On Linux/x86_64,

be072bfa5bb3817168daa0a4a398cd9bd915a726 is the first bad commit
commit be072bfa5bb3817168daa0a4a398cd9bd915a726
Author: Hongyu Wang <hongyu.w...@intel.com>
Date:   Mon Aug 30 15:18:35 2021 +0800

    AVX512FP16: Enhance vector shuffle builtins

caused

FAIL: gcc.target/i386/avx512fp16-v4hf-concat.c scan-assembler-times vpunpcklqdq 
1

with GCC configured with

../../gcc/configure 
--prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r12-4429/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/avx512fp16-v4hf-concat.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx512fp16-v4hf-concat.c 
--target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
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