add a validity check that was missed, fixing a crash on the
new testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122662 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/LoopIdiom/basic.ll b/test/Transforms/LoopIdiom/basic.ll
index ef37b1d..ee93cb3 100644
--- a/test/Transforms/LoopIdiom/basic.ll
+++ b/test/Transforms/LoopIdiom/basic.ll
@@ -91,3 +91,26 @@
; CHECK-TODO: call void @llvm.memset.p0i8.i64(i8* %Base, i8 0, i64 100, i32 1, i1 false)
; CHECK-TODO-NOT: store
}
+
+; This can't be promoted: the memset is a store of a loop variant value.
+define void @test5(i8* %Base, i64 %Size) nounwind ssp {
+bb.nph: ; preds = %entry
+ br label %for.body
+
+for.body: ; preds = %bb.nph, %for.body
+ %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
+ %I.0.014 = getelementptr i8* %Base, i64 %indvar
+
+ %V = trunc i64 %indvar to i8
+ store i8 %V, i8* %I.0.014, align 1
+ %indvar.next = add i64 %indvar, 1
+ %exitcond = icmp eq i64 %indvar.next, %Size
+ br i1 %exitcond, label %for.end, label %for.body
+
+for.end: ; preds = %for.body, %entry
+ ret void
+; CHECK: @test5
+; CHECK-NOT: memset
+; CHECK: ret void
+}
+