21 lines · cpp
1// REQUIRES: x86-registered-target2// RUN: %clang_cc1 %s -fwarn-stack-size=0 -emit-codegen-only -triple=i386-apple-darwin 2>&1 | FileCheck %s3 4// TODO: Emit rich diagnostics for thunks and move this into the appropriate test file.5// Until then, test that we fall back and display the LLVM backend diagnostic.6namespace frameSizeThunkWarning {7 struct A {8 virtual void f();9 };10 11 struct B : virtual A {12 virtual void f();13 };14 15 // CHECK: warning: stack frame size ([[#]]) exceeds limit ([[#]]) in 'frameSizeThunkWarning::B::f()'16 // CHECK: warning: <unknown>:0:0: stack frame size ([[#]]) exceeds limit ([[#]]) in function '_ZTv0_n12_N21frameSizeThunkWarning1B1fEv'17 void B::f() {18 volatile int x = 0; // Ensure there is stack usage.19 }20}21