def int_hwasan_check_memaccess :
Intrinsic<[], [llvm_ptr_ty, llvm_ptr_ty, llvm_i32_ty],
- [IntrInaccessibleMemOnly, ImmArg<ArgIndex<2>>]>;
+ [ImmArg<ArgIndex<2>>]>;
def int_hwasan_check_memaccess_shortgranules :
Intrinsic<[], [llvm_ptr_ty, llvm_ptr_ty, llvm_i32_ty],
- [IntrInaccessibleMemOnly, ImmArg<ArgIndex<2>>]>;
+ [ImmArg<ArgIndex<2>>]>;
// Xray intrinsics
//===----------------------------------------------------------------------===//
--- /dev/null
+; Make sure memaccess checks preceed the following reads.
+;
+; RUN: opt < %s -S -enable-new-pm=0 -hwasan -basic-aa -memdep -print-memdeps -analyze -mtriple aarch64-linux-android30 | FileCheck %s
+
+target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
+target triple = "aarch64--linux-android10000"
+
+declare void @use32(i32*)
+
+define i32 @test_alloca() sanitize_hwaddress {
+entry:
+ %x = alloca i32, align 4
+ call void @use32(i32* nonnull %x)
+ ; CHECK: Clobber from: call void @llvm.hwasan.check.memaccess.shortgranule
+ ; CHECK-NEXT: load i32, i32* %x.hwasan, align 4
+ %y = load i32, i32* %x
+ ; CHECK: Clobber from: %y = load i32, i32* %x.hwasan, align 4
+ ; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 1 {{.*}}, i8 0, i64 1, i1 false)
+ ret i32 %y
+}