Regressions on trunk at revision 249673 vs revision 249643

[H.J. Lu Intel64 Core i7]

New failures:
FAIL: gcc.target/i386/avx512pf-vgatherpf0dpd-1.c scan-assembler-times vgatherpf0dpd[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/avx512pf-vgatherpf0dpd-1.c scan-assembler-times vgatherpf0dpd[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/avx512pf-vgatherpf0dps-1.c scan-assembler-times vgatherpf0dps[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/avx512pf-vgatherpf0dps-1.c scan-assembler-times vgatherpf0dps[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/avx512pf-vgatherpf0qpd-1.c scan-assembler-times vgatherpf0qpd[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/avx512pf-vgatherpf0qpd-1.c scan-assembler-times vgatherpf0qpd[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/avx512pf-vgatherpf0qps-1.c scan-assembler-times vgatherpf0qps[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/avx512pf-vgatherpf0qps-1.c scan-assembler-times vgatherpf0qps[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/avx512pf-vgatherpf1dpd-1.c scan-assembler-times vgatherpf1dpd[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/avx512pf-vgatherpf1dpd-1.c scan-assembler-times vgatherpf1dpd[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/avx512pf-vgatherpf1dps-1.c scan-assembler-times vgatherpf1dps[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/avx512pf-vgatherpf1dps-1.c scan-assembler-times vgatherpf1dps[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/avx512pf-vgatherpf1qpd-1.c scan-assembler-times vgatherpf1qpd[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/avx512pf-vgatherpf1qpd-1.c scan-assembler-times vgatherpf1qpd[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/avx512pf-vgatherpf1qps-1.c scan-assembler-times vgatherpf1qps[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/avx512pf-vgatherpf1qps-1.c scan-assembler-times vgatherpf1qps[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/pr69255-2.c  (test for errors, line 15)
FAIL: gcc.target/i386/pr69255-2.c  (test for errors, line 15)
FAIL: gcc.target/i386/pr69255-2.c  (test for warnings, line 15)
FAIL: gcc.target/i386/pr69255-2.c  (test for warnings, line 15)
FAIL: gcc.target/i386/pr69255-2.c  (test for warnings, line 15)
FAIL: gcc.target/i386/pr69255-2.c  (test for warnings, line 15)

New passes: