Regressions on trunk at revision 211874 vs revision 211846

[Denis Larionov [ia32 Core AVX2]]

New failures:
FAIL: c-c++-common/asan/strlen-overflow-1.c  -O0  output pattern test, is =================================================================
FAIL: c-c++-common/asan/strlen-overflow-1.c  -O0  output pattern test, is =================================================================
FAIL: c-c++-common/asan/strlen-overflow-1.c  -O1  output pattern test, is =================================================================
FAIL: c-c++-common/asan/strlen-overflow-1.c  -O1  output pattern test, is =================================================================
FAIL: c-c++-common/asan/strlen-overflow-1.c  -O2  output pattern test, is =================================================================
FAIL: c-c++-common/asan/strlen-overflow-1.c  -O2  output pattern test, is =================================================================
FAIL: c-c++-common/asan/strlen-overflow-1.c  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  output pattern test, is =================================================================
FAIL: c-c++-common/asan/strlen-overflow-1.c  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  output pattern test, is =================================================================
FAIL: c-c++-common/asan/strlen-overflow-1.c  -O3 -fomit-frame-pointer -funroll-loops  output pattern test, is =================================================================
FAIL: c-c++-common/asan/strlen-overflow-1.c  -O3 -fomit-frame-pointer -funroll-loops  output pattern test, is =================================================================
FAIL: c-c++-common/asan/strlen-overflow-1.c  -O3 -fomit-frame-pointer  output pattern test, is =================================================================
FAIL: c-c++-common/asan/strlen-overflow-1.c  -O3 -fomit-frame-pointer  output pattern test, is =================================================================
FAIL: c-c++-common/asan/strlen-overflow-1.c  -O3 -g  output pattern test, is =================================================================
FAIL: c-c++-common/asan/strlen-overflow-1.c  -O3 -g  output pattern test, is =================================================================
FAIL: c-c++-common/asan/strlen-overflow-1.c  -Os  output pattern test, is =================================================================
FAIL: c-c++-common/asan/strlen-overflow-1.c  -Os  output pattern test, is =================================================================

New passes:
FAIL: gcc.target/arm/lto/pr61123-enum-size c_lto_pr61123-enum-size_0.o-c_lto_pr61123-enum-size_1.o link,  -fno-short-enums -Wl,-Ur,--no-enum-size-warning -Os -nostdlib -flto