[r12-760 Regression] FAIL: gcc.target/i386/avx-pr94680.c scan-assembler-times (?n)vmov[a-z0-9]*[ \\t]*%xmm[0-9] 12 on Linux/x86_64

[sunil.k.pandey via Gcc-patches]

On Linux/x86_64,

94de7e225c1fda079052c3f0725c926437d56c94 is the first bad commit
commit 94de7e225c1fda079052c3f0725c926437d56c94
Author: liuhongt <hongtao....@intel.com>
Date:   Thu Apr 22 15:33:16 2021 +0800

    Optimize __builtin_shuffle when it's used to zero the upper bits of the 
dest. [PR target/94680]

caused

FAIL: gcc.target/i386/avx-pr94680.c scan-assembler-not pxor
FAIL: gcc.target/i386/avx-pr94680.c scan-assembler-times (?n)vmov[a-z0-9]*[ 
\\t]*%xmm[0-9] 12

with GCC configured with

../../gcc/configure 
--prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r12-760/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/avx-pr94680.c --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx-pr94680.c --target_board='unix{-m64\ 
-march=cascadelake}'"

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