOTE_FUNCTION_RETURN,
PROMOTE_PROTOTYPES, RETURN_IN_MEMORY, STRUCT_VALUE_REGNUM,
STRUCT_VALUE, STRUCT_VALUE_INCOMING_REGNUM, STRUCT_VALUE_INCOMING,
EXPAND_BUILTIN_SAVEREGS, SETUP_INCOMING_VARARGS,
STRICT_ARGUMENT_NAMING, PRETEND_OUTGOING_VARARGS_NAMED): Convert
to hooks.
* config/alpha/alpha.c (alpha_output_mi_thunk_osf): Pass function
to aggregate_value_p.
* config/arm/arm.c (arm_init_cumulative_args,
arm_output_mi_thunk): Likewise.
* config/i386/i386.c (ix86_return_pops_args, x86_this_parameter):
Likewise.
* config/mips/mips.c (mips_save_reg_p, mips_expand_prologue,
mips_can_use_return_insn): Likewise.
* config/rs6000/rs6000.c (rs6000_output_mi_thunk): Likewise.
* config/s390/s390.c (s390_output_mi_thunk): Likewise.
* config/sparc/sparc.c (sparc_output_mi_thunk): Pass function to
aggregate_value_p.
* config/story16/stormy16.c (xstormy16_asm_output_mi_thunk): Pass
function to aggregate_value_p.
* objc/objc-act.c (generate_struct_by_value_array): Pass NULL to
aggregate_value_p.
* config/sh/sh-protos.h (sh_builtin_saveregs): Remove.
(sh_attr_renesas_p, sh_cfun_attr_renesas_p, sh_function_arg,
sh_function_arg_advance, sh_pass_in_reg_p): New. * config/sh/sh.c
(sh_handle_renesas_attribute, sh_promote_prototypes,
sh_struct_value_rtx, sh_return_in_memory, sh_builtin_saveregs,
sh_setup_incoming_varargs, sh_strict_argument_naming,
sh_pretend_outgoing_varargs_named): New decls.
(targetm): Add new hooks.
(calc_live_regs): Save MACL and MACH if the function has the
renesas attribute.
(sh_expand_prologue): Support renesas attribute.
(sh_builtin_saveregs): Make static.
(sh_build_va_list): Support renesas attribute.
(sh_va_start): Likewise.
(sh_va_arg): Likewise.
(sh_promote_prototypes): New.
(sh_function_arg): New, moved from sh.h. Support renesas
attribute.
(sh_function_arg_advance): Likewise.
(sh_return_in_memory): Likewise.
(sh_strict_argument_naming): Likewise.
(sh_pretend_outgoing_varargs_named): Likewise.
(sh_struct_value_rtx): New.
(sh_attribute): Add renesas attribute.
(sh_handle_renesas_attribute): New.
(sh_attr_renesas_p, sh_cfun_attr_renesas_p): New.
(sh_ms_bitfield_layout_p): Support renesas attribute also.
(sh_output_mi_thunk): Pass function to aggregate_value_p. *
config/sh/sh.h (TARGET_SWITCHES): Add -mrenesas as an alias for
-mhitachi.
(STRUCT_VALUE_REGNUM, STRUCT_VALUE, RETURN_IN_MEMORY): Moved to
target hooks.
(sh_args): Add renesas_abi flag.
(INIT_CUMULATIVE_ARGS): Set it. Pass fndecl to aggregate_value_p.
(FUNCTION_ARG_ADVANCE, FUNCTION_ARG): Move to sh.c.
(PASS_IN_REG_P): Support renesas attribute. Pass DF and TF on the
stack for the renesas abi.
(STRICT_ARGUMENT_NAMING, PRETEND_OUTGOING_VARARGS_NAMED,
SETUP_INCOMING_VARARGS, EXPAND_BUILTIN_SAVEREGS,
PROMOTE_PROTOTYPES): Moved to sh.c. * config/sh/sh.md (call): Set
call cookie to indicate renesas calls.
* decl.c (finish_function): Pass fndecl to aggregate_value_p.
* misc.c (default_pass_by_ref): Convert to calls.return_in_memory
hook.
From-SVN: r71048
* builtins.c (expand_builtin_setjmp): Use emit_jump to jump around
the != 0 case, which ensures pending stack adjustments are flushed.
From-SVN: r70958
* builtins.c (expand_builtin_expect_jump): Save pending_stack_adjust
and restore it if returning NULL.
* gcc.dg/20030826-2.c: New test.
From-SVN: r70844
* builtins.c (fold_builtin_bitop): New function to perform constant
folding of ffs, clz, ctz, popcount and parity builtin functions
and their long and long long variants (such as ffsl and ffsll).
(fold_builtin): fold_builtin_bitop when appropriate.
* simplify-rtx.c (simplify_unary_operation): Honor both
CLZ_DEFINED_VALUE_AT_ZERO and CTZ_DEFINED_VALUE_AT_ZERO when
evaluating clz and ctz at compile-time, for operands wider
than HOST_WIDE_INT.
From-SVN: r70806
* builtins.c (expand_builtin_mathfn): Rearrange so that we only
return 0 for invalid argument types. Instead drop through to a
call of expand_call at the bottom of function. If op is SQRT,
try attaching a SQRT rtx as the REQ_EQUAL note of the libcall.
From-SVN: r70792
* builtins.c (expand_builtin): When not optimizing, call the library
function for all builtins that have library functions (except alloca).
From-SVN: r70195
* fold-const.c (fold <MULT_EXPR>): Optimize both x*pow(x,c) and
pow(x,c)*x as pow(x,c+1) for constant values c. Optimize x*x
as pow(x,2.0) when the latter will be expanded back into x*x.
(fold <RDIV_EXPR>): Optimize pow(x,c)/x as pow(x,c-1).
* builtins.c (expand_builtin_pow): Ignore flag_errno_math as
pow can never set errno when used with an integer exponent.
Always use expand_powi when exponent is -1, 0, 1 or 2.
(fold_builtin): Don't rewrite pow(x,2.0) as x*x nor pow(x,-2.0)
as 1.0/(x*x). This avoids unbounded recursion as we now prefer
the pow forms of these expressions.
* gcc.dg/builtins-27.c: New test case.
From-SVN: r70030
* builtins.def (BUILT_IN_PRINTF, BUILT_IN_FPRINTF): Changed from
front-end builtins to normal builtins, using DEF_LIB_BUILTIN.
(BUILT_IN_PRINTF_UNLOCKED, BUILT_IN_FPRINTF_UNLOCKED): Changed
from front-end to normal builtins, using DEF_EXT_LIB_BUILTIN.
(DEF_FRONT_END_LIB_BUILTIN): Delete.
(DEF_EXT_FRONT_END_LIB_BUILTIN): Delete.
(BUILT_IN_FWRITE_UNLOCKED): Wrap long line.
* builtins.c (build_string_literal): New function to construct
a char* pointer to a string literal.
(expand_builtin_fputs): Change 2nd argument from "int ignore" to
"rtx target" to be consistent with other expand_builtin_* functions.
Change 3rd argument from "int unlocked" to "bool unlocked".
(expand_builtin_printf): Rewrite of c_expand_builtin_printf from
c-common.c to avoid front-end dependencies. Optimize printf("")
as a no-op when the result isn't required. Handle embedded NULs
in format string.
(expand_builtin_fprintf): A rewrite of c_expand_builtin_fprintf
from c-common.c to avoid front-end dependencies. Likewise, optimize
fprintf(fp,"") as a no-op when the result isn't required, evaluating
fp for side-effects. Handle embedded NULs in format string.
(expand_builtin_sprintf): Fix typo.
(expand_builtin): Don't expand BUILT_IN_FPRINT{,_UNLOCKED} when not
optimizing. Adjust calls of expand_builtin_fputs to match the API
change. Expand BUILT_IN_PRINTF and BUILT_IN_PRINTF_UNLOCKED using
expand_builtin_printf. Likewise, expand BUILT_IN_FPRINTF_UNLOCKED
and BUILT_IN_FPRINTF using expand_builtin_fprintf.
* c-common.c (is_valid_printf_arglist): Delete.
(c_expand_builtin): Delete.
(c_expand_builtin_printf): Moved to builtins.c. Delete.
(c_expand_builtin_fprintf): Moved to builtins.c. Delete.
(c_expand_expr): No longer treat CALL_EXPRs specially.
(CALLED_AS_BUILT_IN): Delete.
From-SVN: r69760
* real.c (real_trunc, real_floor, real_ceil): New functions
to implement trunc, floor and ceil respectively.
* real.h (real_trunc, real_floor, real_ceil): Prototype here.
* builtins.c (integer_valued_real_p): New function to test if
a floating point expression has an integer valued result.
(fold_trunc_transparent_mathfn): Optimize foo(foo(x)) as
foo(x) where foo is an integer rounding function. Similarly,
optimize foo(bar(x)) as bar(x), and foo((double)(int)x) as
(double)(int)x when both foo and bar are integer rounding
functions and we don't need to honor errno.
(fold_builtin_trunc, fold_builtin_floor, fold_builtin_ceil):
New functions to fold trunc, floor and ceil.
(fold_builtin): Use fold_builtin_trunc to fold BUILT_IN_TRUNC*,
fold_builtin_floor to fold BUILT_IN_FLOOR* and fold_builtin_ceil
to fold BUILT_IN_CEIL*.
* fold-const.c (tree_expr_nonnegative_p): Handle FLOAT_EXPR and
the remaining integer rounding functions.
* gcc.dg/builtins-25.c: New testcase.
* gcc.dg/builtins-26.c: New testcase.
From-SVN: r68903
* builtins.c (expand_builtin_sprintf): Use c_getstr and strlen to
obtain the format string instead of using TREE_STRING_POINTER and
TREE_STRING_LENGTH. Only optimize sprintf(dst,"%s",src) when the
return value is unused or the length of src is a known constant.
* gcc.c-torture/execute/string-opt-16.c: Remove test for disabled
sprintf(dst,"%s",src) optimization.
* gcc.c-torture/execute/20030626-1.c: New test case.
* gcc.c-torture/execute/20030626-2.c: New test case.
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r68555
* builtins.c (expand_builtin_mathfn): Always stabilize the argument
list against re-evaluation. If expand_unop fails, call expand_call
with the stabilized argument list rather than return NULL_RTX.
(expand_builtin_mathfn2): Likewise, always stabilize the argument
list, and call expand_call ourselves if expand_binop fails.
Co-Authored-By: Richard Henderson <rth@redhat.com>
From-SVN: r68526
PR optimization/11311
* builtins.c (powi_cost): Fix typo. The number of multiplications
required is the number to reduce the argument, result, plus the
cost of calculating the residual, val [not n, the original value].
* gcc.c-torture/compile/20030624-1.c: New test case.
From-SVN: r68452
* builtins.c (expand_builtin): Use expand_builtin_pow to expand
calls for pow, powf, powl and their __builtin_ variants.
(expand_builtin_pow): If the second argument is a constant
integer and compiling with -ffast-math, use expand_powi to
generate RTL if powi_cost is less than POWI_MAX_MULTS.
(powi_cost): New function to return the number of multiplications
necessary to evaluate an Nth power, for integer constant N.
(expand_powi): New function to expand the RTL for evaluating
the Nth power of a floating point value, for integer constant N.
* doc/tm.texi (POWI_MAX_MULTS): Document new target macro.
* gcc.dg/builtins-24.c: New test case.
From-SVN: r68401
* builtins.c (expand_builtin_mathfn_2): Use tree_cons to build
up the stabilized argument list, not build_tree_list.
(expand_builtin_strcpy): Construct new argument list manually
instead of using chainon to modify the original argument list.
(expand_builtin_stpcpy): Construct new argument list manually
instead of using copy_list and chainon.
(expand_builtin_sprintf): New function. Optimize calls to
sprintf when the format is "%s" or doesn't contain a '%'.
(expand_builtin): Expand BUILT_IN_SPRINTF using the new function
expand_builtin_sprintf.
* gcc.c-torture/execute/string-opt-16.c: New test case.
From-SVN: r68355
* builtins.c (expand_errno_check): Assume that flag_errno_math
and HONOR_NANS have been tested before calling here. Only try
to set errno ourselves if the decl can't throw an exception.
(expand_builtin_mathfn): Move the code to stabilize the arg
after the main switch, so that that its only done when needed.
BUILT_IN_SQRT{,F,L} doesn't set errno if its arg is nonnegative.
Don't modify the original expr when stabilizing the argument.
(expand_builtin_mathfn_2): Likewise, move the code to stabilize
the args after the main switch, and don't modify the orginal exp.
From-SVN: r68217
* optabs.h (enum optab_index): Add new OTI_tan and OTI_atan.
(tan_optab, atan_optab): Define corresponding macros.
* optabs.c (init_optabs): Initialize tan_optab and atan_optab.
* genopinit.c (optabs): Implement tan_optab and atan_optab
using tan?f2 and atan?f2 patterns.
* builtins.c (expand_builtin_mathfn): Handle BUILT_IN_TAN{,F,L}
using tan_optab, and BUILT_IN_ATAN{,F,L} using atan_optab.
Change the default value of errno_set to false.
