1 // RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s --check-prefixes=CHECK,GNU,64 2 // RUN: %clang_cc1 -triple x86_64-pc-windows-msvc -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s --check-prefixes=CHECK,MSVC,64 3 // RUN: %clang_cc1 -triple aarch64-linux-gnu -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s --check-prefixes=CHECK,GNU,64 4 // RUN: %clang_cc1 -triple aarch64_be-linux-gnu -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s --check-prefixes=CHECK,GNU,64 5 // RUN: %clang_cc1 -triple arm-none-eabi -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s --check-prefixes=CHECK,ARM,GNU,32 6 7 // RUN: %clang_cc1 -triple arm64e-apple-ios -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all -fptrauth-calls | FileCheck %s --check-prefixes=CHECK,GNU,64,AUTH 8 // RUN: %clang_cc1 -triple aarch64-linux-gnu -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all -fptrauth-calls | FileCheck %s --check-prefixes=CHECK,GNU,64,AUTH 9 10 // GNU: define{{.*}} void @_Z3funv() #0 !func_sanitize ![[FUNCSAN:.*]] { 11 // MSVC: define{{.*}} void @"?fun@@YAXXZ"() #0 !func_sanitize ![[FUNCSAN:.*]] { 12 void fun() {} 13 14 // GNU-LABEL: define{{.*}} void @_Z6callerPFvvE(ptr noundef %f) 15 // MSVC-LABEL: define{{.*}} void @"?caller@@YAXP6AXXZ@Z"(ptr noundef %f) 16 // ARM: ptrtoint ptr {{.*}} to i32, !nosanitize !5 17 // ARM: and i32 {{.*}}, -2, !nosanitize !5 18 // ARM: inttoptr i32 {{.*}} to ptr, !nosanitize !5 19 // AUTH: %[[STRIPPED:.*]] = ptrtoint ptr {{.*}} to i64, !nosanitize 20 // AUTH: call i64 @llvm.ptrauth.auth(i64 %[[STRIPPED]], i32 0, i64 0), !nosanitize 21 // CHECK: getelementptr <{ i32, i32 }>, ptr {{.*}}, i32 -1, i32 0, !nosanitize 22 // CHECK: load i32, ptr {{.*}}, align {{.*}}, !nosanitize 23 // CHECK: icmp eq i32 {{.*}}, -1056584962, !nosanitize 24 // CHECK: br i1 {{.*}}, label %[[LABEL1:.*]], label %[[LABEL4:.*]], !nosanitize 25 // CHECK: [[LABEL1]]: 26 // CHECK: getelementptr <{ i32, i32 }>, ptr {{.*}}, i32 -1, i32 1, !nosanitize 27 // CHECK: load i32, ptr {{.*}}, align {{.*}}, !nosanitize 28 // GNU: icmp eq i32 {{.*}}, 905068220, !nosanitize 29 // MSVC: icmp eq i32 {{.*}}, -1600339357, !nosanitize 30 // CHECK: br i1 {{.*}}, label %[[LABEL3:.*]], label %[[LABEL2:[^,]*]], {{.*}}!nosanitize 31 // CHECK: [[LABEL2]]: 32 // 64: call void @__ubsan_handle_function_type_mismatch_abort(ptr @[[#]], i64 %[[#]]) #[[#]], !nosanitize 33 // 32: call void @__ubsan_handle_function_type_mismatch_abort(ptr @[[#]], i32 %[[#]]) #[[#]], !nosanitize 34 // CHECK-NEXT: unreachable, !nosanitize 35 // CHECK-EMPTY: 36 // CHECK-NEXT: [[LABEL3]]: 37 // CHECK: br label %[[LABEL4]], !nosanitize 38 // CHECK-EMPTY: 39 // CHECK-NEXT: [[LABEL4]]: 40 // CHECK-NEXT: call void 41 // CHECK-NEXT: ret void 42 void caller(void (*f)()) { f(); } 43 44 // GNU: ![[FUNCSAN]] = !{i32 -1056584962, i32 905068220} 45 // MSVC: ![[FUNCSAN]] = !{i32 -1056584962, i32 -1600339357} 46