Regressions on releases/gcc-13 at commit r13-8999 vs commit r13-8987 on Linux/x86_64

[Haochen Jiang]

Regressions on releases/gcc-13 at commit r13-8999 vs commit r13-8987 on Linux/x86_64
New failures:

New passes:
FAIL: gcc.target/i386/pieces-memcpy-10.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 4
FAIL: gcc.target/i386/pieces-memcpy-10.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 4
FAIL: gcc.target/i386/pieces-memcpy-6.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 4
FAIL: gcc.target/i386/pieces-memset-38.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 2
FAIL: gcc.target/i386/pieces-memset-38.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 2
FAIL: gcc.target/i386/pieces-memset-38.c scan-assembler-times vpcmpeqd[ \\t]+[^\n]*%xmm 1
FAIL: gcc.target/i386/pieces-memset-38.c scan-assembler-times vpcmpeqd[ \\t]+[^\n]*%xmm 1
FAIL: gcc.target/i386/pieces-memset-40.c scan-assembler-not %[re]bp
FAIL: gcc.target/i386/pieces-memset-40.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 4
FAIL: gcc.target/i386/pieces-memset-40.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 4
FAIL: gcc.target/i386/pieces-memset-40.c scan-assembler-times vpbroadcastb[ \\t]+[^\n]*%xmm 1
FAIL: gcc.target/i386/pieces-memset-41.c scan-assembler-not %[re]bp
FAIL: gcc.target/i386/pieces-memset-42.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 2
FAIL: gcc.target/i386/pieces-memset-42.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 2
FAIL: gcc.target/i386/pieces-memset-43.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 2
FAIL: gcc.target/i386/pieces-memset-43.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 2
FAIL: gcc.target/i386/pieces-memset-43.c scan-assembler-times vpcmpeqd[ \\t]+[^\n]*%xmm 1
FAIL: gcc.target/i386/pieces-memset-43.c scan-assembler-times vpcmpeqd[ \\t]+[^\n]*%xmm 1
FAIL: gcc.target/i386/pieces-strcpy-2.c scan-assembler-times vmovdqa[ \\t]+[^\n]*%xmm 4
FAIL: gcc.target/i386/pieces-strcpy-2.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 4