(expand_builtin): Expand BUILT_IN_TAN{,F,L} and BUILT_IN_ATAN{,F,L}
using expand_builtin_mathfn.
* config/i386/i386.md (atansf2, atandf2, atanxf2, atantf2): New
expander patterns implemented using existing atan2?f3 patterns.
* gcc.dg/i386-387-5.c: New test case.
* gcc.dg/i386-387-6.c: New test case.
* gcc.dg/builtins-23.c: New test case.
From-SVN: r68013
* alloc-pool.c: Convert to ISO C90 prototypes.
* alloc-pool.h: Likewise.
* alias.c: Likewise.
* attribs.c: Likewise.
* bb-reorder.c: Likewise.
* bitmap.h: Likewise.
* bitmap.c: Likewise.
* builtins.c: Likewise.
* tree.h: Convert prototypes of attribs.c to ISO C90.
* basic-block.h: Convert prototypes of bb-reorder.c to ISO C90.
* rtl.h: Convert prototypes of alias.c and builtins.c to ISO C90.
* expr.h: Convert prototypes of builtins.c to ISO C90.
From-SVN: r67975
* 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 <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
* builtins.c (dconstpi, dconste): New mathematical constants.
(init_builtin_dconsts): New function to initialize dconstpi
and dconste.
(fold_builtin): Optimize exp(1.0) = e. Evaluate exp(x) at
compile time with -ffast-math when x is an integer constant.
Optimize tan(0.0) = 0.0. Optimize atan(0.0) = 0.0,
atan(1.0) = pi/4 and tan(atan(x)) = x with -ffast-math.
* gcc.dg/builtins-2.c: Add tests for tan(atan(x)).
* gcc.dg/builtins-3.c: Add tests for tan(0.0) and atan(0.0).
* gcc.dg/builtins-7.c: Add tests for tan(atan(x)) == x.
* gcc.dg/builtins-17.c: New test case.
* gcc.dg/i386-387-4.c: New test case.
* gcc.c-torture/execute/ieee/mzero4.c: New test case.
From-SVN: r67438
* builtins.def (BUILT_IN_CABS, BUILT_IN_CABSF, BUILT_IN_CABSL):
New builtins representing ISO C99's cabs, cabsf and cabsl.
* builtins.c (expand_builtin_fabs): New function.
(expand_builtin_cabs): New function.
(expand_builtin): Expand BUILT_IN_FABS{,F,L} and BUILT_IN_CABS{,F,L}
using expand_builtin_fabs and expand_builtin_cabs respectively.
* doc/extend.texi: Document new cabs, cabsf and cabsl builtins.
* gcc.dg/builtins-16.c: New test case.
From-SVN: r67368
* builtins.def: Defome atan, atanf, atanl, tan, tanf and tanl
builtin functions (and their __builtin_* variants).
* builtins.c (mathfn_built_in): Handle tan{,f,l} and atan{,f,l}.
(expand_builtin): Don't expand tan{,f,l} or atan{,f,l} when not
optimizing.
* doc/extend.texi: Document new tan and atan builtins, and
their float and long double variants.
* gcc.dg/builtins-1.c: Add tests for tan and atan.
* gcc.dg/builtins-4.c: Add test for fmod.
From-SVN: r67137
PR middle-end/10472
* builtins.c (expand_builtin_memcpy): Call force_operand on
expressions and use simplify_gen_binary to create the addition.
* gcc.c-torture/compile/20030518-1.c: New test case.
Co-Authored-By: Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
Co-Authored-By: Zack Weinberg <zack@codesourcery.com>
From-SVN: r66941
gcc:
* builtins.c (readonly_data_expr): New function.
(expand_builtin_memmove): Optimize any rodata source, not just
strings.
testsuite
gcc.c-torture/execute/string-opt-19.c: Add general rodata tests.
(bcopy): Call memmove.
From-SVN: r66597
* real.c (real_powi): New function to calculate the value of
a real raised to an integer power, i.e. pow(x,n) for int n.
(real_sqrt): Convert to using the faster do_add, do_multiply
and do_divide API for consistency with the rest of real.c.
* real.h (real_powi): Prototype here.
* builtins.c (fold_builtin): Avoid local variable mode when
evaluating sqrt at compile time. Attempt to evaluate pow at
compile-time, by checking for an integral exponent.
* gcc.dg/builtins-14.c: New test case.
From-SVN: r66515
* builtins.c (expand_builtin_mempcpy): New function.
(expand_builtin_stpcpy): Optimize stpcpy whose return value is
ignored into strcpy no matter what arguments it has.
