On Linux/x86_64,
01f4251b8775c832a92d55e2df57c9ac72eaceef is the first bad commit
commit 01f4251b8775c832a92d55e2df57c9ac72eaceef
Author: Tamar Christina <[email protected]>
Date: Sun Dec 24 19:18:12 2023 +0000
middle-end: Support vectorization of loops with multiple exits.
caused
FAIL: 25_algorithms/partition_point/constrained.cc -std=gnu++20 execution test
FAIL: 25_algorithms/partition_point/constrained.cc -std=gnu++26 execution test
FAIL: gcc.dg/tree-ssa/gen-vect-26.c scan-tree-dump-times vect "Alignment of
access forced using peeling" 1
FAIL: gcc.dg/vect/slp-mask-store-1.c -flto -ffat-lto-objects
scan-tree-dump-times vect "LOOP VECTORIZED" 1
FAIL: gcc.dg/vect/slp-mask-store-1.c scan-tree-dump-times vect "LOOP
VECTORIZED" 1
FAIL: gcc.target/i386/vect-double-2.c scan-tree-dump-times vect "Vectorized
loops: 1" 1
FAIL: gcc.target/i386/xorsign.c scan-assembler-not [ \t]or
FAIL: gcc.target/i386/xorsign.c scan-tree-dump-times vect "vectorized 2 loops" 1
with GCC configured with
../../gcc/configure
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6822/usr
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl
--enable-libmpx x86_64-linux --disable-bootstrap
To reproduce:
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check
RUNTESTFLAGS="conformance.exp=25_algorithms/partition_point/constrained.cc
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/gen-vect-26.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/gen-vect-26.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="vect.exp=gcc.dg/vect/slp-mask-store-1.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="vect.exp=gcc.dg/vect/slp-mask-store-1.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/vect-double-2.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/vect-double-2.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/xorsign.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/xorsign.c --target_board='unix{-m64\
-march=cascadelake}'"
(Please do not reply to this email, for question about this report, contact me
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)
