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Martin Sebor 5d9ae53d70 PR c/81544 - attribute noreturn and warn_unused_result on the same function accepted 
PR c/81544 - attribute noreturn and warn_unused_result on the same function accepted
PR c/81566 - invalid attribute aligned accepted on functions

gcc/ada/ChangeLog:

	PR c/81544
	* gcc-interface/utils.c (gnat_internal_attribute_table): Initialize
	new member of struct attribute_spec.

gcc/c/ChangeLog:

	PR c/81544
	* c-decl.c (c_decl_attributes): Look up existing declaration and
	pass it to decl_attributes.

gcc/c-family/ChangeLog:

	PR c/81544
	PR c/81566
	* c-attribs.c (attr_aligned_exclusions): New array.
	(attr_alloc_exclusions, attr_cold_hot_exclusions): Same.
	(attr_common_exclusions, attr_const_pure_exclusions): Same.
	(attr_gnu_inline_exclusions, attr_inline_exclusions): Same.
	(attr_noreturn_exclusions, attr_returns_twice_exclusions): Same.
	(attr_warn_unused_result_exclusions): Same.
	(handle_hot_attribute, handle_cold_attribute): Simplify.
	(handle_const_attribute): Warn on function returning void.
	(handle_pure_attribute): Same.
	(handle_aligned_attribute): Diagnose conflicting attribute
	specifications.
	* c-warn.c (diagnose_mismatched_attributes): Simplify.

gcc/cp/ChangeLog:

	PR c/81544
	* cp-tree.h (decls_match): Add default argument.
	* decl.c (decls_match): Avoid calling into the target back end
	and triggering an error.
	* decl2.c (cplus_decl_attributes): Look up existing declaration and
	pass it to decl_attributes.
	* tree.c (cxx_attribute_table): Initialize new member of struct
	attribute_spec.

gcc/fortran/ChangeLog:

	PR c/81544
	* f95-lang.c (gfc_attribute_table): Initialize new member of struct
	attribute_spec.

gcc/lto/ChangeLog:

	PR c/81544
	* lto-lang.c (lto_attribute_table): Initialize new member of struct
	attribute_spec.

gcc/ChangeLog:

	PR c/81544
	* attribs.c (empty_attribute_table): Initialize new member of
	struct attribute_spec.
	(decl_attributes): Add argument.  Handle mutually exclusive
	combinations of attributes.
	(selftests::test_attribute_exclusions): New function.
	(selftests::attribute_c_tests): Ditto.
	* attribs.h (decl_attributes): Add default argument.
	* selftest.h (attribute_c_tests): Declare.
	* selftest-run-tests.c (selftest::run_tests): Call attribute_c_tests.
	* tree-core.h (attribute_spec::exclusions, exclude): New type and
	member.
	* doc/extend.texi (Common Function Attributes): Update const and pure.

gcc/testsuite/ChangeLog:

	PR c/81544
	* c-c++-common/Wattributes-2.c: New test.
	* c-c++-common/Wattributes.c: New test.
	* c-c++-common/attributes-3.c: Adjust.
	* gcc.dg/Wattributes-6.c: New test.
	* gcc.dg/Wattributes-7.c: New test.
	* gcc.dg/attr-noinline.c
	* gcc.dg/pr44964.c: Same.
	* gcc.dg/torture/pr42363.c: Same.
	* gcc.dg/tree-ssa/ssa-ccp-2.c: Same.

From-SVN: r255469
2017-12-07 09:32:03 -07:00
..
pb_ds
Remove reundant const-qualification from cast targets
2017-04-27 16:17:05 +01:00
algorithm
Update copyright years.
2017-01-01 13:07:43 +01:00
aligned_buffer.h
Update copyright years.
2017-01-01 13:07:43 +01:00
alloc_traits.h
Define std::__to_address helper
2017-09-13 08:27:40 +01:00
array_allocator.h
Update copyright years.
2017-01-01 13:07:43 +01:00
atomicity.h
Update copyright years.
2017-01-01 13:07:43 +01:00
bitmap_allocator.h
re PR libstdc++/81064 (Inline namespace regression)
2017-07-23 08:41:35 +00:00
cast.h
Update copyright years.
2017-01-01 13:07:43 +01:00
cmath
Update copyright years.
2017-01-01 13:07:43 +01:00
codecvt_specializations.h
re PR libstdc++/81064 (Inline namespace regression)
2017-07-23 08:41:35 +00:00
concurrence.h
Update copyright years.
2017-01-01 13:07:43 +01:00
debug_allocator.h
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2017-01-01 13:07:43 +01:00
enc_filebuf.h
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2017-01-01 13:07:43 +01:00
extptr_allocator.h
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2017-01-01 13:07:43 +01:00
functional
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2017-01-01 13:07:43 +01:00
iterator
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2017-01-01 13:07:43 +01:00
malloc_allocator.h
Update copyright years.
2017-01-01 13:07:43 +01:00
memory
Update copyright years.
2017-01-01 13:07:43 +01:00
mt_allocator.h
PR c/81544 - attribute noreturn and warn_unused_result on the same function accepted
2017-12-07 09:32:03 -07:00
new_allocator.h
PR c++/82039 suppress -Wzero-as-null-pointer-constant warning
2017-08-31 17:45:37 +01:00
numeric
Update copyright years.
2017-01-01 13:07:43 +01:00
numeric_traits.h
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2017-01-01 13:07:43 +01:00
pod_char_traits.h
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2017-01-01 13:07:43 +01:00
pointer.h
PR69301 don't assume atomic<T> can default construct T
2017-01-18 18:36:45 +00:00
pool_allocator.h
Update copyright years.
2017-01-01 13:07:43 +01:00
random
Add optimized implementation of mersenne twister for aarch64
2017-07-23 22:46:34 +00:00
random.tcc
Update copyright years.
2017-01-01 13:07:43 +01:00
rb_tree
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2017-01-01 13:07:43 +01:00
rc_string_base.h
Update copyright years.
2017-01-01 13:07:43 +01:00
rope
re PR libstdc++/81064 (Inline namespace regression)
2017-07-23 08:41:35 +00:00
ropeimpl.h
Use const char* to fix -Wwrite-strings warning
2017-12-01 15:10:16 +00:00
slist
Update copyright years.
2017-01-01 13:07:43 +01:00
sso_string_base.h
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2017-01-01 13:07:43 +01:00
stdio_filebuf.h
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2017-01-01 13:07:43 +01:00
stdio_sync_filebuf.h
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2017-01-01 13:07:43 +01:00
string_conversions.h
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2017-01-01 13:07:43 +01:00
throw_allocator.h
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2017-01-01 13:07:43 +01:00
type_traits.h
Update copyright years.
2017-01-01 13:07:43 +01:00
typelist.h
re PR libstdc++/81064 (Inline namespace regression)
2017-07-23 08:41:35 +00:00
vstring_fwd.h
Update copyright years.
2017-01-01 13:07:43 +01:00
vstring_util.h
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2017-01-01 13:07:43 +01:00
vstring.h
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2017-01-01 13:07:43 +01:00
vstring.tcc
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2017-01-01 13:07:43 +01:00