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 // CHECK: [[L2]] 11 // CHECK-NEXT: call void @llvm.trap() 12 // CHECK-NEXT: unreachable 13 14 // CHECK: [[L1]] 15 // CHECK-NEXT: br i1 %[[B4]], label %[[L3:[0-9a-z_.]*]], label %[[L4:[0-9a-z_.]*]] 16 17 // CHECK: [[L4]] 18 // CHECK-NEXT: zext 19 // CHECK-NEXT: zext 20 // CHECK-NEXT: __ubsan_handle_divrem_overflow 21 22 // CHECK: [[L3]] 23 // CHECK-NEXT: sdiv i32 %[[N]], %[[D]] 24 return x / y; 25 } 26