On Linux/x86_64,
6883d51304f1aa852da3f2b4eb26bdf2e12bbcb9 is the first bad commit
commit 6883d51304f1aa852da3f2b4eb26bdf2e12bbcb9
Author: Avinash Jayakar <[email protected]>
Date: Fri Oct 17 12:38:59 2025 +0530
vect: Add pattern recognition for vectorizing {FLOOR,CEIL,ROUND}_{MOD,
DIV}_EXPR
caused
FAIL: gcc.dg/vect/pr104116-ceil-umod-2.c -flto -ffat-lto-objects
scan-tree-dump-times vect "optimized: loop vectorized" 1
FAIL: gcc.dg/vect/pr104116-ceil-umod-2.c scan-tree-dump-times vect "optimized:
loop vectorized" 1
FAIL: gcc.dg/vect/pr104116-ceil-umod-pow2.c -flto -ffat-lto-objects
scan-tree-dump-times vect "optimized: loop vectorized" 1
FAIL: gcc.dg/vect/pr104116-ceil-umod-pow2.c scan-tree-dump-times vect
"optimized: loop vectorized" 1
FAIL: gcc.dg/vect/pr104116-round-umod-2.c -flto -ffat-lto-objects
scan-tree-dump-times vect "optimized: loop vectorized" 1
FAIL: gcc.dg/vect/pr104116-round-umod-2.c scan-tree-dump-times vect "optimized:
loop vectorized" 1
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r16-4464/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}/gcc && make check
RUNTESTFLAGS="vect.exp=gcc.dg/vect/pr104116-ceil-umod-2.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="vect.exp=gcc.dg/vect/pr104116-ceil-umod-2.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="vect.exp=gcc.dg/vect/pr104116-ceil-umod-pow2.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="vect.exp=gcc.dg/vect/pr104116-ceil-umod-pow2.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="vect.exp=gcc.dg/vect/pr104116-round-umod-2.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="vect.exp=gcc.dg/vect/pr104116-round-umod-2.c
--target_board='unix{-m64\ -march=cascadelake}'"
(Please directly reply to this email for question about this report.)
(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.)
