PR c/8083
* c-typeck.c (build_c_cast): Warn about type punning which breaks
type based aliasing.
testsuite:
* gcc.dg/alias-1.c: New test.
From-SVN: r57698
* c-tree.h (skip_evaluation): Move declaration...
* c-common.h: ... here.
* c-typeck.c (build_external_ref): Don't assemble_external nor
mark a tree as used if skip_evaluation is set.
* c-parse.in (typeof): New non-terminal to set skip_evaluation
around TYPEOF.
(typespec_nonreserved_nonattr): Use it.
From-SVN: r56358
* c-common.c (c_sizeof_or_alignof_type): Take a third argument for
complaining.
* c-common.h (c_sizeof): Adjust definition.
(c_alignof): Likewise.
* c-tree.h (c_sizeof_nowarn): Now macro.
* c-typeck.c (c_sizeof_nowarn): Remove definition.
cp/
* cp-tree.h (cxx_sizeof_nowarn): Now a macro.
(cxx_sizeof_or_alignof_type): Take a third argument.
(cxx_sizeof): Adjust definition.
(cxx_alignof): Likewise.
* init.c (build_delete): Use cxx_sizeof_nowarn to reflect reality.
* typeck.c (cxx_sizeof_or_alignof_type): Take a third argument for
complaining.
(c_sizeof_nowarn): Remove definition.
(build_unary_op): Use cxx_sizeof_nowarn.
From-SVN: r55744
2002-07-21 Gabriel Dos Reis <gdr@nerim.net>
Fix PR/7363:
* c-common.c (c_sizeof_or_alignof_type): New function.
(c_alignof): Remove definition.
* c-common.h (c_sizeof, c_alignof): Define as macros.
(c_sizeof_or_alignof_type): Declare.
(my_friendly_assert): Moved from cp/cp-tree.h
* c-typeck.c (c_sizeof): Remove definition.
cp/
2002-07-21 Gabriel Dos Reis <gdr@nerim.net>
Fix PR/7363:
* typeck.c (cxx_sizeof_or_alignof_type): New function.
(c_sizeof): Remove definition.
(expr_sizeof): Use cxx_sizeof.
* decl2.c (build_expr_from_tree): Use cxx_sizeof_or_alignof_type.
* decl.c (finish_destructor_body): Use cxx_sizeof.
* semantics.c (finish_alignof): Likewise.
(finish_alignof): Use cxx_alignof.
* cp-tree.h (cxx_sizeof, cxx_alignof): New macros.
(cxx_sizeof_or_alignof_type): Declare.
(my_friendly_assert): Move to ../c-common.h.
From-SVN: r55678
gcc:
* optabs.c (expand_vector_binop): Don't store using a SUBREG smaller
than UNITS_PER_WORD, unless this is little endian and the first unit
in this word. Let extract_bit_field decide how to load an element.
Force arguments to matching mode.
(expand_vector_unop): Likewise.
* simplify-rtx.c (simplify_subreg): Don't assume that all vectors
consist of word_mode elements.
* c-typeck.c (build_binary_op): Allow vector types for BIT_AND_EXPR,
BIT_ANDTC_EXPR, BIT_IOR_EXPR and BIT_XOR_EXPR.
(build_unary_op): Allow vector types for BIT_NOT_EPR.
* emit-rtl.c (gen_lowpart_common): Use simplify_gen_subreg for
CONST_VECTOR.
* optabs.c (expand_vector_binop): Try to perform operation in
smaller vector modes with same inner size. Add handling of AND, IOR
and XOR. Reject expansion to inner-mode sized scalars when using
OPTAB_DIRECT. Use simplify_gen_subreg on constants.
(expand_vector_unop): Try to perform operation in smaller vector
modes with same inner size. Add handling of one's complement.
When there is no vector negate operation, try a vector subtract
operation. Use simplify_gen_subreg on constants.
