51 changes: 51 additions & 0 deletions clang/test/Misc/backend-stack-frame-diagnostics.cpp
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// REQUIRES: x86-registered-target
// RUN: %clang -target i386-apple-darwin -std=c++11 -fblocks -Wframe-larger-than=70 -Xclang -verify -o /dev/null -c %s

// Test that:
// * The driver passes the option through to the backend.
// * The frontend diagnostic handler 'demangles' and resolves the correct function definition.

// TODO: Support rich backend diagnostics for Objective-C methods.

extern void doIt(char *);

void frameSizeWarning(int, int) {}

void frameSizeWarning();

void frameSizeWarning() { // expected-warning-re {{stack frame size of {{[0-9]+}} bytes in function 'frameSizeWarning'}}
char buffer[80];
doIt(buffer);
}

void frameSizeWarning();

void frameSizeWarning(int) {}

void frameSizeLocalClassWarning() {
struct S {
S() { // expected-warning-re {{stack frame size of {{[0-9]+}} bytes in function 'frameSizeLocalClassWarning()::S::S'}}
char buffer[80];
doIt(buffer);
}
};
S();
}

void frameSizeLambdaWarning() {
auto fn =
[]() { // expected-warning-re {{stack frame size of {{[0-9]+}} bytes in lambda expression}}
char buffer[80];
doIt(buffer);
};
fn();
}

void frameSizeBlocksWarning() {
auto fn =
^() { // expected-warning-re {{stack frame size of {{[0-9]+}} bytes in block literal}}
char buffer[80];
doIt(buffer);
};
fn();
}