Regressions on trunk at revision 205506 vs revision 205478

[H.J. Lu x32]

New failures:
FAIL: 22_locale/locale/cons/12438.cc execution test
FAIL: gcc.c-torture/execute/920728-1.c compilation,  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects 
FAIL: gcc.dg/tree-ssa/alias-25.c scan-tree-dump-not optimized "= 42"
FAIL: g++.dg/asan/deep-stack-uaf-1.C  -O1  output pattern test, is , should match ERROR: AddressSanitizer:? heap-use-after-free on address.*(
FAIL: g++.dg/asan/deep-stack-uaf-1.C  -O2  output pattern test, is , should match ERROR: AddressSanitizer:? heap-use-after-free on address.*(
FAIL: g++.dg/asan/deep-stack-uaf-1.C  -O3 -fomit-frame-pointer  output pattern test, is , should match ERROR: AddressSanitizer:? heap-use-after-free on address.*(
FAIL: g++.dg/asan/deep-stack-uaf-1.C  -O3 -g  output pattern test, is , should match ERROR: AddressSanitizer:? heap-use-after-free on address.*(
FAIL: g++.dg/asan/deep-stack-uaf-1.C  -Os  output pattern test, is , should match ERROR: AddressSanitizer:? heap-use-after-free on address.*(

New passes: