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1f79297ebe
The recommit ensures that the tests that failed on bots don't trigger the warning. Xcode 10 removes support for libstdc++, but the users just get a confusing include not file warning when including an STL header (when building for iOS6 which uses libstdc++ by default for example). This patch adds a new warning that lets the user know that the libstdc++ include path was not found to ensure that the user is more aware of why the error occurs. rdar://40830462 Differential Revision: https://reviews.llvm.org/D48297 llvm-svn: 335081
86 lines
2.3 KiB
C++
86 lines
2.3 KiB
C++
// REQUIRES: x86-registered-target
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// RUN: %clang -target i386-apple-darwin -std=c++11 -fblocks -Wframe-larger-than=70 -Wno-stdlibcxx-not-found -Xclang -verify -o /dev/null -c %s
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// RUN: %clang -target i386-apple-darwin -std=c++11 -fblocks -Wframe-larger-than=70 -Wno-stdlibcxx-not-found -Xclang -verify -o /dev/null -c %s -DIS_SYSHEADER
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// Test that:
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// * The driver passes the option through to the backend.
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// * The frontend diagnostic handler 'demangles' and resolves the correct function definition.
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// Test that link invocations don't emit an "argument unused during compilation" diagnostic.
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// RUN: touch %t.o
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// RUN: %clang -Werror -Wno-msvc-not-found -Wno-liblto -Wframe-larger-than=0 %t.o -### 2>&1 | not grep ' error: '
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// TODO: Support rich backend diagnostics for Objective-C methods.
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// Backend diagnostics aren't suppressed in system headers because such results
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// are significant and actionable.
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#ifdef IS_HEADER
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#ifdef IS_SYSHEADER
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#pragma clang system_header
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#endif
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extern void doIt(char *);
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void frameSizeWarning(int, int) {}
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void frameSizeWarning();
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void frameSizeWarning() { // expected-warning-re {{stack frame size of {{[0-9]+}} bytes in function 'frameSizeWarning'}}
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char buffer[80];
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doIt(buffer);
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}
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void frameSizeWarning();
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void frameSizeWarning(int) {}
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wframe-larger-than="
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void frameSizeWarningIgnored() {
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char buffer[80];
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doIt(buffer);
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}
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#pragma GCC diagnostic pop
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#pragma GCC diagnostic push
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#ifndef IS_SYSHEADER
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// expected-warning@+2 {{unknown warning group '-Wframe-larger-than'}}
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#endif
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#pragma GCC diagnostic ignored "-Wframe-larger-than"
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#pragma GCC diagnostic pop
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void frameSizeLocalClassWarning() {
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struct S {
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S() { // expected-warning-re {{stack frame size of {{[0-9]+}} bytes in function 'frameSizeLocalClassWarning()::S::S'}}
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char buffer[80];
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doIt(buffer);
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}
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};
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S();
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}
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void frameSizeLambdaWarning() {
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auto fn =
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[]() { // expected-warning-re {{stack frame size of {{[0-9]+}} bytes in lambda expression}}
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char buffer[80];
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doIt(buffer);
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};
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fn();
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}
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void frameSizeBlocksWarning() {
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auto fn =
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^() { // expected-warning-re {{stack frame size of {{[0-9]+}} bytes in block literal}}
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char buffer[80];
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doIt(buffer);
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};
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fn();
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}
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#else
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#define IS_HEADER
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#include __FILE__
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#endif
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