(expand_builtin) <case BUILT_IN_MEMPCPY>: Call
expand_builtin_mempcpy.
* gcc.c-torture/execute/string-opt-18.c (main): Add 3 new tests.
From-SVN: r66498
* builtins.c (expand_builtin_constant_p, expand_builtin_strlen,
expand_builtin_frame_address): Update prototypes.
(expand_builtin_constant_p, expand_builtin_strlen,
expand_builtin_strcpy, expand_builtin_memset,
expand_builtin_bzero, expand_builtin_args_info,
expand_builtin_frame_address): Pass in just the argument(s)
needed, not the entire expression `exp'.
(expand_builtin): Update all calls to these functions.
From-SVN: r66448
* emit-rtl.c (last_call_insn, add_function_usage_to): New functions.
* rtl.h (last_call_insn, add_function_usage_to): New prototypes.
* builtins.c (expand_builtin_apply): Use the new emit-rtl functions.
* calls.c (emit_call_1): Likewise.
(expand_call): For calls initializing constant memory, replace
emission of standalone mem /u clobber with function usage entry.
* expr.c (emit_block_move_via_libcall): Likewise.
* cse.c (count_reg_usage, case EXPR_LIST): New case.
* flow.c (propagate_one_insn): Pass entire operand of
CALL_INSN_FUNCTION_USAGE to mark_used_regs.
* integrate.c (try_constants): For CALL_INSNs, substitute constants
within the FUNCTION_USAGE also.
* loop.c (prescan_loop): Note clobbers of const mem mentioned in
FUNCTION_USAGE lists.
* reload1.c (replace_pseudos_in): Renamed.
(reload): Use it for clobbers surviving until the end of the reload.
From-SVN: r66429
* builtins.c (expand_builtin): Don't expand a pure or const
built-in function if the result will be ignored and none of
its arguments are volatile.
From-SVN: r65843
* builtins.c (fold_builtin): Constant fold expressions as x*0.5
instead of x/2.0. Optimize sqrt(pow(x,y)) as pow(x,y*0.5),
log(pow(x,y)) as y*log(x), pow(exp(x),y) as exp(x*y),
pow(sqrt(x),y) as pow(x,y*0.5) and pow(pow(x,y),z) as pow(x,y*z).
Delete function scope "fcode" variable to avoid shadowing.
* gcc.dg/builtins-9.c: New test case.
* gcc.dg/builtins-10.c: New test case.
From-SVN: r65386
* emit-rtl.c (dconstm2, dconsthalf): New real constants.
(init_emit_once): Initialize dconstm2 and dconsthalf here.
* real.h (dconstm2, dconsthalf): Add prototypes here.
* real.c (real_sqrt): Use dconsthalf rather than local copy.
* builtins.c (fold_builtin): When optimizing sqrt(exp(x)) as
exp(x/2.0) remember to fold the division if possible.
Fold sin(0.0) as 0.0, cos(0.0) as 1.0, pow(x,1.0) as x,
pow(x,-1.0) as 1.0/x, pow(x,2.0) as x*x, pow(x,-2.0) as
1.0/(x*x) and pow(x,0.5) as sqrt(x).
* gcc.dg/builtins-3.c: Add new tests for sin and cos.
* gcc.dg/builtins-7.c: New test case.
* gcc.dg/builtins-8.c: New test case.
From-SVN: r65088
gcc:
* builtins.c (expand_builtin_fputs): When optimizing for size,
don't transform fputs into fwrite.
testsuite:
* gcc.c-torture/execute/stdio-opt-1.c: Adjust test for change to
builtin fputs.
From-SVN: r64771
* builtins.c (expand_builtin_unop): New target_mode operand;
use it to convert the result to the correct mode.
(expand_builtin): Update all callers.
From-SVN: r64545
* 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
* optabs.h (enum optab_index): Add new OTI_pow and OTI_atan2.
(pow_optab, atan2_optab): Define corresponding macros.
* optabs.c (init_optabs): Initialize pow_optab and atan2_optab.
* genopinit.c (optabs): Implement pow_optab and atan2_optab
using pow?f3 and atan2?f3 patterns.
* builtins.c (expand_errno_check): New function to update errno
if necessary, split out from expand_builtin_mathfn.
(expand_builtin_mathfn): Use expand_errno_check.
(expand_builtin_mathfn_2): New function to handle expanding binary
math functions, reusing the code in expand_errno_check.
(expand_builtin): Handle the pow and atan2 math built-ins,
BUILT_IN_{POW,POWF,POWL,ATAN2,ATAN2F,ATAN2L} via the new function
expand_builtin_mathfn_2.
* doc/md.texi: Document new pow?f3 and atan2?f3 patterns.
From-SVN: r62708
* builtin-types.def (BT_FN_FLOAT_FLOAT_FLOAT): New built-in type.
(BT_FN_LONG_DOUBLE_LONG_DOUBLE_LONG_DOUBLE): Likewise.
(BT_FN_DOUBLE_DOUBLE_DOUBLE): Likewise.
* builtins.def: Define pow, powf, powl, atan2, atan2f and atan2l
builtin functions (and their __builtin_* variants).
* builtins.c (mathfn_built_in): Handle missing log{,f,l} cases.
(expand_builtin): Don't expand log{,f,l}, pow{,f,l} or atan2{,f,l}
when not optimizing.
* doc/extend.texi: Document new pow and atan2 builtins, and
their float and long double variants. Realphabetize builtins.
* testsuite/gcc.dg/builtins-4.c: New test case.
From-SVN: r62551
* builtins.c (purge_builtin_constant_p): Scan insn stream
sequentially rather than by basic block.
* function.c (purge_addressof): Simplify test with INSN_P.
From-SVN: r61789
* function.h (struct function): New field calls_constant_p.
(current_function_calls_constant_p): New macro for above.
* function.c (prepare_function_start): Initialize calls_eh_return
and calls_constant_p.
* builtins.c (expand_builtin_constant_p): Set calls_constant_p.
* toplev.c (rest_of_compilation): Only call purge_builtin_constant_p
when the current_function_calls_constant_p.
* integrate.c (expand_inline_function): Set calls_constant_p if
the function being inlined has calls_constant_p set.
From-SVN: r61786
* builtins.c (fold_trunc_transparent_mathfn): New function.
(fold_builtin): Use it.
* convert.c (convert_to_real): Re-enable code to convert
math functions; add support for floor familly functions.
From-SVN: r61764
PR optimization/8423
* cse.c (fold_rtx): Only eliminate a CONSTANT_P_RTX to 1 when
its argument is constant, or 0 if !flag_gcse.
* simplify-rtx.c (simplify_rtx): Convert CONSTANT_P_RTX to 1
if it's argument is constant.
* gcse.c (want_to_gcse_p): Ignore CONSTANT_P_RTX nodes.
(hash_scan_set): Don't record CONSTANT_P_RTX expressions.
(do_local_cprop): Don't propagate CONSTANT_P_RTX constants.
* builtins.c (purge_builtin_constant_p): New function to force
instantiation of any remaining CONSTANT_P_RTX nodes.
* rtl.h (purge_builtin_constant_p): Prototype here.
* toplev.c (rest_of_compilation): Invoke purge_builtin_constant_p
pass after GCSE and before loop.
(flag_gcse): No longer static.
* flags.h (flag_gcse): Prototype here.
From-SVN: r61642
* real.c (real_sqrt): Return a bool result indicating whether
a floating point exception or trap should be raised.
* real.h (real_sqrt): Update function prototype.
* builtins.c (fold_builtin): Only fold non-trapping square
roots unless we're ignoring errno and trapping math.
From-SVN: r61337
* builtins.def: Define new builtin functions exp, expf, expl,
log, logf and logl (and their __builtin_* variants).
* optabs.h (enum optab_index): Add new OTI_exp and OTI_log.
Define exp_optab and log_optab.
* optabs.c (init_optans): Initialize exp_optab and log_optab.
* genopinit.c (optabs): Implement exp_optab and log_optab
using exp?f2 and log?f2 patterns.
* builtins.c (expand_builtin_mathfn): Handle BUILT_IN_EXP*
and BUILT_IN_LOG* using exp_optab and log_optab respectively.
(expand_builtin): Ignore the new builtins (and all cos and
sin variants) when not optimizing. Expand new builtins via
expand_builtin_mathfn when flag_unsafe_math_optimizations.
* doc/extend.texi: Document new exp and log builtins.
* doc/md.texi: Document new exp?f2 and log?f2 patterns
(and previously undocumented cos?f2 and sin?f2 patterns).
From-SVN: r56010
* builtins.c (expand_builtin): Change the default behavior to
only issue an error if the builtin function doesn't have a
fallback library call. Remove several cases handled by the
new default.
From-SVN: r55860
* gcc/explow.c (convert_memory_address): Fix conversion of CONSTs.
Fix permutation of conversion and plus/mult.
