Regressions on trunk at revision 151906 vs revision 151893

[H.J. Lu ia32]

New failures:
FAIL: gcc.dg/ipa/ipa-sra-1.c scan-tree-dump eipa_sra "About to replace expr cow.blue with ISRA": dump file does not exist
FAIL: gcc.dg/ipa/ipa-sra-1.c scan-tree-dump eipa_sra "About to replace expr cow.green with ISRA": dump file does not exist
FAIL: gcc.dg/ipa/ipa-sra-2.c scan-tree-dump eipa_sra "About to replace expr calf_.*D.->green with ISRA": dump file does not exist
FAIL: gcc.dg/ipa/ipa-sra-2.c scan-tree-dump eipa_sra "About to replace expr calf_.*D.->red with \*ISRA": dump file does not exist
FAIL: gcc.dg/ipa/ipa-sra-2.c scan-tree-dump eipa_sra "About to replace expr cow_.*D.->green with ISRA": dump file does not exist
FAIL: gcc.dg/ipa/ipa-sra-2.c scan-tree-dump eipa_sra "About to replace expr cow_.*D.->red with \*ISRA": dump file does not exist
FAIL: gcc.dg/ipa/ipa-sra-3.c scan-tree-dump eipa_sra "base: calf, remove_param": dump file does not exist
FAIL: gcc.dg/ipa/ipa-sra-3.c scan-tree-dump eipa_sra "base: z, remove_param": dump file does not exist
FAIL: gcc.dg/ipa/ipa-sra-4.c scan-tree-dump eipa_sra "About to replace expr \*i_.*D. with ISRA": dump file does not exist
FAIL: gcc.dg/ipa/ipa-sra-4.c scan-tree-dump eipa_sra "About to replace expr \*l_.*D. with ISRA": dump file does not exist
FAIL: gcc.dg/ipa/ipa-sra-4.c scan-tree-dump-times eipa_sra "About to replace expr *j_.*D. with ISRA" 0: dump file does not exist
FAIL: gcc.dg/ipa/ipa-sra-4.c scan-tree-dump-times eipa_sra "About to replace expr *k_.*D. with ISRA" 0: dump file does not exist
FAIL: gcc.dg/ipa/ipa-sra-5.c scan-tree-dump-times eipa_sra "base: j, remove_param" 0: dump file does not exist

New passes:
FAIL: gcc.dg/cpp/missing-header-MD.c  (test for errors, line 5)
FAIL: gcc.dg/cpp/missing-header-MD.c (test for excess errors)
FAIL: gcc.dg/cpp/missing-header-MMD.c  (test for errors, line 5)
FAIL: gcc.dg/cpp/missing-header-MMD.c (test for excess errors)
FAIL: gcc.dg/cpp/missing-sysheader-MD.c  (test for errors, line 5)
FAIL: gcc.dg/cpp/missing-sysheader-MD.c (test for excess errors)
FAIL: gcc.dg/cpp/missing-sysheader-MMD.c  (test for errors, line 5)
FAIL: gcc.dg/cpp/missing-sysheader-MMD.c (test for excess errors)