29 lines · cpp
1// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -emit-llvm -fextend-variable-liveness -o - | FileCheck %s2//3// Check we can correctly produce fake uses for function-level variables even4// when we have a return in a nested conditional and there is no code at the end5// of the function.6 7// CHECK-LABEL: define{{.*}}@_Z3fooi8// CHECK: [[I_FAKE_USE:%[a-zA-Z0-9\.]+]] = load i32, ptr %i.addr9// CHECK: call void (...) @llvm.fake.use(i32 [[I_FAKE_USE]])10// CHECK-LABEL: define{{.*}}@_ZN1C3barEi11// CHECK: [[J_FAKE_USE:%[a-zA-Z0-9\.]+]] = load i32, ptr %j.addr12// CHECK: call void (...) @llvm.fake.use(i32 [[J_FAKE_USE]])13 14void foo(int i) {15 while (0)16 if (1)17 return;18}19 20class C {21 void bar(int j);22};23 24void C::bar(int j) {25 while (0)26 if (1)27 return;28}29