Regressions on trunk at revision 204546 vs revision 204540

[H.J. Lu Intel64 Core 2/i7]

New failures:
FAIL: gcc.dg/atomic/c11-atomic-exec-1.c  -O0  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-1.c  -O1  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-1.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-1.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-1.c  -O2  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-1.c  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-1.c  -O3 -fomit-frame-pointer -funroll-loops  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-1.c  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-1.c  -O3 -g  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-1.c  -Os  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-2.c  -O0  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-2.c  -O1  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-2.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-2.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-2.c  -O2  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-2.c  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-2.c  -O3 -fomit-frame-pointer -funroll-loops  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-2.c  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-2.c  -O3 -g  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-2.c  -Os  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c  -O0  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c  -O1  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c  -O2  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c  -O3 -fomit-frame-pointer -funroll-loops  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c  -O3 -g  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-4.c  -Os  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c  -O0  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c  -O1  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c  -O2  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c  -O3 -fomit-frame-pointer -funroll-loops  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c  -O3 -g  (test for excess errors)
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c  -Os  (test for excess errors)

New passes: