Regressions on trunk at revision 195477 vs revision 195471

[H.J. Lu Intel64]

New failures:

New passes:
FAIL: g++.dg/plugin/header_plugin.c compilation
FAIL: gcc.c-torture/compile/limits-externdecl.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)
FAIL: gcc.c-torture/compile/limits-externdecl.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  (test for excess errors)
FAIL: gcc.c-torture/unsorted/dump-noaddr.c,  -O0   -dumpbase dump1/dump-noaddr.c -DMASK=1 -x c --param ggc-min-heapsize=1 -fdump-ipa-all -fdump-rtl-all -fdump-tree-all -fdump-noaddr
FAIL: gcc.c-torture/unsorted/dump-noaddr.c,  -O1   -dumpbase dump1/dump-noaddr.c -DMASK=1 -x c --param ggc-min-heapsize=1 -fdump-ipa-all -fdump-rtl-all -fdump-tree-all -fdump-noaddr
FAIL: gcc.c-torture/unsorted/dump-noaddr.c,  -O1   -dumpbase dump1/dump-noaddr.c -DMASK=1 -x c --param ggc-min-heapsize=1 -fdump-ipa-all -fdump-rtl-all -fdump-tree-all -fdump-noaddr
FAIL: gcc.c-torture/unsorted/dump-noaddr.c,  -O2 -flto -fno-use-linker-plugin -flto-partition=none   -dumpbase dump1/dump-noaddr.c -DMASK=1 -x c --param ggc-min-heapsize=1 -fdump-ipa-all -fdump-rtl-all -fdump-tree-all -fdump-noaddr
FAIL: gcc.c-torture/unsorted/dump-noaddr.c,  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects   -dumpbase dump1/dump-noaddr.c -DMASK=1 -x c --param ggc-min-heapsize=1 -fdump-ipa-all -fdump-rtl-all -fdump-tree-all -fdump-noaddr
FAIL: gcc.c-torture/unsorted/dump-noaddr.c,  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects   -dumpbase dump1/dump-noaddr.c -DMASK=1 -x c --param ggc-min-heapsize=1 -fdump-ipa-all -fdump-rtl-all -fdump-tree-all -fdump-noaddr
FAIL: gcc.c-torture/unsorted/dump-noaddr.c,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions   -dumpbase dump1/dump-noaddr.c -DMASK=1 -x c --param ggc-min-heapsize=1 -fdump-ipa-all -fdump-rtl-all -fdump-tree-all -fdump-noaddr
FAIL: gcc.c-torture/unsorted/dump-noaddr.c,  -O3 -fomit-frame-pointer -funroll-loops   -dumpbase dump1/dump-noaddr.c -DMASK=1 -x c --param ggc-min-heapsize=1 -fdump-ipa-all -fdump-rtl-all -fdump-tree-all -fdump-noaddr
FAIL: gcc.c-torture/unsorted/dump-noaddr.c,  -O3 -g   -dumpbase dump1/dump-noaddr.c -DMASK=1 -x c --param ggc-min-heapsize=1 -fdump-ipa-all -fdump-rtl-all -fdump-tree-all -fdump-noaddr
FAIL: gcc.c-torture/unsorted/dump-noaddr.c,  -Os   -dumpbase dump1/dump-noaddr.c -DMASK=1 -x c --param ggc-min-heapsize=1 -fdump-ipa-all -fdump-rtl-all -fdump-tree-all -fdump-noaddr
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.000i.cgraph,  -O0  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.000i.cgraph,  -O1  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.000i.cgraph,  -O1  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.000i.cgraph,  -O2 -flto -fno-use-linker-plugin -flto-partition=none  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.000i.cgraph,  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.000i.cgraph,  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.000i.cgraph,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.000i.cgraph,  -O3 -fomit-frame-pointer -funroll-loops  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.000i.cgraph,  -O3 -g  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.000i.cgraph,  -Os  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.003t.original,  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.003t.original,  -O3 -fomit-frame-pointer -funroll-loops  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.003t.original,  -Os  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.244t.statistics,  -O1  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.244t.statistics,  -O1  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.244t.statistics,  -O2 -flto -fno-use-linker-plugin -flto-partition=none  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.244t.statistics,  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.244t.statistics,  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.244t.statistics,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.244t.statistics,  -O3 -fomit-frame-pointer -funroll-loops  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.244t.statistics,  -O3 -g  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.244t.statistics,  -Os  comparison