Regressions on master at commit r14-5325-gf880bdc2716d59 vs commit r14-5290-ge01c2eeb2b654a on Linux/x86_64

[H.J. Lu]

Regressions on master at commit r14-5325-gf880bdc2716d59 vs commit r14-5290-ge01c2eeb2b654a on Linux/x86_64
New failures:
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++17  at line 3 (test for errors, line )
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++17  at line 3 (test for errors, line )
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++17  at line 3 (test for errors, line )
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++17 (test for excess errors)
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++17 (test for excess errors)
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++17 (test for excess errors)
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++2a  at line 3 (test for errors, line )
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++2a  at line 3 (test for errors, line )
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++2a  at line 3 (test for errors, line )
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++2a (test for excess errors)
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++2a (test for excess errors)
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++2a (test for excess errors)
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++2b  at line 3 (test for errors, line )
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++2b  at line 3 (test for errors, line )
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++2b  at line 3 (test for errors, line )
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++2b (test for excess errors)
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++2b (test for excess errors)
FAIL: g++.dg/modules/bad-mapper-1.C -std=c++2b (test for excess errors)

New passes:
FAIL: gcc.dg/tree-ssa/scev-3.c scan-tree-dump-times ivopts "&a" 1
FAIL: gcc.dg/tree-ssa/scev-5.c scan-tree-dump-times ivopts "&a" 1