Regressions on master at commit r15-2794 vs commit r15-2792 on Linux/i686

[Haochen Jiang]

Regressions on master at commit r15-2794 vs commit r15-2792 on Linux/i686
New failures:

New passes:
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++17  scan-assembler-times \\mpsrlq\\M 1
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++17  scan-assembler-times \\mpsubq\\M 2
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++17  scan-assembler-times \\mpxor\\M 2
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++26  scan-assembler-times \\mpsrlq\\M 1
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++26  scan-assembler-times \\mpsubq\\M 2
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++26  scan-assembler-times \\mpxor\\M 2
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++98  scan-assembler-times \\mpsrlq\\M 1
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++98  scan-assembler-times \\mpsubq\\M 2
FAIL: g++.dg/other/sse2-pr85572-1.C  -std=gnu++98  scan-assembler-times \\mpxor\\M 2