[llvm] [X86][APX] Fix issues of suppressing APX for relocation (PR #139285)

[Feng Zou via llvm-commits]

fzou1 wrote:

No idea why it's failed as PCH size changed. I guess it's not related to my PR
```
[buildkite/github-pull-requests](https://buildkite.com/llvm-project/github-pull-requests/builds/177991) — Build #177991 failed (48 minutes, 56 seconds)
[buildkite/github-pull-requests/linux-linux-x64](https://buildkite.com/llvm-project/github-pull-requests/builds/177991#0196bfd5-0289-4483-9498-b8b8495046fe)
buildkite/github-pull-requests/linux-linux-x64 — Failed (exit status 1)
```

The error message in the log
```
[8841/12374] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-acc-structure.cpp.o_bk;t=1746951318765 
_bk;t=1746951318765 FAILED: tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-acc-structure.cpp.o 
_bk;t=1746951318765 CCACHE_CPP2=yes CCACHE_HASHDIR=yes CCACHE_SLOPPINESS=pch_defines,time_macros /usr/bin/ccache /usr/bin/clang++ -DFLANG_INCLUDE_TESTS=1 -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/build/tools/flang/lib/Semantics -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/flang/lib/Semantics -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/flang/include -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/build/tools/flang/include -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/build/include -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/llvm/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/flang/../mlir/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/build/tools/mlir/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/build/tools/clang/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/llvm/../clang/include -gmlt -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Wno-deprecated-copy -Wno-string-conversion -Wno-ctad-maybe-unsupported -Wno-unused-command-line-argument -Wstring-conversion           -Wcovered-switch-default -Wno-nested-anon-types -Xclang -fno-pch-timestamp -O3 -DNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++17 -Winvalid-pch -Xclang -include-pch -Xclang /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/build/tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/cmake_pch.hxx.pch -Xclang -include -Xclang /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/build/tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/cmake_pch.hxx -MD -MT tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-acc-structure.cpp.o -MF tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-acc-structure.cpp.o.d -o tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-acc-structure.cpp.o -c /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/flang/lib/Semantics/check-acc-structure.cpp
_bk;t=1746951318765 fatal error: file '/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/llvm/include/llvm/ADT/bit.h' has been modified since the precompiled header '/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/build/tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/cmake_pch.hxx.pch' was built: size changed (was 12409, now 12384)
_bk;t=1746951318765 note: please rebuild precompiled header '/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-r5vt5-1/llvm-project/github-pull-requests/build/tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/cmake_pch.hxx.pch'
_bk;t=1746951318765 1 error generated.
```

https://github.com/llvm/llvm-project/pull/139285