caio/clang-p2996
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[frontend][darwin] warn_stdlibcxx_not_found: supress warning for preprocessed input

Browse Source 
Addresses second post-commit feedback for r335081 from Nico

llvm-svn: 348540
This commit is contained in:
Alex Lorenz
2018-12-06 22:45:58 +00:00
parent 0961cd1a1a
commit 2e7ab55e65
2 changed files with 8 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
clang/lib/Frontend/CompilerInvocation.cpp
View File

@@ -3240,6 +3240,7 @@ bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
Res.getTargetOpts(), Res.getFrontendOpts());
ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args,
Res.getFileSystemOpts().WorkingDir);
llvm::Triple T(Res.getTargetOpts().Triple);
if (DashX.getFormat() == InputKind::Precompiled ||
DashX.getLanguage() == InputKind::LLVM_IR) {
// ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
@@ -3260,6 +3261,12 @@ bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
Res.getPreprocessorOpts(), Diags);
if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
LangOpts.ObjCExceptions = 1;
if (T.isOSDarwin() && DashX.isPreprocessed()) {
// Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for
// preprocessed input as we don't expect it to be used with -std=libc++
// anyway.
Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found");
}
}
LangOpts.FunctionAlignment =
@@ -3291,7 +3298,6 @@ bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
Res.getFrontendOpts().ProgramAction);
// Turn on -Wspir-compat for SPIR target.
llvm::Triple T(Res.getTargetOpts().Triple);
auto Arch = T.getArch();
if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) {
Res.getDiagnosticOpts().Warnings.push_back("spir-compat");

1
clang/test/Frontend/warning-stdlibcxx-darwin.cpp
View File

@@ -1,5 +1,6 @@
// RUN: %clang -cc1 -triple arm64-apple-ios6.0.0 -isysroot %S/doesnotexist %s 2>&1 | FileCheck %s
// RUN: %clang -cc1 -triple arm64-apple-ios6.0.0 -isysroot %S/doesnotexist -stdlib=libc++ %s -verify
// RUN: %clang -cc1 -x c++-cpp-output -triple arm64-apple-ios6.0.0 -isysroot %S/doesnotexist %s -verify
// CHECK: include path for stdlibc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++ standard library instead
// expected-no-diagnostics