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Martin Sebor 866626efd7 PR tree-optimization/78257 - missing memcmp optimization with constant arrays
gcc/ChangeLog:

	PR middle-end/78257
	* builtins.c (expand_builtin_memory_copy_args): Rename called function.
	(expand_builtin_stpcpy_1): Remove argument from call.
	(expand_builtin_memcmp): Rename called function.
	(inline_expand_builtin_bytecmp): Same.
	* expr.c (convert_to_bytes): New function.
	(constant_byte_string): New function (formerly string_constant).
	(string_constant): Call constant_byte_string.
	(byte_representation): New function.
	* expr.h (byte_representation): Declare.
	* fold-const-call.c (fold_const_call): Rename called function.
	* fold-const.c (c_getstr): Remove an argument.
	(getbyterep): Define a new function.
	* fold-const.h (c_getstr): Remove an argument.
	(getbyterep): Declare a new function.
	* gimple-fold.c (gimple_fold_builtin_memory_op): Rename callee.
	(gimple_fold_builtin_string_compare): Same.
	(gimple_fold_builtin_memchr): Same.

gcc/testsuite/ChangeLog:

	PR middle-end/78257
	* gcc.dg/memchr.c: New test.
	* gcc.dg/memcmp-2.c: New test.
	* gcc.dg/memcmp-3.c: New test.
	* gcc.dg/memcmp-4.c: New test.
2020-08-14 17:11:53 -06:00
config Daily bump. 2020-07-31 00:16:26 +00:00
contrib Daily bump. 2020-07-30 00:16:24 +00:00
fixincludes Allow CONFIG_SHELL to override build-time shell in mkheaders 2020-02-20 22:09:03 -03:00
gcc PR tree-optimization/78257 - missing memcmp optimization with constant arrays 2020-08-14 17:11:53 -06:00
gnattools
gotools libgo: update to Go1.14beta1 2020-01-21 23:53:22 -08:00
include Daily bump. 2020-08-04 00:16:24 +00:00
INSTALL
intl intl: Unbreak intl build with bison 3 when no regeneration is needed [PR92008] 2020-04-16 11:55:00 +02:00
libada Add `--with-toolexeclibdir=' configuration option 2020-01-24 11:24:25 +00:00
libatomic Daily bump. 2020-07-15 00:16:35 +00:00
libbacktrace Daily bump. 2020-07-31 00:16:26 +00:00
libcc1 c++: Yet more name-lookup api simplification 2020-08-14 10:54:53 -07:00
libcpp Daily bump. 2020-07-31 00:16:26 +00:00
libdecnumber Daily bump. 2020-07-31 00:16:26 +00:00
libffi libffi/test: Fix compilation for build sysroot 2020-04-25 21:27:14 +01:00
libgcc Daily bump. 2020-08-14 00:16:24 +00:00
libgfortran Daily bump. 2020-08-04 00:16:24 +00:00
libgo libgo: correctly handle AIX FAT library creation 2020-08-12 11:33:54 -07:00
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libhsail-rt Add `--with-toolexeclibdir=' configuration option 2020-01-24 11:24:25 +00:00
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libobjc Daily bump. 2020-05-30 00:16:27 +00:00
liboffloadmic Add missing ChangeLog entries. 2020-05-05 16:10:13 +02:00
libphobos Daily bump. 2020-06-26 00:16:23 +00:00
libquadmath Daily bump. 2020-05-30 00:16:27 +00:00
libsanitizer Daily bump. 2020-07-17 00:16:27 +00:00
libssp Daily bump. 2020-05-30 00:16:27 +00:00
libstdc++-v3 diagnostics: Add new option -fdiagnostics-plain-output 2020-08-14 09:29:19 -04:00
libvtv Daily bump. 2020-05-30 00:16:27 +00:00
lto-plugin Daily bump. 2020-07-31 00:16:26 +00:00
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.dir-locals.el
.gitattributes Add *.md diff=md. 2020-01-15 14:29:53 +01:00
.gitignore Add .clang-tidy to git ignored. 2020-06-12 16:03:02 +02:00
ABOUT-NLS
ar-lib
ChangeLog Daily bump. 2020-08-13 00:16:23 +00:00
ChangeLog.jit
ChangeLog.tree-ssa
compile
config-ml.in MSP430: Add -fno-exceptions multilib 2019-12-11 19:19:50 +00:00
config.guess Update config.sub and config.guess. 2019-09-09 11:14:32 +02:00
config.rpath
config.sub Update config.sub and config.guess. 2019-09-09 11:14:32 +02:00
configure bootstrap: Fix --disable-bootstrap with older g++. 2020-06-08 16:42:35 -04:00
configure.ac bootstrap: Fix --disable-bootstrap with older g++. 2020-06-08 16:42:35 -04:00
COPYING
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depcomp
install-sh
libtool-ldflags
libtool.m4 [ARM/FDPIC v6 02/24] [ARM] FDPIC: Handle arm*-*-uclinuxfdpiceabi in configure scripts 2019-09-10 09:37:00 +02:00
ltgcc.m4
ltmain.sh Do not use HAVE_DOS_BASED_FILE_SYSTEM for Cygwin. 2020-04-17 09:22:51 +02:00
ltoptions.m4
ltsugar.m4
ltversion.m4
lt~obsolete.m4
MAINTAINERS MAINTAINERS: Update my email address 2020-08-12 15:59:03 +05:30
Makefile.def Merge top-level configury changes from gdb 2020-04-09 06:52:55 -06:00
Makefile.in Merge top-level configury changes from gdb 2020-04-09 06:52:55 -06:00
Makefile.tpl Makefile.tpl (HOST_EXPORTS): Add CXX_FOR_BUILD. 2019-08-23 15:37:22 -06:00
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