Regressions on trunk at revision 239156 vs revision 239139

[Intel Automatic Testing System [ia32 Core AVXi PIE]]

New failures:

New passes:
FAIL: gcc.c-torture/execute/pr70903.c   -O0  (test for excess errors)
FAIL: gcc.c-torture/execute/pr70903.c   -O1  (test for excess errors)
FAIL: gcc.c-torture/execute/pr70903.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)
FAIL: gcc.c-torture/execute/pr70903.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  (test for excess errors)
FAIL: gcc.c-torture/execute/pr70903.c   -O2  (test for excess errors)
FAIL: gcc.c-torture/execute/pr70903.c   -O3 -g  (test for excess errors)
FAIL: gcc.c-torture/execute/pr70903.c   -Os  (test for excess errors)
FAIL: gcc.dg/pr70920-4.c scan-tree-dump forwprop1 "if \\(_[0-9]* == 0\\)"