Regressions on trunk at revision 249737 vs revision 249717

[H.J. Lu Intel64 -fpic -mcmodel=medium -mcmodel=large]

New failures:
FAIL: gcc.dg/uninit-pred-7_d.c (test for excess errors)
FAIL: gcc.dg/uninit-pred-7_d.c (test for excess errors)
FAIL: gcc.dg/uninit-pred-7_d.c (test for excess errors)
FAIL: gcc.dg/uninit-pred-7_d.c warning (test for warnings, line 48)
FAIL: gcc.dg/uninit-pred-7_d.c warning (test for warnings, line 48)
FAIL: gcc.dg/uninit-pred-7_d.c warning (test for warnings, line 48)
FAIL: gcc.dg/uninit-pred-8_d.c (test for excess errors)
FAIL: gcc.dg/uninit-pred-8_d.c (test for excess errors)
FAIL: gcc.dg/uninit-pred-8_d.c (test for excess errors)
FAIL: gcc.dg/uninit-pred-8_d.c warning (test for warnings, line 42)
FAIL: gcc.dg/uninit-pred-8_d.c warning (test for warnings, line 42)
FAIL: gcc.dg/uninit-pred-8_d.c warning (test for warnings, line 42)
FAIL: gcc.target/i386/branch-cost1.c (test for excess errors)
FAIL: gcc.target/i386/branch-cost1.c (test for excess errors)
FAIL: gcc.target/i386/branch-cost1.c (test for excess errors)
FAIL: gcc.target/i386/branch-cost4.c (test for excess errors)
FAIL: gcc.target/i386/branch-cost4.c (test for excess errors)
FAIL: gcc.target/i386/branch-cost4.c (test for excess errors)

New passes:
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-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-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-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-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-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-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-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/avx512pf-vgatherpf1qps-1.c scan-assembler-times vgatherpf1qps[ \\t]+[^{\n]*{%k[1-7]}(?:\n|[ \\t]+#) 2
FAIL: gcc.target/i386/cmov7.c scan-assembler fcmov
FAIL: gcc.target/i386/cmov7.c scan-assembler fcmov
FAIL: gcc.target/i386/cmov7.c scan-assembler fcmov