// RUN: %clang_cc1 %s -triple %itanium_abi_triple -emit-llvm -fextend-variable-liveness -fcxx-exceptions -fexceptions -o - | FileCheck %s // This test checks that the fake uses can be generated in exception handling // blocks and that we can emit fake uses for the __int128 data type. extern int bar(); /// Try block: fake use ends at try-block scope. // [[BAR_VAL::%[a-zA-Z0-9\.]+]] = invoke{{.*}} i32 @_Z3barv() // store i32 %[[BAR_VAL]], ptr [[K_ALLOC_VAL:%[a-zA-Z0-9\.]+]], align 4 // [[K_FAKE_USE:%[a-zA-Z0-9\.]+]] = load i32, ptr [[K_ALLOC_VAL]], align 4 // call void (...) @llvm.fake.use(i32 [[K_FAKE_USE]]) #2 // br label /// Catch block: fetching the caught value... // CHECK: [[CATCH_PTR:%[a-zA-Z0-9\.]+]] = call ptr @__cxa_begin_catch( // CHECK: [[L_VAL:%[a-zA-Z0-9\.]+]] = load i32, ptr [[CATCH_PTR]], align 4 /// Storing to allocas... // CHECK-DAG: store i32 8, ptr [[M_ALLOC_VAL:%[a-zA-Z0-9\.]+]] // CHECK-DAG: store i32 [[L_VAL]], ptr [[L_ALLOC_VAL:%[a-zA-Z0-9\.]+]], align 4 /// Load into fake uses - expect M to precede L. // CHECK: [[M_FAKE_VAL:%[a-zA-Z0-9\.]+]] = load i32, ptr [[M_ALLOC_VAL]] // CHECK: call void (...) @llvm.fake.use(i32 [[M_FAKE_VAL]]) // CHECK: [[L_FAKE_VAL:%[a-zA-Z0-9\.]+]] = load i32, ptr [[L_ALLOC_VAL]] // CHECK: call void (...) @llvm.fake.use(i32 [[L_FAKE_VAL]]) void foo() { try { int k = bar(); } catch (int l) { /// The catch block contains a fake use for the local within its scope. int m = 8; } }