* gcc/builtins.c (expand_builtin_memcpy) Ensure return pointer is
ptr_mode and not Pmode when POINTERS_EXTEND_UNSIGNED is defined.
(expand_builtin_strncpy) Ditto.
(expand_builtin_memset) Ditto.
From-SVN: r55679
PR c++/7099
* builtin-attrs.def: Define new attribute lists for use in
builtins.def.
* builtins.def [DEF_BUILTIN]: Modify to take an additional
ATTRS argument, an enumerated value defined in builtin-attrs.def
that represents the attribute list for the builtins. Modify
all builtin functions to pass an appropriate attribute list.
Specify "abort", "exit", "_exit" and "_Exit" builtins here with
their required noreturn attributes.
* tree.h (enum_builtin_function): Ignore the additional parameter
to DEF_BUILTIN.
* builtins.c (built_in_names): Likewise.
* c-common.c: (builtin_function_2): Replace the "int noreturn_p"
argument with a tree representing the functions attribute list.
Pass this "attrs" argument to builtin_function. No longer handle
the noreturn_p processing manually.
(built_in_attributes): Move the definitions from builtin-attrs.def
before c_common_nodes_and_builtins.
(c_common_nodes_and_builtins): Handle the new ATTRS parameter in
DEF_BUILTIN, passing it to both builtin_function and the changed
builtin_function_2.
* doc/extend.texi: Document __builtin_abort, __builtin_exit,
__builtin__exit and __builtin__Exit.
* java/builtins.c (initialize_builtins): Ignore the additional
parameter to DEF_BUILTIN. Handle more C/C++ specific junk in
the builtins.def file.
From-SVN: r55276
2002-06-05 David S. Miller <davem@redhat.com>
Delete SEQUENCE rtl usage outside of reorg and ssa passes.
* rtl.h (gen_sequence, emit_insns, emit_insns_before,
emit_insns_before_scope, emit_insns_after,
emit_insns_after_scope): Delete declaration.
* ada/misc.c (insert_code_for): Use emit_insn* instead of
emit_insns_foo.
* config/alpha/alpha.c (alpha_set_memflags_1): Abort on SEQUENCE.
(alpha_set_memflags): Fix comment.
(set_frame_related_p): Use get_insns instead of gen_sequence.
* config/alpha/alpha.md (setjmp receiver splitter): Avoid
emitting no insns.
* config/arm/arm.c (arm_finalize_pic): Use get_insns instead of
gen_sequence.
(arm_gen_load_multiple, arm_gen_store_multiple): Likewise.
* config/fr30/fr30.c (fr30_move_double): Likewise.
* config/i386/i386.c (ix86_expand_int_movcc, ix86_expand_movstr):
Likewise.
* config/ia64/ia64.c (spill_restore_mem): Likewise.
* config/ia64/ia64.md (conditional move spliiter): Avoid emitting
no insns.
* config/m32r/m32r.c (gen_split_move_double): Use get_insns
instead of gen_sequence.
* config/mips/mips.c (embedded_pic_fnaddr_reg): Likewise.
(mips_expand_prologue, mips16_gp_pseudo_reg): Likewise.
* config/sh/sh.c (sh_need_epilogue): Likewise.
* config/sparc/sparc.md (current_function_calls_alloca, flat): New
attributes.
(setjmp pattern and split): Use them to avoid splitter which emits
no RTL.
* genattrtab.c (main): Emit include of function.h
* config/stormy16/stormy16.c (xstormy16_split_cbranch): Use
get_insns instead of gen_sequence.
* config/cris/cris.c (cris_split_movdx): Likewise.
* emit-rtl.c (emit_insns*): Kill.
(try_split): Expect insn list instead of SEQUENCE.
(make_jump_insn_raw, make_call_insn_raw): Fix comments.
(emit_*insn*): Reimplement to work with INSN lists and PATTERNs.
Make them abort if a SEQUENCE is given and RTL checking is
enabled.
(emit_*_scope): Don't forget to set scope on final insn.
(gen_sequence): Move from here...
* ssa.c (gen_sequence): To here as private function.
* builtins.c (expand_builtin_apply_args): Use emit_insn_foo, fix
comments.
(expand_builtin_return, expand_builtin_mathfn): Likewise.
(expand_builtin_strlen): Use get_insns instead of gen_sequence.
(expand_builtin_saveregs): Use emit_insn_foo, fix comments.
(expand_builtin_expect_jump): Use get_insns and fix comments.
* calls.c (try_to_integrate): Use emit_insn_foo.
