Regressions on trunk at revision 266402 vs revision 266367

[H.J. Lu]

New failures:
FAIL: 21_strings/basic_string_view/operators/wchar_t/2.cc execution test
FAIL: experimental/string_view/operators/wchar_t/2.cc execution test
FAIL: gcc.dg/guality/pr41447-1.c   -Os  -DPREVENT_OPTIMIZATION  execution test
FAIL: gcc.dg/guality/pr41616-1.c   -O2  -DPREVENT_OPTIMIZATION  execution test
FAIL: gcc.dg/guality/pr41616-1.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  -DPREVENT_OPTIMIZATION execution test
FAIL: gcc.dg/guality/pr41616-1.c   -O3 -g  -DPREVENT_OPTIMIZATION  execution test
FAIL: gcc.dg/guality/sra-1.c   -O2  -DPREVENT_OPTIMIZATION  line 43 a.i == 4
FAIL: gcc.dg/guality/sra-1.c   -O2  -DPREVENT_OPTIMIZATION  line 43 a.i == 4
FAIL: gcc.dg/guality/sra-1.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  -DPREVENT_OPTIMIZATION line 43 a.i == 4
FAIL: gcc.dg/guality/sra-1.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  -DPREVENT_OPTIMIZATION line 43 a.i == 4
FAIL: gcc.dg/guality/sra-1.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line 43 a.i == 4
FAIL: gcc.dg/guality/sra-1.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line 43 a.i == 4
FAIL: gcc.dg/guality/sra-1.c   -O3 -g  -DPREVENT_OPTIMIZATION  line 43 a.i == 4
FAIL: gcc.dg/guality/sra-1.c   -O3 -g  -DPREVENT_OPTIMIZATION  line 43 a.i == 4
FAIL: gcc.dg/guality/sra-1.c   -Os  -DPREVENT_OPTIMIZATION  line 43 a.i == 4
FAIL: gcc.dg/guality/sra-1.c   -Os  -DPREVENT_OPTIMIZATION  line 43 a.i == 4
FAIL: gcc.target/i386/pr22076.c scan-assembler-not movl
FAIL: gcc.target/i386/pr22076.c scan-assembler-times movq 3
FAIL: gcc.target/i386/pr22076.c scan-assembler-times movq 3
FAIL: gcc.target/i386/pr81563.c scan-assembler-times movl[\\t ]*-4\\(%ebp\\),[\\t ]*%edi 1
FAIL: gcc.target/i386/pr81563.c scan-assembler-times movl[\\t ]*-8\\(%ebp\\),[\\t ]*%esi 1
FAIL: g++.dg/guality/pr55665.C   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 23 p == 40
FAIL: g++.dg/guality/pr55665.C   -O2  line 23 p == 40
FAIL: g++.dg/guality/pr55665.C   -O3 -g  line 23 p == 40
FAIL: libgomp.c++/../libgomp.c-c++-common/for-14.c (test for excess errors)
FAIL: libgomp.c/../libgomp.c-c++-common/for-14.c (test for excess errors)
FAIL: libgomp.c++/../libgomp.c-c++-common/for-15.c (test for excess errors)
FAIL: libgomp.c/../libgomp.c-c++-common/for-15.c (test for excess errors)
FAIL: libgomp.c++/../libgomp.c-c++-common/for-1.c (test for excess errors)
FAIL: libgomp.c/../libgomp.c-c++-common/for-1.c (test for excess errors)
FAIL: libgomp.c++/../libgomp.c-c++-common/for-2.c (test for excess errors)
FAIL: libgomp.c/../libgomp.c-c++-common/for-2.c (test for excess errors)
FAIL: libgomp.c++/../libgomp.c-c++-common/for-3.c (test for excess errors)
FAIL: libgomp.c/../libgomp.c-c++-common/for-3.c (test for excess errors)
FAIL: libgomp.c++/../libgomp.c-c++-common/for-5.c (test for excess errors)
FAIL: libgomp.c/../libgomp.c-c++-common/for-5.c (test for excess errors)
FAIL: libgomp.c++/../libgomp.c-c++-common/for-6.c (test for excess errors)
FAIL: libgomp.c/../libgomp.c-c++-common/for-6.c (test for excess errors)

New passes:
FAIL: gcc.target/i386/avx512dq-concatv2si-1.c scan-assembler-times vpinsrd[^\n\r]*\\$1[^\n\r]*%xmm16[^\n\r]*%xmm3 2
FAIL: gcc.target/i386/avx512dq-concatv2si-1.c scan-assembler-times vpinsrd[^\n\r]*\\$1[^\n\r]*%xmm16[^\n\r]*%xmm3 2
FAIL: gcc.target/i386/avx512dq-concatv2si-1.c scan-assembler vpunpckldq[^\n\r]*%xmm17[^\n\r]*%xmm16[^\n\r]*%xmm3
FAIL: gcc.target/i386/avx512dq-concatv2si-1.c scan-assembler vpunpckldq[^\n\r]*%xmm17[^\n\r]*%xmm16[^\n\r]*%xmm3
FAIL: gcc.target/i386/avx512vl-concatv2si-1.c scan-assembler vpunpckldq[^\n\r]*%xmm17[^\n\r]*%xmm16[^\n\r]*%xmm3
FAIL: gcc.target/i386/avx512vl-concatv2si-1.c scan-assembler vpunpckldq[^\n\r]*%xmm17[^\n\r]*%xmm16[^\n\r]*%xmm3
ERROR: tcl error sourcing /export/ssd/git/gcc-test-native/src-trunk/gcc/testsuite/g++.dg/lto/lto.exp.
ERROR: tcl error sourcing /export/ssd/git/gcc-test-native/src-trunk/gcc/testsuite/g++.dg/lto/lto.exp.
ERROR: tcl error sourcing /export/ssd/git/gcc-test-native/src-trunk/gcc/testsuite/g++.dg/lto/lto.exp.
ERROR: unmatched open brace in list
ERROR: unmatched open brace in list
ERROR: unmatched open brace in list