On Linux/x86_64,

87e35da16df74cd1c4729a55d94e7bc592487f48 is the first bad commit
commit 87e35da16df74cd1c4729a55d94e7bc592487f48
Author: Richard Biener <rguent...@suse.de>
Date:   Thu May 2 13:55:15 2024 +0200

    tree-optimization/114921 - _Float16 -> __bf16 isn't noop

caused

FAIL: gcc.target/i386/pr70251.c 1 blank line(s) in output
FAIL: gcc.target/i386/pr70251.c (internal compiler error: verify_gimple failed)
FAIL: gcc.target/i386/pr70251.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-124/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="i386.exp=gcc.target/i386/pr70251.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr70251.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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