34 lines · c
1// RUN: %clang_cc1 -triple x86_64-apple-macosx10.7.0 %s -emit-llvm -o - | FileCheck %s2 3// CHECK: %{{[a-z0-9]+}} = notail call i32 @callee0(i32 noundef %4// CHECK: %{{[a-z0-9]+}} = notail call i32 @callee1(i32 noundef %5 6// Check that indirect calls do not have the notail marker.7// CHECK: store ptr @callee1, ptr [[ALLOCA1:%[A-Za-z0-9]+]], align 88// CHECK: [[INDIRFUNC:%[0-9]+]] = load ptr, ptr [[ALLOCA1]], align 89// CHECK: %{{[a-z0-9]+}} = call i32 [[INDIRFUNC]](i32 noundef %{{[0-9]+}}10 11// CHECK: %{{[a-z0-9]+}} = call i32 @callee2(i32 noundef %12 13int callee0(int a) __attribute__((not_tail_called)) {14 return a + 1;15}16 17int callee1(int) __attribute__((not_tail_called));18 19int callee2(int);20 21typedef int (*FuncTy)(int);22 23int foo0(int a) {24 if (a > 1)25 return callee0(a);26 if (a == 1)27 return callee1(a);28 if (a < 0) {29 FuncTy F = callee1;30 return (*F)(a);31 }32 return callee2(a);33}34