1 // RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -emit-llvm -o - %s -fsanitize=signed-integer-overflow,integer-divide-by-zero -fsanitize-trap=integer-divide-by-zero | FileCheck %s 2 3 int f(int x, int y) { 4 // CHECK: %[[B1:.*]] = icmp ne i32 %[[D:.*]], 0 5 // CHECK: %[[B2:.*]] = icmp ne i32 %[[N:.*]], -2147483648 6 // CHECK: %[[B3:.*]] = icmp ne i32 %[[D]], -1 7 // CHECK: %[[B4:.*]] = or i1 %[[B2]], %[[B3]] 8 // CHECK: br i1 %[[B1]], label %[[L1:[0-9a-z_.]*]], label %[[L2:[0-9a-z_.]*]] 9 10 // {{^|:}} used to match both Debug form of the captured label 11 // cont: 12 // and Release form 13 // ; <label>:14 14 // But avoids false matches inside other numbers such as [114 x i8]. 15 // CHECK: {{^|:}}[[L2]] 16 // CHECK-NEXT: call void @llvm.trap() 17 // CHECK-NEXT: unreachable 18 19 // CHECK: {{^|:}}[[L1]] 20 // CHECK-NEXT: br i1 %[[B4]], label %[[L3:[0-9a-z_.]*]], label %[[L4:[0-9a-z_.]*]] 21 22 // CHECK: {{^|:}}[[L4]] 23 // CHECK-NEXT: zext 24 // CHECK-NEXT: zext 25 // CHECK-NEXT: __ubsan_handle_divrem_overflow 26 27 // CHECK: {{^|:}}[[L3]] 28 // CHECK-NEXT: sdiv i32 %[[N]], %[[D]] 29 return x / y; 30 } 31
