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We keep a map from function name to source location so we don't have to do it via looking up a source location from the AST. However, since function names can be long, we actually use a hash of the function name as the key. Additionally, we can't rely on Clang's printing of function names via the AST, so we just demangle the name instead. This is necessary to implement https://lists.llvm.org/pipermail/cfe-dev/2021-September/068930.html. Reviewed By: dblaikie Differential Revision: https://reviews.llvm.org/D110665
79 lines
2.2 KiB
C++
79 lines
2.2 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 ({{[0-9]+}}) exceeds limit ({{[0-9]+}}) in '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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void frameSizeLocalClassWarning() {
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struct S {
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S() { // expected-warning-re {{stack frame size ({{[0-9]+}}) exceeds limit ({{[0-9]+}}) in '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 ({{[0-9]+}}) exceeds limit ({{[0-9]+}}) in 'frameSizeLambdaWarning()::$_0::operator()() const'}}
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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 ({{[0-9]+}}) exceeds limit ({{[0-9]+}}) in 'invocation function for block in frameSizeBlocksWarning()'}}
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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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