Regressions on master at commit r12-3641 vs commit r12-3600 on Linux/x86_64

[H.J. Lu]

New failures:
FAIL: gcc.target/i386/auto-init-3.c scan-assembler-times fldz 3
FAIL: libgomp.c/../libgomp.c-c++-common/atomic-21.c execution test

New passes:
FAIL: gcc.target/i386/auto-init-2.c scan-rtl-dump-times expand "0xfefefefefefefefe" 3
FAIL: gcc.target/i386/auto-init-2.c scan-rtl-dump-times expand "0xfefefefefefefefe" 3
FAIL: gcc.target/i386/auto-init-2.c scan-rtl-dump-times expand "0xfffffffffefefefe" 2
FAIL: gcc.target/i386/auto-init-2.c scan-rtl-dump-times expand "0xfffffffffefefefe" 2
FAIL: gcc.target/i386/auto-init-4.c scan-rtl-dump-times expand "\\[0xfefefefefefefefe\\]" 1
FAIL: gcc.target/i386/auto-init-4.c scan-rtl-dump-times expand "0xfffffffffefefefe" 1
FAIL: gcc.target/i386/auto-init-4.c scan-rtl-dump-times expand "0xfffffffffffffffe\\]\\) repeated x16" 1
FAIL: gcc.target/i386/auto-init-5.c scan-assembler-times \\.long\t0 14
FAIL: gcc.target/i386/auto-init-padding-3.c scan-assembler movl\t\\$16,
FAIL: gcc.target/i386/auto-init-padding-3.c scan-assembler rep stosq
FAIL: gcc.target/i386/auto-init-padding-7.c scan-assembler-times movq\t\\$0, 2
FAIL: gcc.target/i386/auto-init-padding-8.c scan-assembler-times movq\t\\$0, 2
FAIL: gcc.target/i386/auto-init-padding-9.c scan-assembler rep stosq
FAIL: gfortran.dg/PR100914.f90   -O0  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -O0  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -O0  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -O1  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -O1  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -O1  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -O2  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -O2  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -O2  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -O3 -g  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -O3 -g  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -O3 -g  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -Os  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -Os  (test for excess errors)
FAIL: gfortran.dg/PR100914.f90   -Os  (test for excess errors)