derek.holloway
7502bf64a4
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61 lines
3.4 KiB
C++
61 lines
3.4 KiB
C++
// 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
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// 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
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// RUN: %clang_cc1 -triple aarch64-linux-gnu -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s --check-prefixes=CHECK,GNU,64
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// 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
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// 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
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// 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
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// 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
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// GNU: define{{.*}} void @_Z3funv() #0 !func_sanitize ![[FUNCSAN:.*]] {
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// MSVC: define{{.*}} void @"?fun@@YAXXZ"() #0 !func_sanitize ![[FUNCSAN:.*]] {
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void fun() {}
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// GNU-LABEL: define{{.*}} void @_Z6callerPFvvE(ptr noundef %f)
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// MSVC-LABEL: define{{.*}} void @"?caller@@YAXP6AXXZ@Z"(ptr noundef %f)
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// ARM: call ptr @llvm.ptrmask.p0.i32(ptr {{.*}}, i32 -2), !nosanitize !6
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// AUTH: %[[STRIPPED:.*]] = ptrtoint ptr {{.*}} to i64, !nosanitize
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// AUTH: call i64 @llvm.ptrauth.auth(i64 %[[STRIPPED]], i32 0, i64 0), !nosanitize
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// CHECK: getelementptr <{ i32, i32 }>, ptr {{.*}}, i32 -1, i32 0, !nosanitize
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// CHECK: load i32, ptr {{.*}}, align {{.*}}, !nosanitize
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// CHECK: icmp eq i32 {{.*}}, -1056584962, !nosanitize
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// CHECK: br i1 {{.*}}, label %[[LABEL1:.*]], label %[[LABEL4:.*]], !nosanitize
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// CHECK: [[LABEL1]]:
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// CHECK: getelementptr <{ i32, i32 }>, ptr {{.*}}, i32 -1, i32 1, !nosanitize
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// CHECK: load i32, ptr {{.*}}, align {{.*}}, !nosanitize
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// GNU: icmp eq i32 {{.*}}, 905068220, !nosanitize
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// MSVC: icmp eq i32 {{.*}}, -1600339357, !nosanitize
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// CHECK: br i1 {{.*}}, label %[[LABEL3:.*]], label %[[LABEL2:[^,]*]], {{.*}}!nosanitize
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// CHECK: [[LABEL2]]:
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// 64: call void @__ubsan_handle_function_type_mismatch_abort(ptr @[[#]], i64 %[[#]]) #[[#]], !nosanitize
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// 32: call void @__ubsan_handle_function_type_mismatch_abort(ptr @[[#]], i32 %[[#]]) #[[#]], !nosanitize
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// CHECK-NEXT: unreachable, !nosanitize
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// CHECK-EMPTY:
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// CHECK-NEXT: [[LABEL3]]:
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// CHECK: br label %[[LABEL4]], !nosanitize
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// CHECK-EMPTY:
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// CHECK-NEXT: [[LABEL4]]:
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// CHECK-NEXT: call void
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// CHECK-NEXT: ret void
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void caller(void (*f)()) { f(); }
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// GNU: define{{.*}} void @_Z4fun2v() #0 {
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// MSVC: define{{.*}} void @"?fun2@@YAXXZ"() #0 {
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[[clang::cfi_unchecked_callee]]
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void fun2() {}
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typedef void (*unchecked_t)() [[clang::cfi_unchecked_callee]];
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// GNU-LABEL: define{{.*}} void @_Z7caller2PFvvE(ptr noundef %f)
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// MSVC-LABEL: define{{.*}} void @"?caller2@@YAXP6AXXZ@Z"(ptr noundef %f)
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[ADDR:%.*]] = alloca ptr
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// CHECK-NEXT: store ptr %f, ptr [[ADDR]]
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// CHECK-NEXT: [[FUNC:%.*]] = load ptr, ptr [[ADDR]]
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// CHECK-NEXT: call void [[FUNC]]()
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// CHECK-NEXT: ret void
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void caller2(unchecked_t f) { f(); }
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// GNU: ![[FUNCSAN]] = !{i32 -1056584962, i32 905068220}
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// MSVC: ![[FUNCSAN]] = !{i32 -1056584962, i32 -1600339357}
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