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Richard Sandiford 9e4da9b5d5 Tighten early exit in vect_analyze_data_ref_dependence (PR85586)
The problem in this PR was that we didn't consider aliases between
writes in the same strided group.  After tightening the early exit
we get the expected abs(step) >= 2 versioning check.

2018-05-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	PR tree-optimization/85586
	* tree-vect-data-refs.c (vect_analyze_data_ref_dependence): Only
	exit early for statements in the same group if the accesses are
	not strided.

gcc/testsuite/
	PR tree-optimization/85586
	* gcc.dg/vect/pr85586.c: New test.

From-SVN: r259822
2018-05-02 07:40:22 +00:00
config
contrib Add support for gcc as git submodule of another repository. 2018-05-01 17:24:45 -07:00
fixincludes
gcc Tighten early exit in vect_analyze_data_ref_dependence (PR85586) 2018-05-02 07:40:22 +00:00
gnattools
gotools
include Plugin API to get the list of wrap symbols. 2018-05-02 00:53:48 +00:00
INSTALL
intl
libada
libatomic
libbacktrace
libcc1
libcpp
libdecnumber
libffi
libgcc re PR libgcc/84292 (__sync_add_and_fetch returns the old value instead of the new value) 2018-04-27 21:14:05 +02:00
libgfortran
libgo re PR go/85429 (Several gotools tests FAIL with Solaris as) 2018-05-01 14:08:44 +00:00
libgomp [openacc, testsuite] Fix undefined behaviour in atomic_capture-1.c 2018-04-29 10:26:56 +00:00
libhsail-rt
libiberty argv.c (expandargv): Fix memory leak for expanded arguments. 2018-04-30 12:00:49 -06:00
libitm
libmpx
libobjc
liboffloadmic
libquadmath
libsanitizer
libssp
libstdc++-v3 PR libstdc++/84654 Disable __float128 specializations for -mno-float128 2018-05-01 23:47:33 +01:00
libvtv
lto-plugin
maintainer-scripts
zlib
.dir-locals.el
.gitattributes
.gitignore
ABOUT-NLS
ChangeLog Add the Netronome Flow Processor (nfp) as a build target to the top-level configure.ac file. 2018-05-01 15:26:51 +00:00
ChangeLog.jit
ChangeLog.tree-ssa
compile
config-ml.in
config.guess
config.rpath
config.sub
configure Add the Netronome Flow Processor (nfp) as a build target to the top-level configure.ac file. 2018-05-01 15:26:51 +00:00
configure.ac Add the Netronome Flow Processor (nfp) as a build target to the top-level configure.ac file. 2018-05-01 15:26:51 +00:00
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.RUNTIME
depcomp
install-sh
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libtool.m4
lt~obsolete.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS
Makefile.def
Makefile.in re PR bootstrap/85571 (non-bootstrap-debug miscompare with trunk) 2018-04-30 08:18:03 +00:00
Makefile.tpl re PR bootstrap/85571 (non-bootstrap-debug miscompare with trunk) 2018-04-30 08:18:03 +00:00
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