* simplify-rtx.c (simplify_subreg): Add capability to convert vector
constants into smaller vectors with same inner mode, and to
integer CONST_DOUBLEs.
gcc/testsuite:
* gcc.c-torture/execute/simd-1.c (main): Also test &, |, ^, ~.
* gcc.c-torture/execute/simd-2.c (main): Likewise.
From-SVN: r55209
2002-06-16 Aldy Hernandez <aldyh@redhat.com>
* gcc.c-torture/execute/simd-1.c: New.
* gcc.dg/simd-1.c: New.
* doc/extend.texi (Vector Extensions): Document that we can
specify simd types not specifically supported by the hardware.
Document that simd types can be used as function arguments.
Document that signness does make a difference in SIMD types.
Misc cleanups and revisions to the "vector extensions" section.
* simplify-rtx.c (simplify_subreg): Simplify subregs of vector
constants.
* expr.c (vector_mode_valid_p): New.
* expr.h: Add vector_mode_valid_p.
* defaults.h (VECTOR_MODE_SUPPORTED_P): Set default.
* emit-rtl.c (immed_double_const): Do not abort on vectors.
* c-common.c (type_for_mode): Always build vector nodes regardless
of VECTOR_MODE_SUPPORTED_P.
(handle_mode_attribute): Error if we can't emulate a nonexisting
vector mode.
(handle_vector_size_attribute): Same.
* optabs.c (expand_binop): Open-code vector operations.
(expand_unop): Open-code vector unops.
(expand_vector_binop): New.
(expand_vector_unop): New.
* c-typeck.c (build_binary_op): Allow vectors in binops.
Allow vectors in conditional operatiors.
(build_unary_op): Allow vectors in unary minus.
* config/rs6000/rs6000.h (ALTIVEC_VECTOR_MODE): Conditionalize on
TARGET_ALTIVEC.
From-SVN: r54727
* c-common.c (fix_string_type): Split out of ...
(combine_strings): ... here. Take a varray, not a tree list.
(c_expand_builtin_printf): Use fix_string_type.
* c-common.h: Update decls.
* c-parse.in (string): Remove. Update all uses to use STRING
instead, and not call combine_strings.
(yylexstring): New.
(_yylex): Use it.
* c-typeck.c (simple_asm_stmt): Don't call combine_strings.
(build_asm_stmt): Likewise.
* objc/objc-act.c (my_build_string): Use fix_string_type.
(build_objc_string_object): Build varray for combine_strings.
* parse.y (string): Remove. Update all uses to use STRING
instead, and not call combine_strings.
* rtti.c (tinfo_name): Use fix_string_type.
* semantics.c (finish_asm_stmt): Don't call combine_strings.
* spew.c (yylexstring): New.
(read_token): Use it.
* g++.dg/parse/concat1.C: New.
* gcc.dg/concat2.c: New.
From-SVN: r52790
* c-typeck.c (convert_for_assignment): Don't allow conversions
between pointers and references. Only allow lvalues to convert to
reference.
From-SVN: r50731
* c-common.c, c-common.h, c-decl.c, c-lex.c, c-parse.in,
c-tree.h, c-typeck.c, cppexp.c, cpplex.c, cpplib.c, cpplib.h,
cppmacro.c, objc/lang-specs.h, objc/objc-act.c,
builtin-types.def, builtins.def, dwarf2out.c, dwarfout.c,
gcc.c, toplev.c: Delete code implementing -traditional mode.
* ada/misc.c, ch/ch-tree.h, ch/decl.c, cp/decl2.c, f/com.c,
f/lex.c, f/top.c, java/builtins.c, java/decl.c: Delete
traditional-mode-related code copied from the C front end
but not used, or used only to permit the compiler to link.
* doc/bugreport.texi, doc/cpp.texi, doc/extend.texi,
doc/invoke.texi, doc/standards.texi, doc/trouble.texi:
Document removal of -traditional mode for compilation, and
remove documentation only relevant to that mode.