(expand_call, emit_library_call_value_1): Likewise.
* expr.c (emit_queue): Handle insn lists instead of SEQUENCE.
(emit_move_insn_1): Use get_insns instead of gen_sequence.
(expand_expr): Use emit_insn_foo.
* cfgrtl.c (commit_one_edge_insertion): Use emit_insn_foo.
* except.c (build_post_landing_pads): Likewise.
* flow.c (attempt_auto_inc): Likewise.
* stmt.c (expand_fixup, fixup_gotos, expand_nl_handler_label,
expand_nl_goto_receivers, expand_decl_cleanup): Likewise.
* function.c (fixup_var_refs_insn): Use get_insns instead of
gen_sequence.
(fixup_var_refs_1): Likewise and expect insn list from gen_foo.
(fixup_memory_subreg): Use get_insns instead of gen_sequence.
(fixup_stack_1, purge_addressof_1, expand_main_function,
get_arg_pointer_save_area): Likewise.
(optimize_bit_field, instantiate_virtual_regs_1, assign_parms,
expand_function_end): Use emit_insn_foo.
(record_insns, keep_stack_depressed): Work with insn list instead
of SEQUENCE, fix comments.
* ifcvt.c (noce_emit_store_flag, noce_try_store_flag,
noce_try_store_flag_constants, noce_try_store_flag_inc,
noce_try_store_flag_mask, noce_emit_cmove, noce_try_cmove_arith,
noce_try_minmax, noce_try_abs): Use emit_insn_foo.
(noce_process_if_block): Use get_insns instead of gen_sequence.
* optabs.c (add_equal_note): Work with insn list, fix comments.
(expand_binop): Expect insn list from GEN_FCN(), use emit_insn_foo.
(expand_unop, expand_complex_abs, expand_unop_insn,
expand_no_conflict_block): Likewise.
(gen_move_insn): Use get_insns instead of gen_sequence.
(gen_cond_trap): Likewise.
* integrate.c (copy_rtx_and_substitute): Likewise.
(emit_initial_value_sets): Use emit_insn_foo.
* reload1.c (emit_output_reload_insns, emit_reload_insns): Likewise.
(fixup_abnormal_edges): Avoid losing REG_NOTES more intelligently
now that RTL generators give insn lists.
* sibcall.c (replace_call_placeholder): Use emit_insn_foo.
* doloop.c (doloop_modify, doloop_modify_runtime): Use get_insns
instead of gen_sequence.
(doloop_optimize): Work with insn lists instead of SEQUENCE rtl.
* explow.c (emit_stack_save, emit_stack_restore): Use get_insns
instead of gen_sequence.
* loop.c (move_movables, emit_prefetch_instructions,
gen_add_mult, check_dbra_loop, gen_load_of_final_value):
Likewise.
(loop_regs_update): Work with insn list instead of SEQUENCE rtl.
(product_cheap_p): Likewise, and add commentary about RTL wastage
here.
* lcm.c (optimize_mode_switching): Use get_insns instead of
gen_sequence.
* profile.c (gen_edge_profiler): Likewise.
* regmove.c (copy_src_to_dest): Likewise.
* reg-stack.c (compensate_edge): Likewise and fix comment.
* gcse.c (process_insert_insn): Likewise.
(insert_insn_end_bb): Work with insn list instead of SEQUENCE rtl.
* jump.c (delete_prior_computation): Update comment.
* genemit.c (gen_expand, gen_split, main): Use get_insns instead
of gen_sequence, update comments to match.
* recog.c (peephole2_optimize): Work with insn lists instead of
SEQUENCE rtl.
* sched-vis.c (print_pattern): Abort on SEQUENCE.
* unroll.c (unroll_loop, find_splittable_givs, final_giv_value):
Use get_insns instead of gen_sequence.
(copy_loop_body): Likewise and don't emit dummy NOTE.
* genrecog.c: Don't mention SEQUENCE rtl in comments.
* combine.c (try_combine): Expect insn lists from split generator.
* reorg.c (relax_delay_slots): Emit SEQUENCE into insn list by
hand.
From-SVN: r54497
* 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
2002-04-23 Roger Sayle <roger@eyesopen.com>
* builtins.c (builtin_memset_gen_str): New function.
(expand_builtin_memset): Optimize the case of constant length, but
unknown value.
testsuite:
* gcc.c-torture/execute/string-opt-17.c: New test case.
* gcc.c-torture/execute/memset-2.c: New test case.
From-SVN: r52662
* 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
