Regressions on master at commit r12-4044 vs commit r12-3999 on Linux/x86_64

[H.J. Lu]

New failures:
FAIL: gcc.target/i386/avx512fp16-reduce-op-2.c scan-tree-dump-times optimized ".REDUC_MAX" 3
FAIL: gcc.target/i386/avx512fp16-reduce-op-2.c scan-tree-dump-times optimized ".REDUC_MAX" 3
FAIL: gcc.target/i386/avx512fp16-reduce-op-2.c scan-tree-dump-times optimized ".REDUC_MAX" 3
FAIL: gcc.target/i386/avx512fp16-reduce-op-2.c scan-tree-dump-times optimized ".REDUC_MIN" 3
FAIL: gcc.target/i386/avx512fp16-reduce-op-2.c scan-tree-dump-times optimized ".REDUC_MIN" 3
FAIL: gcc.target/i386/avx512fp16-reduce-op-2.c scan-tree-dump-times optimized ".REDUC_MIN" 3
FAIL: gcc.target/i386/avx512fp16-reduce-op-2.c scan-tree-dump-times optimized ".REDUC_PLUS" 3
FAIL: gcc.target/i386/avx512fp16-reduce-op-2.c scan-tree-dump-times optimized ".REDUC_PLUS" 3
FAIL: gcc.target/i386/avx512fp16-reduce-op-2.c scan-tree-dump-times optimized ".REDUC_PLUS" 3
FAIL: gcc.target/i386/intrinsics_4.c (test for excess errors)
FAIL: gcc.target/i386/intrinsics_4.c (test for excess errors)
FAIL: gcc.target/i386/intrinsics_4.c (test for excess errors)

New passes:
FAIL: gcc.dg/vect/bb-slp-pr97709.c -flto -ffat-lto-objects (test for excess errors)
FAIL: gcc.dg/vect/bb-slp-pr97709.c -flto -ffat-lto-objects (test for excess errors)
FAIL: gcc.dg/vect/bb-slp-pr97709.c -flto -ffat-lto-objects (test for excess errors)
FAIL: gcc.dg/vect/bb-slp-pr97709.c (test for excess errors)
FAIL: gcc.dg/vect/bb-slp-pr97709.c (test for excess errors)
FAIL: gcc.dg/vect/bb-slp-pr97709.c (test for excess errors)