Regressions on master at commit r15-3193 vs commit r15-3083 on Linux/i686

[Haochen Jiang]

Regressions on master at commit r15-3193 vs commit r15-3083 on Linux/i686
New failures:
FAIL: gcc.dg/guality/pr90074.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line 28 c + 1 == 2
FAIL: gcc.dg/guality/pr90074.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line 28 i + 1 == 8
FAIL: gcc.dg/guality/pr90716.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line 23 j + 1 == 9
FAIL: gcc.target/i386/avx512fp16-vector-complex-float.c scan-assembler-not vfmadd[123]*ph[ \\t]
FAIL: gcc.target/i386/avx512fp16-vector-complex-float.c scan-assembler-times vfmaddcph[ \\t] 1

New passes:
FAIL: gcc.dg/vect/vect-mod-var.c execution test
FAIL: gcc.dg/vect/vect-mod-var.c -flto -ffat-lto-objects execution test
FAIL: gfortran.dg/class_transformational_1.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (internal compiler error: in make_ssa_name_fn, at tree-ssanames.cc:355)
FAIL: gfortran.dg/class_transformational_1.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gfortran.dg/class_transformational_1.f90   -O3 -g  (internal compiler error: in make_ssa_name_fn, at tree-ssanames.cc:355)
FAIL: gfortran.dg/class_transformational_1.f90   -O3 -g  (test for excess errors)