tighten test2, add a test that it doesn't get transformed in the invalid edge case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84401 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Analysis/BasicAA/modref.ll b/test/Analysis/BasicAA/modref.ll
index b3d93ac..a089864 100644
--- a/test/Analysis/BasicAA/modref.ll
+++ b/test/Analysis/BasicAA/modref.ll
@@ -40,7 +40,7 @@
define i8 @test2(i8* %P) {
; CHECK: @test2
- %P2 = getelementptr i8* %P, i32 1000
+ %P2 = getelementptr i8* %P, i32 127
store i8 1, i8* %P2 ;; Not dead across memset
call void @llvm.memset.i8(i8* %P, i8 2, i8 127, i32 0)
%A = load i8* %P2
@@ -48,6 +48,17 @@
; CHECK: ret i8 1
}
+define i8 @test2a(i8* %P) {
+; CHECK: @test2
+ %P2 = getelementptr i8* %P, i32 126
+ store i8 1, i8* %P2 ;; Dead, clobbered by memset.
+ call void @llvm.memset.i8(i8* %P, i8 2, i8 127, i32 0)
+ %A = load i8* %P2
+ ret i8 %A
+; CHECK: %A = load i8* %P2
+; CHECK: ret i8 %A
+}
+
define void @test3(i8* %P) {
; CHECK: @test3
%P2 = getelementptr i8* %P, i32 2