Regressions on trunk at revision 182581 vs revision 182571

[H.J. Lu Intel64 LTO/FDO]

New failures:
FAIL: boehm-gc.c/thread_leak_test.c -O2 (test for excess errors)
FAIL: boehm-gc.c/thread_leak_test.c -O2 (test for excess errors)
FAIL: gcc.dg/guality/pr36728-1.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 12 arg1 == 1
FAIL: gcc.dg/guality/pr36728-1.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 14 arg1 == 1
FAIL: gcc.dg/guality/pr43177.c  -O1  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O1  line 24 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2  line 24 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 24 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 24 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 24 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O3 -fomit-frame-pointer  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O3 -fomit-frame-pointer  line 24 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O3 -g  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O3 -g  line 24 x == 7
FAIL: gcc.dg/guality/pr43177.c  -Os  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -Os  line 24 x == 7
FAIL: gcc.dg/guality/pr45003-2.c  -O1  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-2.c  -O1  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-2.c  -O2  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-2.c  -O2  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-2.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-2.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-2.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-2.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-2.c  -O3 -fomit-frame-pointer  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-2.c  -O3 -fomit-frame-pointer  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-2.c  -O3 -g  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-2.c  -O3 -g  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-2.c  -Os  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-2.c  -Os  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-3.c  -O1  line 10 a == -32648
FAIL: gcc.dg/guality/pr45003-3.c  -O1  line 19 a == 0x8078
FAIL: gcc.dg/guality/pr45003-3.c  -O2  line 10 a == -32648
FAIL: gcc.dg/guality/pr45003-3.c  -O2  line 19 a == 0x8078
FAIL: gcc.dg/guality/pr45003-3.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 10 a == -32648
FAIL: gcc.dg/guality/pr45003-3.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 19 a == 0x8078
FAIL: gcc.dg/guality/pr45003-3.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 10 a == -32648
FAIL: gcc.dg/guality/pr45003-3.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 19 a == 0x8078
FAIL: gcc.dg/guality/pr45003-3.c  -O3 -fomit-frame-pointer  line 10 a == -32648
FAIL: gcc.dg/guality/pr45003-3.c  -O3 -fomit-frame-pointer  line 19 a == 0x8078
FAIL: gcc.dg/guality/pr45003-3.c  -O3 -g  line 10 a == -32648
FAIL: gcc.dg/guality/pr45003-3.c  -O3 -g  line 19 a == 0x8078
FAIL: gcc.dg/guality/pr45003-3.c  -Os  line 10 a == -32648
FAIL: gcc.dg/guality/pr45003-3.c  -Os  line 19 a == 0x8078
FAIL: gcc.dg/guality/sra-1.c  -O1  line 43 a.i == 4
FAIL: gcc.dg/guality/sra-1.c  -O1  line 43 a.j == 14
FAIL: gcc.dg/guality/vla-1.c  -Os  line 17 sizeof (a) == 6
FAIL: gcc.dg/pr50038.c scan-assembler-times movzbl 2
FAIL: libitm.c/memcpy-1.c execution test
FAIL: libitm.c/memset-1.c execution test

New passes: