Regressions on native/master at commit r16-3994 vs commit r16-3988 on Linux/x86_64

[Haochen Jiang]

Regressions on master at commit r16-3994 vs commit r16-3988 on Linux/x86_64
New failures:
FAIL: g++.dg/ipa/devirt-2.C  -std=gnu++17  scan-ipa-dump cp "Discovered a virtual call to a known target.*B::foo"
FAIL: g++.dg/ipa/devirt-2.C  -std=gnu++17  scan-ipa-dump cp "Discovered a virtual call to a known target.*B::foo"
FAIL: g++.dg/ipa/devirt-2.C  -std=gnu++26  scan-ipa-dump cp "Discovered a virtual call to a known target.*B::foo"
FAIL: g++.dg/ipa/devirt-2.C  -std=gnu++26  scan-ipa-dump cp "Discovered a virtual call to a known target.*B::foo"
FAIL: g++.dg/ipa/devirt-2.C  -std=gnu++98  scan-ipa-dump cp "Discovered a virtual call to a known target.*B::foo"
FAIL: g++.dg/ipa/devirt-2.C  -std=gnu++98  scan-ipa-dump cp "Discovered a virtual call to a known target.*B::foo"
FAIL: g++-dg-lto-devirt-2-01.exe scan-wpa-ipa-dump cp "Discovered a virtual call to a known target.*foo"
FAIL: g++-dg-lto-devirt-2-01.exe scan-wpa-ipa-dump cp "Discovered a virtual call to a known target.*foo"
FAIL: gfortran.dg/pdt_48.f03   -O0  execution test
FAIL: gfortran.dg/pdt_48.f03   -O0  execution test
FAIL: gfortran.dg/pdt_48.f03   -O1  execution test
FAIL: gfortran.dg/pdt_48.f03   -O1  execution test
FAIL: gfortran.dg/pdt_48.f03   -O2  execution test
FAIL: gfortran.dg/pdt_48.f03   -O2  execution test
FAIL: gfortran.dg/pdt_48.f03   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: gfortran.dg/pdt_48.f03   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: gfortran.dg/pdt_48.f03   -O3 -g  execution test
FAIL: gfortran.dg/pdt_48.f03   -O3 -g  execution test
FAIL: gfortran.dg/pdt_48.f03   -Os  execution test
FAIL: gfortran.dg/pdt_48.f03   -Os  execution test

New passes: