Regressions on master at commit r11-5032 vs commit r11-5027 on Linux/i686

[H.J. Lu]

New failures:
FAIL: compiler driver --help=common option(s): "^ +-.*[^:.]$" absent from output: "  --param=modref-max-depth=   Maximum depth of DFS walk used by modref escape analysis"
FAIL: gcc.dg/guality/pr59776.c   -O1  -DPREVENT_OPTIMIZATION  line pr59776.c:17 s1.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -O1  -DPREVENT_OPTIMIZATION  line pr59776.c:17 s1.g == 6.0
FAIL: gcc.dg/guality/pr59776.c   -O1  -DPREVENT_OPTIMIZATION  line pr59776.c:20 s1.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -O1  -DPREVENT_OPTIMIZATION  line pr59776.c:20 s1.g == 6.0
FAIL: gcc.dg/guality/pr59776.c   -O1  -DPREVENT_OPTIMIZATION  line pr59776.c:20 s2.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -O2  -DPREVENT_OPTIMIZATION  line pr59776.c:17 s1.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -O2  -DPREVENT_OPTIMIZATION  line pr59776.c:17 s1.g == 6.0
FAIL: gcc.dg/guality/pr59776.c   -O2  -DPREVENT_OPTIMIZATION  line pr59776.c:20 s1.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -O2  -DPREVENT_OPTIMIZATION  line pr59776.c:20 s1.g == 6.0
FAIL: gcc.dg/guality/pr59776.c   -O2  -DPREVENT_OPTIMIZATION  line pr59776.c:20 s2.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  -DPREVENT_OPTIMIZATION line pr59776.c:17 s1.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  -DPREVENT_OPTIMIZATION line pr59776.c:17 s1.g == 6.0
FAIL: gcc.dg/guality/pr59776.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  -DPREVENT_OPTIMIZATION line pr59776.c:20 s1.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  -DPREVENT_OPTIMIZATION line pr59776.c:20 s1.g == 6.0
FAIL: gcc.dg/guality/pr59776.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  -DPREVENT_OPTIMIZATION line pr59776.c:20 s2.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line pr59776.c:17 s1.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line pr59776.c:17 s1.g == 6.0
FAIL: gcc.dg/guality/pr59776.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line pr59776.c:20 s1.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line pr59776.c:20 s1.g == 6.0
FAIL: gcc.dg/guality/pr59776.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line pr59776.c:20 s2.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -O3 -g  -DPREVENT_OPTIMIZATION  line pr59776.c:17 s1.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -O3 -g  -DPREVENT_OPTIMIZATION  line pr59776.c:17 s1.g == 6.0
FAIL: gcc.dg/guality/pr59776.c   -O3 -g  -DPREVENT_OPTIMIZATION  line pr59776.c:20 s1.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -O3 -g  -DPREVENT_OPTIMIZATION  line pr59776.c:20 s1.g == 6.0
FAIL: gcc.dg/guality/pr59776.c   -O3 -g  -DPREVENT_OPTIMIZATION  line pr59776.c:20 s2.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -Os  -DPREVENT_OPTIMIZATION  line pr59776.c:17 s1.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -Os  -DPREVENT_OPTIMIZATION  line pr59776.c:17 s1.g == 6.0
FAIL: gcc.dg/guality/pr59776.c   -Os  -DPREVENT_OPTIMIZATION  line pr59776.c:20 s1.f == 5.0
FAIL: gcc.dg/guality/pr59776.c   -Os  -DPREVENT_OPTIMIZATION  line pr59776.c:20 s1.g == 6.0
FAIL: gcc.dg/guality/pr59776.c   -Os  -DPREVENT_OPTIMIZATION  line pr59776.c:20 s2.f == 5.0

New passes: