1 files changed, 36 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/lrev-existing-umin.ll b/test/Transforms/IndVarSimplify/lrev-existing-umin.ll
new file mode 100644
index 000000000000..961c9fd944d9
--- /dev/null
+++ b/test/Transforms/IndVarSimplify/lrev-existing-umin.ll
@@ -0,0 +1,36 @@
+; RUN: opt -S -indvars < %s | FileCheck %s
+
+define void @f(i32 %length.i.88, i32 %length.i, i8* %tmp12, i32 %tmp10, i8* %tmp8) {
+; CHECK-LABEL: @f(
+not_zero11.preheader:
+  %tmp13 = icmp ugt i32 %length.i, %length.i.88
+  %tmp14 = select i1 %tmp13, i32 %length.i.88, i32 %length.i
+  %tmp15 = icmp sgt i32 %tmp14, 0
+  br i1 %tmp15, label %not_zero11, label %not_zero11.postloop
+
+not_zero11:
+  %v_1 = phi i32 [ %tmp22, %not_zero11 ], [ 0, %not_zero11.preheader ]
+  %tmp16 = zext i32 %v_1 to i64
+  %tmp17 = getelementptr inbounds i8, i8* %tmp8, i64 %tmp16
+  %tmp18 = load i8, i8* %tmp17, align 1
+  %tmp19 = zext i8 %tmp18 to i32
+  %tmp20 = or i32 %tmp19, %tmp10
+  %tmp21 = trunc i32 %tmp20 to i8
+  %addr22 = getelementptr inbounds i8, i8* %tmp12, i64 %tmp16
+  store i8 %tmp21, i8* %addr22, align 1
+  %tmp22 = add nuw nsw i32 %v_1, 1
+  %tmp23 = icmp slt i32 %tmp22, %tmp14
+  br i1 %tmp23, label %not_zero11, label %main.exit.selector
+
+main.exit.selector:
+; CHECK-LABEL: main.exit.selector:
+; CHECK: %tmp24 = icmp slt i32 %tmp14, %length.i
+  %tmp24 = icmp slt i32 %tmp22, %length.i
+  br i1 %tmp24, label %not_zero11.postloop, label %leave
+
+leave:
+  ret void
+
+not_zero11.postloop:
+  ret void
+}