[PATCH] D125829: [clang] Fix __has_builtin

[Yaxun Liu via Phabricator via cfe-commits]

yaxunl created this revision.
yaxunl added reviewers: tra, aaron.ballman, rsmith.
Herald added a project: All.
yaxunl requested review of this revision.

Fix `__has_builtin` to return 1 only if the requested target features
of a builtin are enabled by refactoring the code for checking
required target features of a builtin and use it in evaluation
of `__has_builtin`.


https://reviews.llvm.org/D125829

Files:
  clang/include/clang/Basic/Builtins.h
  clang/lib/Basic/BuiltinTargetFeatures.h
  clang/lib/Basic/Builtins.cpp
  clang/lib/CodeGen/CodeGenFunction.cpp
  clang/lib/CodeGen/CodeGenFunction.h
  clang/lib/Lex/PPMacroExpansion.cpp
  clang/test/Preprocessor/hash_builtin.cpp
  clang/unittests/CodeGen/CheckTargetFeaturesTest.cpp

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