1 // RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-linux-gnu -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s 2 3 // CHECK: @[[PROXY:.*]] = private unnamed_addr constant i8* bitcast ({ i8*, i8* }* @_ZTIFvvE to i8*) 4 // CHECK: define{{.*}} void @_Z3funv() #0 !func_sanitize ![[FUNCSAN:.*]] { 5 void fun() {} 6 7 // CHECK-LABEL: define{{.*}} void @_Z6callerPFvvE(void ()* noundef %f) 8 // CHECK: getelementptr <{ i32, i32 }>, <{ i32, i32 }>* {{.*}}, i32 0, i32 0, !nosanitize 9 // CHECK: load i32, i32* {{.*}}, align {{.*}}, !nosanitize 10 // CHECK: icmp eq i32 {{.*}}, 846595819, !nosanitize 11 // CHECK: br i1 {{.*}}, label %[[LABEL1:.*]], label %[[LABEL4:.*]], !nosanitize 12 // CHECK: [[LABEL1]]: 13 // CHECK: getelementptr <{ i32, i32 }>, <{ i32, i32 }>* {{.*}}, i32 0, i32 1, !nosanitize 14 // CHECK: load i32, i32* {{.*}}, align {{.*}}, !nosanitize 15 // CHECK: icmp eq i8* {{.*}}, bitcast ({ i8*, i8* }* @_ZTIFvvE to i8*), !nosanitize 16 // CHECK: br i1 {{.*}}, label %[[LABEL3:.*]], label %[[LABEL2:[^,]*]], {{.*}}!nosanitize 17 // CHECK: [[LABEL2]]: 18 // CHECK: call void @__ubsan_handle_function_type_mismatch_v1_abort(i8* {{.*}}, i64 {{.*}}, i64 {{.*}}, i64 {{.*}}) #{{.*}}, !nosanitize 19 // CHECK-NOT: unreachable 20 // CHECK: br label %[[LABEL3]], !nosanitize 21 // CHECK: [[LABEL3]]: 22 // CHECK: br label %[[LABEL4]], !nosanitize 23 void caller(void (*f)()) { f(); } 24 25 // CHECK: ![[FUNCSAN]] = !{i32 846595819, i8** @[[PROXY]]} 26