* config/nextstep.h, config/ptx4.h, config/svr4.h,
config/convex/convex.h, config/d30v/d30v.h,
config/i386/dgux.h, config/i386/osf1elf.h,
config/i386/osfelf.h, config/i386/osfrose.h,
config/i386/sco5.h, config/i386/sol2.h, config/m68k/a-ux.h,
config/m68k/hp310.h, config/m88k/dgux.h,
config/m88k/dguxbcs.h, config/m88k/luna.h, config/m88k/m88k.c,
config/m88k/m88k.h, config/m88k/openbsd.h,
config/mips/abi64.h, config/mips/osfrose.h,
config/mips/svr4-5.h, config/mips/svr4-t.h,
config/sparc/sol2-sld-64.h, config/sparc/sol2.h,
config/stormy16/stormy16.h: Remove all references to
-traditional from target specs. Delete all mention of the
no-longer-necessary TRADITIONAL_RETURN_FLOAT macro. Also
delete a couple of commented-out definitions of
DOLLARS_IN_IDENTIFIERS, with (incorrect) commentary referring
to -traditional.
* system.h: Poison TRADITIONAL_RETURN_FLOAT.
* doc/tm.texi: Remove mention of TRADITIONAL_RETURN_FLOAT macro.
* testsuite/gcc.c-torture/execute/920730-1t.c,
testsuite/gcc.c-torture/execute/920730-1t.x,
testsuite/gcc.dg/ext-glob.c: Delete test cases, only relevant
to -traditional.
From-SVN: r50110
* c-decl.c (finish_function): Warn about a non-void function with
no return statement and no abnormal exit.
(current_function_returns_abnormally): New variable.
(start_function): Clear it.
(struct c_language_function): Add returns_abnormally.
(push_c_function_context): Save it.
(pop_c_function_context): Restore it.
(builtin_function): Set TREE_THIS_VOLATILE on return fns.
(grokdeclarator): Set C_FUNCTION_IMPLICIT_INT on functions without
an explicit return type.
* c-tree.h: Declare current_function_returns_abnormally.
(C_FUNCTION_IMPLICIT_INT): New macro.
* c-typeck.c (build_function_call): Set it.
(c_expand_return): Set current_function_returns_value even if the
value is erroneous.
From-SVN: r49551
* c-common.def (SWITCH_STMT): Add SWITCH_TYPE operand.
* c-common.h (SWITCH_TYPE): Define.
* c-typeck.c (c_start_case): Set SWITCH_TYPE.
* stmt.c (all_cases_count): Set lastval to thisval at end of loop.
Rename spareness variable to sparseness.
(expand_end_case_type): Renamed from expand_end_case, use orig_type
if non-NULL instead of TREE_TYPE (orig_index).
* tree.h (expand_end_case_type): Renamed from expand_end_case.
(expand_end_case): Define using expand_end_case_type.
* c-semantics.c (genrtl_switch_stmt): Pass SWITCH_TYPE
to expand_end_case_type.
* doc/c-tree.texi (SWITCH_STMT): Document SWITCH_TYPE.
* semantics.c (begin_switch_stmt): Clear SWITCH_TYPE.
(finish_switch_cond): Set SWITCH_TYPE.
* gcc.dg/Wswitch.c: Fix typos. Don't return unconditionally
before all tests. Move warning one line above to match where it
C frontend emits.
* gcc.dg/Wswitch-2.c: New test.
* g++.dg/warn/Wswitch-1.C: New test.
* g++.dg/warn/Wswitch-2.C: New test.
From-SVN: r49497
* c-typeck.c (parser_build_binary_op): If result from
build_binary_op is ERROR_MARK just return error_mark_node without
further processing.
From-SVN: r49066
* c-typeck.c (process_init_element): Don't save_expr
COMPOUND_LITERAL_EXPR if just its initializer will be used.
* gcc.dg/gnu89-init-1.c: Add new tests.
From-SVN: r48868
