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gcc/libiberty/testsuite
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Patrick Palka a3bf6ce7f2 c++: Adjust mangling of __alignof__ [PR88115] 
r11-4926 made __alignof__ get mangled differently from alignof,
encoding __alignof__ as a vendor extended operator.  But this
mangling is problematic for the reasons mentioned in
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88115#c6.

This patch changes our mangling of __alignof__ to instead use the
new "vendor extended expression" syntax that's proposed in
https://github.com/itanium-cxx-abi/cxx-abi/issues/112.  Clang does
the same thing already, so after this patch Clang and GCC agree
about the mangling of __alignof__(type) and __alignof__(expr).

gcc/cp/ChangeLog:

	PR c++/88115
	* mangle.c (write_expression): Adjust the mangling of
	__alignof__.

include/ChangeLog:

	PR c++/88115
	* demangle.h (enum demangle_component_type): Add
	DEMANGLE_COMPONENT_VENDOR_EXPR.

libiberty/ChangeLog:

	PR c++/88115
	* cp-demangle.c (d_dump, d_make_comp, d_expression_1)
	(d_count_templates_scopes): Handle DEMANGLE_COMPONENT_VENDOR_EXPR.
	(d_print_comp_inner): Likewise.
	<case DEMANGLE_COMPONENT_EXTENDED_OPERATOR>: Revert r11-4926
	change.
	<case DEMANGLE_COMPONENT_UNARY>: Likewise.
	* testsuite/demangle-expected: Adjust __alignof__ tests.

gcc/testsuite/ChangeLog:

	PR c++/88115
	* g++.dg/cpp0x/alignof7.C: Adjust expected mangling.
2021-03-30 22:57:11 -04:00
..
d-demangle-expected
demangle-expected c++: Adjust mangling of __alignof__ [PR88115] 2021-03-30 22:57:11 -04:00
demangler-fuzzer.c Update copyright years. 2021-01-04 10:26:59 +01:00
Makefile.in Update copyright years. 2021-01-04 10:26:59 +01:00
rust-demangle-expected
test-demangle.c Update copyright years. 2021-01-04 10:26:59 +01:00
test-expandargv.c Update copyright years. 2021-01-04 10:26:59 +01:00
test-pexecute.c Update copyright years. 2021-01-04 10:26:59 +01:00
test-strtol.c Update copyright years. 2021-01-04 10:26:59 +01:00