derek.holloway
7502bf64a4
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103 lines
4.9 KiB
C
103 lines
4.9 KiB
C
// RUN: %clang_cc1 -triple arm64-apple-ios -fptrauth-intrinsics -emit-llvm %s -o - | FileCheck %s
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// RUN: %clang_cc1 -triple aarch64-elf -fptrauth-intrinsics -emit-llvm %s -o - | FileCheck %s
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//
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// RUN: %clang_cc1 -triple arm64-apple-ios -fptrauth-intrinsics -emit-llvm %s -o - -fexperimental-new-constant-interpreter | FileCheck %s
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// RUN: %clang_cc1 -triple aarch64-elf -fptrauth-intrinsics -emit-llvm %s -o - -fexperimental-new-constant-interpreter | FileCheck %s
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void (*fnptr)(void);
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long int_discriminator;
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void *ptr_discriminator;
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long signature;
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// CHECK-LABEL: define {{.*}}void @test_auth()
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void test_auth() {
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// CHECK: [[PTR:%.*]] = load ptr, ptr @fnptr,
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// CHECK-NEXT: [[DISC0:%.*]] = load ptr, ptr @ptr_discriminator,
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// CHECK-NEXT: [[T0:%.*]] = ptrtoint ptr [[PTR]] to i64
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// CHECK-NEXT: [[DISC:%.*]] = ptrtoint ptr [[DISC0]] to i64
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// CHECK-NEXT: [[T1:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[T0]], i32 0, i64 [[DISC]])
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// CHECK-NEXT: [[RESULT:%.*]] = inttoptr i64 [[T1]] to ptr
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// CHECK-NEXT: store ptr [[RESULT]], ptr @fnptr,
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fnptr = __builtin_ptrauth_auth(fnptr, 0, ptr_discriminator);
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}
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// CHECK-LABEL: define {{.*}}void @test_strip()
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void test_strip() {
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// CHECK: [[PTR:%.*]] = load ptr, ptr @fnptr,
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// CHECK-NEXT: [[T0:%.*]] = ptrtoint ptr [[PTR]] to i64
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// CHECK-NEXT: [[T1:%.*]] = call i64 @llvm.ptrauth.strip(i64 [[T0]], i32 0)
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// CHECK-NEXT: [[RESULT:%.*]] = inttoptr i64 [[T1]] to ptr
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// CHECK-NEXT: store ptr [[RESULT]], ptr @fnptr,
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fnptr = __builtin_ptrauth_strip(fnptr, 0);
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}
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// CHECK-LABEL: define {{.*}}void @test_sign_unauthenticated()
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void test_sign_unauthenticated() {
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// CHECK: [[PTR:%.*]] = load ptr, ptr @fnptr,
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// CHECK-NEXT: [[DISC0:%.*]] = load ptr, ptr @ptr_discriminator,
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// CHECK-NEXT: [[T0:%.*]] = ptrtoint ptr [[PTR]] to i64
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// CHECK-NEXT: [[DISC:%.*]] = ptrtoint ptr [[DISC0]] to i64
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// CHECK-NEXT: [[T1:%.*]] = call i64 @llvm.ptrauth.sign(i64 [[T0]], i32 0, i64 [[DISC]])
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// CHECK-NEXT: [[RESULT:%.*]] = inttoptr i64 [[T1]] to ptr
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// CHECK-NEXT: store ptr [[RESULT]], ptr @fnptr,
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fnptr = __builtin_ptrauth_sign_unauthenticated(fnptr, 0, ptr_discriminator);
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}
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// CHECK-LABEL: define {{.*}}void @test_auth_and_resign()
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void test_auth_and_resign() {
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// CHECK: [[PTR:%.*]] = load ptr, ptr @fnptr,
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// CHECK-NEXT: [[DISC0:%.*]] = load ptr, ptr @ptr_discriminator,
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// CHECK-NEXT: [[T0:%.*]] = ptrtoint ptr [[PTR]] to i64
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// CHECK-NEXT: [[DISC:%.*]] = ptrtoint ptr [[DISC0]] to i64
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// CHECK-NEXT: [[T1:%.*]] = call i64 @llvm.ptrauth.resign(i64 [[T0]], i32 0, i64 [[DISC]], i32 3, i64 15)
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// CHECK-NEXT: [[RESULT:%.*]] = inttoptr i64 [[T1]] to ptr
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// CHECK-NEXT: store ptr [[RESULT]], ptr @fnptr,
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fnptr = __builtin_ptrauth_auth_and_resign(fnptr, 0, ptr_discriminator, 3, 15);
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}
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// CHECK-LABEL: define {{.*}}void @test_auth_load_relative_and_sign()
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void test_auth_load_relative_and_sign() {
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// CHECK: [[PTR:%.*]] = load ptr, ptr @fnptr,
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// CHECK-NEXT: [[DISC0:%.*]] = load ptr, ptr @ptr_discriminator,
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// CHECK-NEXT: [[T0:%.*]] = ptrtoint ptr [[PTR]] to i64
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// CHECK-NEXT: [[DISC:%.*]] = ptrtoint ptr [[DISC0]] to i64
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// CHECK-NEXT: [[T1:%.*]] = call i64 @llvm.ptrauth.resign.load.relative(i64 [[T0]], i32 0, i64 [[DISC]], i32 3, i64 15, i64 16)
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// CHECK-NEXT: [[RESULT:%.*]] = inttoptr i64 [[T1]] to ptr
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// CHECK-NEXT: store ptr [[RESULT]], ptr @fnptr,
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fnptr = __builtin_ptrauth_auth_load_relative_and_sign(fnptr, 0, ptr_discriminator, 3, 15, 16L);
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}
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// CHECK-LABEL: define {{.*}}void @test_blend_discriminator()
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void test_blend_discriminator() {
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// CHECK: [[PTR:%.*]] = load ptr, ptr @fnptr,
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// CHECK-NEXT: [[DISC:%.*]] = load i64, ptr @int_discriminator,
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// CHECK-NEXT: [[T0:%.*]] = ptrtoint ptr [[PTR]] to i64
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// CHECK-NEXT: [[RESULT:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[T0]], i64 [[DISC]])
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// CHECK-NEXT: store i64 [[RESULT]], ptr @int_discriminator,
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int_discriminator = __builtin_ptrauth_blend_discriminator(fnptr, int_discriminator);
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}
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// CHECK-LABEL: define {{.*}}void @test_sign_generic_data()
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void test_sign_generic_data() {
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// CHECK: [[PTR:%.*]] = load ptr, ptr @fnptr,
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// CHECK-NEXT: [[DISC0:%.*]] = load ptr, ptr @ptr_discriminator,
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// CHECK-NEXT: [[T0:%.*]] = ptrtoint ptr [[PTR]] to i64
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// CHECK-NEXT: [[DISC:%.*]] = ptrtoint ptr [[DISC0]] to i64
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// CHECK-NEXT: [[RESULT:%.*]] = call i64 @llvm.ptrauth.sign.generic(i64 [[T0]], i64 [[DISC]])
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// CHECK-NEXT: store i64 [[RESULT]], ptr @signature,
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signature = __builtin_ptrauth_sign_generic_data(fnptr, ptr_discriminator);
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}
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// CHECK-LABEL: define {{.*}}void @test_string_discriminator()
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void test_string_discriminator() {
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// CHECK: [[X:%.*]] = alloca i32
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// Check a couple of random discriminators used by Swift.
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// CHECK: store i32 58298, ptr [[X]],
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int x = __builtin_ptrauth_string_discriminator("InitializeWithCopy");
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// CHECK: store i32 9112, ptr [[X]],
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x = __builtin_ptrauth_string_discriminator("DestroyArray");
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}
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