13 lines · c
1// RUN: %clang_cc1 -fsanitize=shift-base -emit-llvm %s -o - -triple x86_64-linux-gnu -fwrapv | FileCheck %s2 3// CHECK-LABEL: @lsh_overflow4int lsh_overflow(int a, int b) {5 // CHECK-NOT: br6 // CHECK-NOT: call void @__ubsan_7 // CHECK-NOT: call void @llvm.trap8 9 // CHECK: %[[RET:.*]] = shl i3210 // CHECK-NEXT: ret i32 %[[RET]]11 return a << b;12}13