llvm-project/clang/test/CodeGen/ubsan-pointer-overflow.m
Nikita Popov 532dc62b90 [OpaquePtrs][Clang] Add -no-opaque-pointers to tests (NFC)
This adds -no-opaque-pointers to clang tests whose output will
change when opaque pointers are enabled by default. This is
intended to be part of the migration approach described in
https://discourse.llvm.org/t/enabling-opaque-pointers-by-default/61322/9.

The patch has been produced by replacing %clang_cc1 with
%clang_cc1 -no-opaque-pointers for tests that fail with opaque
pointers enabled. Worth noting that this doesn't cover all tests,
there's a remaining ~40 tests not using %clang_cc1 that will need
a followup change.

Differential Revision: https://reviews.llvm.org/D123115
2022-04-07 12:09:47 +02:00

28 lines
947 B
Objective-C

// RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-apple-darwin10 -w -emit-llvm -o - %s -fsanitize=pointer-overflow | FileCheck %s
// CHECK-LABEL: define{{.*}} void @variable_len_array_arith
void variable_len_array_arith(int n, int k) {
int vla[n];
int (*p)[n] = &vla;
// CHECK: getelementptr inbounds i32, i32* {{.*}}, i64 [[INC:%.*]]
// CHECK: @llvm.smul.with.overflow.i64(i64 4, i64 [[INC]]), !nosanitize
// CHECK-NOT: select
// CHECK: call void @__ubsan_handle_pointer_overflow{{.*}}
++p;
// CHECK: getelementptr inbounds i32, i32* {{.*}}, i64 [[IDXPROM:%.*]]
// CHECK: @llvm.smul.with.overflow.i64(i64 4, i64 [[IDXPROM]]), !nosanitize
// CHECK: select
// CHECK: call void @__ubsan_handle_pointer_overflow{{.*}}
p + k;
}
// CHECK-LABEL: define{{.*}} void @objc_id
void objc_id(id *p) {
// CHECK: add i64 {{.*}}, 8, !nosanitize
// CHECK-NOT: select
// CHECK: @__ubsan_handle_pointer_overflow{{.*}}
p++;
}