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Joseph Myers 4ea128d5c7 c: Revert C2x changes to function type compatibility
In commit cc80612621, I implemented
changes that C2x had made to compatibility of unprototyped and
prototyped function types.

C2x has since completely removed unprototyped function types, making
() in a function declaration mean (void) as in C++.  While that change
isn't appropriate at the current development stage for GCC 12, it does
mean that it doesn't make sense for GCC 12 to have different rules for
unprototyped functions in C2x mode than in other modes or previous and
subsequent GCC versions.  Thus, revert the previous change to avoid it
getting into a GCC release, and update the corresponding tests to
expect the same behavior with -std=c2x as with -std=c11 (they will of
course need to change again after implementing () as meaning (void)).

Bootstrapped with no regressions for x86_64-pc-linux-gnu.

gcc/c/
	* c-typeck.cc (function_types_compatible_p): Do not handle C2X
	differently from earlier standards for unprototyped function type
	compatibility.

gcc/testsuite/
	* gcc.dg/c11-unproto-1.c, gcc.dg/c11-unproto-2.c: Update comments.
	* gcc.dg/c2x-unproto-1.c, gcc.dg/c2x-unproto-2.c: Expect same
	results as in C11 mode.  Update comments.
2022-03-09 22:51:23 +00:00
c++tools Update copyright years. 2022-01-03 10:42:10 +01:00
config Daily bump. 2021-12-22 00:16:30 +00:00
contrib contrib: Fix non-portable sed commands in gcc-descr [PR102664/] 2022-03-09 00:19:01 +00:00
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gcc c: Revert C2x changes to function type compatibility 2022-03-09 22:51:23 +00:00
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INSTALL
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libada Update copyright years. 2022-01-03 10:42:10 +01:00
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libgcc GCN: Implement __atomic_compare_exchange_{1,2} in libgcc [PR102215] 2022-03-09 19:34:48 +01:00
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libobjc Update copyright years. 2022-01-03 10:42:10 +01:00
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libssp Update copyright years. 2022-01-03 10:42:10 +01:00
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maintainer-scripts Daily bump. 2021-05-15 00:16:27 +00:00
zlib Daily bump. 2021-12-17 00:16:20 +00:00
.dir-locals.el dir-locals: Use https for bug references 2021-07-20 11:40:34 +01:00
.gitattributes
.gitignore Add cscope.out to git ignore. 2021-06-24 16:51:40 +05:30
ABOUT-NLS
ar-lib
ChangeLog Daily bump. 2022-02-23 00:16:24 +00:00
ChangeLog.jit
ChangeLog.tree-ssa
compile
config-ml.in
config.guess
config.rpath
config.sub config.sub: change mode to 755. 2021-12-21 09:10:57 +01:00
configure config: Add check whether D compiler works (PR103528) 2021-12-21 21:29:35 +01:00
configure.ac Revert "Sync with binutils: GCC: Pass --plugin to AR and RANLIB" 2021-12-15 20:45:58 -08:00
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.RUNTIME
depcomp
install-sh
libtool-ldflags
libtool.m4 Revert "Sync with binutils: GCC: Pass --plugin to AR and RANLIB" 2021-12-15 20:45:58 -08:00
lt~obsolete.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS MAINTAINERS: Update my email address. 2022-02-22 15:55:05 +00:00
Makefile.def toplevel: Makefile.def: Make configure-sim depend on all-readline 2022-03-09 20:54:37 +01:00
Makefile.in toplevel: Makefile.def: Make configure-sim depend on all-readline 2022-03-09 20:54:37 +01:00
Makefile.tpl Revert "Sync with binutils: GCC: Pass --plugin to AR and RANLIB" 2021-12-15 20:45:58 -08:00
missing
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README
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