On Linux/x86_64,

6669dc51515313dd1e60c493596dbc90429fc362 is the first bad commit
commit 6669dc51515313dd1e60c493596dbc90429fc362
Author: Richard Biener <rguent...@suse.de>
Date:   Fri Jun 7 14:47:12 2024 +0200

    tree-optimization/115385 - handle more gaps with peeling of a single 
iteration

caused

FAIL: gcc.dg/vect/pr115385.c execution test
FAIL: gcc.dg/vect/pr115385.c -flto -ffat-lto-objects execution test

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1239/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/pr115385.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="vect.exp=gcc.dg/vect/pr115385.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.)

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