Author: Ian Anderson
Date: 2023-12-13T10:36:03-08:00
New Revision: 6d18951b833b2a2dabe268b3be0163e03a9e1142

URL: 
https://github.com/llvm/llvm-project/commit/6d18951b833b2a2dabe268b3be0163e03a9e1142
DIFF: 
https://github.com/llvm/llvm-project/commit/6d18951b833b2a2dabe268b3be0163e03a9e1142.diff

LOG: Remove the builtin_headers_in_system_modules feature (#75262)

__has_feature(builtin_headers_in_system_modules) was added in
https://reviews.llvm.org/D159483 to be used in the stdarg/stddef
implementation headers. It ended up being unnecessary, but I forgot to
remove the feature definition.

Added: 
    

Modified: 
    clang/include/clang/Basic/Features.def
    clang/test/Driver/darwin-builtin-modules.c

Removed: 
    


################################################################################
diff  --git a/clang/include/clang/Basic/Features.def 
b/clang/include/clang/Basic/Features.def
index 7473e00a7bd86b..06efac0cf1abd7 100644
--- a/clang/include/clang/Basic/Features.def
+++ b/clang/include/clang/Basic/Features.def
@@ -282,7 +282,6 @@ EXTENSION(matrix_types_scalar_division, true)
 EXTENSION(cxx_attributes_on_using_declarations, LangOpts.CPlusPlus11)
 EXTENSION(datasizeof, LangOpts.CPlusPlus)
 
-FEATURE(builtin_headers_in_system_modules, 
LangOpts.BuiltinHeadersInSystemModules)
 FEATURE(cxx_abi_relative_vtable, LangOpts.CPlusPlus && 
LangOpts.RelativeCXXABIVTables)
 
 // CUDA/HIP Features

diff  --git a/clang/test/Driver/darwin-builtin-modules.c 
b/clang/test/Driver/darwin-builtin-modules.c
index 215f2b8d2c142a..1c56e13bfb9293 100644
--- a/clang/test/Driver/darwin-builtin-modules.c
+++ b/clang/test/Driver/darwin-builtin-modules.c
@@ -9,19 +9,3 @@
 // RUN: %clang -isysroot %S/Inputs/MacOSX99.0.sdk -target 
x86_64-apple-macos98.0 -### %s 2>&1 | FileCheck --check-prefix=CHECK_FUTURE %s
 // RUN: %clang -isysroot %S/Inputs/MacOSX99.0.sdk -target 
x86_64-apple-macos99.0 -### %s 2>&1 | FileCheck --check-prefix=CHECK_FUTURE %s
 // CHECK_FUTURE-NOT: -fbuiltin-headers-in-system-modules
-
-
-// Check that builtin_headers_in_system_modules is only set if 
-fbuiltin-headers-in-system-modules and -fmodules are both set.
-
-// RUN: %clang -isysroot %S/Inputs/iPhoneOS13.0.sdk -target 
arm64-apple-ios13.0 -fsyntax-only %s -Xclang -verify=no-feature
-// RUN: %clang -isysroot %S/Inputs/iPhoneOS13.0.sdk -target 
arm64-apple-ios13.0 -fsyntax-only %s -fmodules -Xclang -verify=yes-feature
-// RUN: %clang -isysroot %S/Inputs/MacOSX99.0.sdk -target 
x86_64-apple-macos99.0 -fsyntax-only %s -Xclang -verify=no-feature
-// RUN: %clang -isysroot %S/Inputs/MacOSX99.0.sdk -target 
x86_64-apple-macos99.0 -fsyntax-only %s -fmodules -Xclang -verify=no-feature
-
-#if __has_feature(builtin_headers_in_system_modules)
-#error "has builtin_headers_in_system_modules"
-// yes-feature-error@-1 {{}}
-#else
-#error "no builtin_headers_in_system_modules"
-// no-feature-error@-1 {{}}
-#endif


        
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