llvm-project/clang/test/CodeGen/fake-use-this.cpp
Stephen Tozer de9b0ddedc Add explicit triple to fix errors from #110102
Attempted fix for errors observed on:
https://luci-milo.appspot.com/ui/p/fuchsia/builders/toolchain.ci/clang-windows-x64/b8724497761651154417/overview

Several tests that required an explicit triple had none present; this
patch adds those triples.
2025-01-28 19:34:41 +00:00

35 lines
851 B
C++

// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -emit-llvm -fextend-variable-liveness=this -o - | FileCheck %s --implicit-check-not=fake.use
// Check that we generate a fake_use call with the 'this' pointer as argument,
// and no other fake uses.
// The call should appear after the call to bar().
void bar();
class C
{
public:
bool test(int p);
C(int v): v(v) {}
private:
int v;
};
bool C::test(int p)
{
// CHECK-LABEL: define{{.*}}_ZN1C4testEi(ptr{{[^,]*}} %this, i32{{.*}} %p)
// CHECK: %this.addr = alloca ptr
// CHECK: store ptr %this, ptr %this.addr
int res = p - v;
bar();
// CHECK: call{{.*}}bar
return res != 0;
// CHECK: [[FAKE_USE:%.+]] = load ptr, ptr %this.addr
// CHECK-NEXT: call void (...) @llvm.fake.use(ptr{{.*}} [[FAKE_USE]])
// CHECK-NEXT: ret
}
// CHECK: declare void @llvm.fake.use