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// RUN: %clang_cc1 %s -triple arm64e-apple-ios13 -fptrauth-calls -fptrauth-intrinsics -emit-llvm -o- -fptrauth-function-pointer-type-discrimination | FileCheck -check-prefixes CHECK,TYPE %s
// RUN: %clang_cc1 %s -triple aarch64-linux-gnu -fptrauth-calls -fptrauth-intrinsics -emit-llvm -o- -fptrauth-function-pointer-type-discrimination | FileCheck -check-prefixes CHECK,TYPE %s
// RUN: %clang_cc1 %s -triple arm64e-apple-ios13 -fptrauth-calls -fptrauth-intrinsics -emit-llvm -o- | FileCheck -check-prefixes CHECK,ZERO %s
// RUN: %clang_cc1 %s -triple aarch64-linux-gnu -fptrauth-calls -fptrauth-intrinsics -emit-llvm -o- | FileCheck -check-prefixes CHECK,ZERO %s
typedef void (*fptr_t)(void);
char *cptr;
void (*fptr)(void);
// CHECK-LABEL: define{{.*}} void @test1
void test1() {
// TYPE: [[LOAD:%.*]] = load ptr, ptr @cptr
// TYPE: [[TOINT:%.*]] = ptrtoint ptr [[LOAD]] to i64
// TYPE: call i64 @llvm.ptrauth.resign(i64 [[TOINT]], i32 0, i64 0, i32 0, i64 18983)
// TYPE: call void {{.*}}() [ "ptrauth"(i32 0, i64 18983) ]
// ZERO-NOT: @llvm.ptrauth.resign
(*(fptr_t)cptr)();
}
// CHECK-LABEL: define{{.*}} i8 @test2
char test2() {
return *(char *)fptr;
// TYPE: [[LOAD:%.*]] = load ptr, ptr @fptr
// TYPE: [[CMP:%.*]] = icmp ne ptr [[LOAD]], null
// TYPE-NEXT: br i1 [[CMP]], label %[[NONNULL:.*]], label %[[CONT:.*]]
// TYPE: [[NONNULL]]:
// TYPE: [[TOINT:%.*]] = ptrtoint ptr [[LOAD]] to i64
// TYPE: [[CALL:%.*]] = call i64 @llvm.ptrauth.resign(i64 [[TOINT]], i32 0, i64 18983, i32 0, i64 0)
// TYPE: [[TOPTR:%.*]] = inttoptr i64 [[CALL]] to ptr
// TYPE: [[CONT]]:
// TYPE: phi ptr [ null, {{.*}} ], [ [[TOPTR]], %[[NONNULL]] ]
// ZERO-NOT: @llvm.ptrauth.resign
}
// CHECK-LABEL: define{{.*}} void @test4
void test4() {
(*((fptr_t)(&*((char *)(&*(fptr_t)cptr)))))();
// CHECK: [[LOAD:%.*]] = load ptr, ptr @cptr
// TYPE-NEXT: [[CAST4:%.*]] = ptrtoint ptr [[LOAD]] to i64
// TYPE-NEXT: [[RESIGN:%.*]] = call i64 @llvm.ptrauth.resign(i64 [[CAST4]], i32 0, i64 0, i32 0, i64 18983)
// TYPE-NEXT: [[CAST5:%.*]] = inttoptr i64 [[RESIGN]] to ptr
// TYPE-NEXT: call void [[CAST5]]() [ "ptrauth"(i32 0, i64 18983) ]
// ZERO-NOT: @llvm.ptrauth.resign
// ZERO: call void [[LOAD]]() [ "ptrauth"(i32 0, i64 0) ]
}
void *vptr;
// CHECK-LABEL: define{{.*}} void @test5
void test5() {
vptr = &*(char *)fptr;
// TYPE: [[LOAD:%.*]] = load ptr, ptr @fptr
// TYPE-NEXT: [[CMP]] = icmp ne ptr [[LOAD]], null
// TYPE-NEXT: br i1 [[CMP]], label %[[NONNULL:.*]], label %[[CONT:.*]]
// TYPE: [[NONNULL]]:
// TYPE: [[RESIGN:%.*]] = call i64 @llvm.ptrauth.resign(i64 {{.*}}, i32 0, i64 18983, i32 0, i64 0)
// TYPE: [[CAST:%.*]] = inttoptr i64 [[RESIGN]] to ptr
// TYPE: [[CONT]]:
// TYPE: [[PHI:%.*]] = phi ptr [ null, {{.*}} ], [ [[CAST]], %[[NONNULL]] ]
// TYPE: store ptr [[PHI]], ptr @vptr
// ZERO-NOT: @llvm.ptrauth.resign
}
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