[PATCH] D35510: Add element-atomic mem intrinsic canary tests for Memory Sanitizer.

Daniel Neilson via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Jul 17 18:07:39 PDT 2017


This revision was automatically updated to reflect the committed changes.
Closed by commit rL308251: Add element-atomic mem intrinsic canary tests for Memory Sanitizer. (authored by dneilson).

Repository:
  rL LLVM

https://reviews.llvm.org/D35510

Files:
  llvm/trunk/test/Instrumentation/MemorySanitizer/msan_basic.ll


Index: llvm/trunk/test/Instrumentation/MemorySanitizer/msan_basic.ll
===================================================================
--- llvm/trunk/test/Instrumentation/MemorySanitizer/msan_basic.ll
+++ llvm/trunk/test/Instrumentation/MemorySanitizer/msan_basic.ll
@@ -238,6 +238,41 @@
 ; CHECK: call i8* @__msan_memmove
 ; CHECK: ret void
 
+;; ------------
+;; Placeholder tests that will fail once element atomic @llvm.mem[cpy|move|set] instrinsics have
+;; been added to the MemIntrinsic class hierarchy. These will act as a reminder to
+;; verify that MSAN handles these intrinsics properly once they have been
+;; added to that class hierarchy.
+declare void @llvm.memset.element.unordered.atomic.p0i8.i64(i8* nocapture writeonly, i8, i64, i32) nounwind
+declare void @llvm.memmove.element.unordered.atomic.p0i8.p0i8.i64(i8* nocapture writeonly, i8* nocapture readonly, i64, i32) nounwind
+declare void @llvm.memcpy.element.unordered.atomic.p0i8.p0i8.i64(i8* nocapture writeonly, i8* nocapture readonly, i64, i32) nounwind
+
+define void @atomic_memcpy(i8* nocapture %x, i8* nocapture %y) nounwind {
+  ; CHECK-LABEL: atomic_memcpy
+  ; CHECK-NEXT: call void @llvm.memcpy.element.unordered.atomic.p0i8.p0i8.i64(i8* align 1 %x, i8* align 2 %y, i64 16, i32 1)
+  ; CHECK-NEXT: ret void
+  call void @llvm.memcpy.element.unordered.atomic.p0i8.p0i8.i64(i8* align 1 %x, i8* align 2 %y, i64 16, i32 1)
+  ret void
+}
+
+define void @atomic_memmove(i8* nocapture %x, i8* nocapture %y) nounwind {
+  ; CHECK-LABEL: atomic_memmove
+  ; CHECK-NEXT: call void @llvm.memmove.element.unordered.atomic.p0i8.p0i8.i64(i8* align 1 %x, i8* align 2 %y, i64 16, i32 1)
+  ; CHECK-NEXT: ret void
+  call void @llvm.memmove.element.unordered.atomic.p0i8.p0i8.i64(i8* align 1 %x, i8* align 2 %y, i64 16, i32 1)
+  ret void
+}
+
+define void @atomic_memset(i8* nocapture %x) nounwind {
+  ; CHECK-LABEL: atomic_memset
+  ; CHECK-NEXT: call void @llvm.memset.element.unordered.atomic.p0i8.i64(i8* align 1 %x, i8 88, i64 16, i32 1)
+  ; CHECK-NEXT: ret void
+  call void @llvm.memset.element.unordered.atomic.p0i8.i64(i8* align 1 %x, i8 88, i64 16, i32 1)
+  ret void
+}
+
+;; ------------
+
 
 ; Check that we propagate shadow for "select"
 


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D35510.107003.patch
Type: text/x-patch
Size: 2227 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20170718/702f273d/attachment.bin>


More information about the llvm-commits mailing list