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Richard Sandiford 4ab2c72782 backprop: Avoid early return for abnormal phis [PR125653]
r17-1238-g8e3eff39a4564c added an early return for SSA names that
occur in abnormal phis.  That had the effect of bypassing the later:

	  /* If STMT is a phi, remove any information recorded for
	     its arguments.  */
	  if (is_a <gphi *> (stmt))
	    reprocess_inputs (stmt);

That reprocessing is important since (by design) the pass initially
makes optimistic assumptions about backedges.

gcc/
	PR tree-optimization/125653
	* gimple-ssa-backprop.cc (backprop::process_var): Avoid early
	return for SSA names that occur in abnormal phis.

gcc/testsuite/
	PR tree-optimization/125653
	* gcc.dg/torture/pr125653.c: New test.
2026-06-08 13:38:55 +01:00
.forgejo forge: Add a prototype CODEOWNERS file 2026-06-05 17:58:58 +01:00
.github
c++tools
config Daily bump. 2026-05-06 00:16:29 +00:00
contrib contrib: Use 'command -v' in download_prerequisites 2026-06-05 21:20:01 +01:00
fixincludes Daily bump. 2026-05-31 00:16:35 +00:00
gcc backprop: Avoid early return for abnormal phis [PR125653] 2026-06-08 13:38:55 +01:00
gnattools Daily bump. 2026-05-11 00:16:22 +00:00
gotools
include Daily bump. 2026-06-02 00:16:46 +00:00
INSTALL
libada
libatomic Daily bump. 2026-06-02 00:16:46 +00:00
libbacktrace Daily bump. 2026-06-04 08:18:58 +00:00
libcc1
libcody Daily bump. 2026-05-31 00:16:35 +00:00
libcpp Daily bump. 2026-05-31 00:16:35 +00:00
libdecnumber Daily bump. 2026-05-31 00:16:35 +00:00
libffi Daily bump. 2026-05-27 00:16:33 +00:00
libga68 Daily bump. 2026-05-31 00:16:35 +00:00
libgcc Daily bump. 2026-06-02 00:16:46 +00:00
libgcobol cobol: Properly DISPLAY COMP-1/-2 variables when "-dialect ibm" is in effect. [PR125616] 2026-06-05 15:06:07 -04:00
libgfortran Daily bump. 2026-05-31 00:16:35 +00:00
libgm2 Daily bump. 2026-06-02 00:16:46 +00:00
libgo libgo: cmd/go: use 'gcloud storage cp' instead of 'gsutil cp' 2026-05-02 16:21:35 -07:00
libgomp openmp, fortran: Add support for iterators in OpenMP 'target update' constructs (Fortran) 2026-06-07 01:51:46 +00:00
libgrust
libiberty libiberty: avoid exponential back reference issue in D demangler 2026-06-07 19:25:00 +01:00
libitm Daily bump. 2026-06-02 00:16:46 +00:00
libobjc
libphobos Daily bump. 2026-04-22 00:16:28 +00:00
libquadmath Daily bump. 2026-05-31 00:16:35 +00:00
libsanitizer Daily bump. 2026-06-04 08:18:58 +00:00
libssp Daily bump. 2026-05-06 00:16:29 +00:00
libstdc++-v3 testsuite: Resolve non-unique test names under several section 2026-06-08 14:22:44 +08:00
libvtv Daily bump. 2026-05-31 00:16:35 +00:00
lto-plugin Daily bump. 2026-05-31 00:16:35 +00:00
maintainer-scripts Daily bump. 2026-04-23 00:16:32 +00:00
zlib
.b4-config
.dir-locals.el
.editorconfig Configure EditorConfig for Git commit messages 2026-05-15 23:32:16 +00:00
.gitattributes
.gitignore
ABOUT-NLS
ar-lib
ChangeLog Daily bump. 2026-06-04 08:18:58 +00:00
ChangeLog.jit
ChangeLog.tree-ssa
compile
config-ml.in
config.guess
config.rpath
config.sub
configure [PATCH v2 2/2] build: Set default for CPP_FOR_BUILD environment variable in all cases. 2026-05-01 11:39:05 -06:00
configure.ac [PATCH v2 2/2] build: Set default for CPP_FOR_BUILD environment variable in all cases. 2026-05-01 11:39:05 -06:00
COPYING
COPYING.LIB
COPYING.RUNTIME
COPYING3
COPYING3.LIB
depcomp
install-sh
libtool-ldflags
libtool.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
lt~obsolete.m4
MAINTAINERS MAINTAINERS: Add missing account names 2026-06-03 17:10:53 +01:00
Makefile.def toplevel: Fix typos in build files 2026-05-30 19:49:31 +05:30
Makefile.in toplevel: Fix typos in build files 2026-05-30 19:49:31 +05:30
Makefile.tpl toplevel: Fix typos in build files 2026-05-30 19:49:31 +05:30
missing
mkdep
mkinstalldirs
move-if-change
multilib.am
README
SECURITY.txt
symlink-tree
test-driver
ylwrap

This directory contains the GNU Compiler Collection (GCC).

The GNU Compiler Collection is free software.  See the files whose
names start with COPYING for copying permission.  The manuals, and
some of the runtime libraries, are under different terms; see the
individual source files for details.

The directory INSTALL contains copies of the installation information
as HTML and plain text.  The source of this information is
gcc/doc/install.texi.  The installation information includes details
of what is included in the GCC sources and what files GCC installs.

See the file gcc/doc/gcc.texi (together with other files that it
includes) for usage and porting information.  An online readable
version of the manual is in the files gcc/doc/gcc.info*.

See http://gcc.gnu.org/bugs/ for how to report bugs usefully.

Copyright years on GCC source files may be listed using range
notation, e.g., 1987-2012, indicating that every year in the range,
inclusive, is a copyrightable year that could otherwise be listed
individually.