1 files changed, 63 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/pr24356.ll b/test/Transforms/IndVarSimplify/pr24356.ll
new file mode 100644
index 000000000000..eac4204c0e16
--- /dev/null
+++ b/test/Transforms/IndVarSimplify/pr24356.ll
@@ -0,0 +1,63 @@
+; RUN: opt -S -indvars < %s | FileCheck %s
+
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.10.0"
+
+@a = common global i32 0, align 4
+
+; Function Attrs: nounwind ssp uwtable
+define void @fn1() {
+; CHECK-LABEL: @fn1(
+bb:
+  br label %bb4.preheader
+
+bb4.preheader:                                    ; preds = %bb, %bb16
+; CHECK-LABEL:  bb4.preheader:
+  %b.03 = phi i8 [ 0, %bb ], [ %tmp17, %bb16 ]
+; CHECK: %tmp9 = icmp ugt i8 %b.03, 1
+; CHECK-NOT: %tmp9 = icmp ugt i8 0, 1
+
+  %tmp9 = icmp ugt i8 %b.03, 1
+  br i1 %tmp9, label %bb4.preheader.bb18.loopexit.split_crit_edge, label %bb4.preheader.bb4.preheader.split_crit_edge
+
+bb4.preheader.bb4.preheader.split_crit_edge:      ; preds = %bb4.preheader
+  br label %bb4.preheader.split
+
+bb4.preheader.bb18.loopexit.split_crit_edge:      ; preds = %bb4.preheader
+  store i32 0, i32* @a, align 4
+  br label %bb18.loopexit.split
+
+bb4.preheader.split:                              ; preds = %bb4.preheader.bb4.preheader.split_crit_edge
+  br label %bb7
+
+bb4:                                              ; preds = %bb7
+  %tmp6 = icmp slt i32 %storemerge2, 0
+  br i1 %tmp6, label %bb7, label %bb16
+
+bb7:                                              ; preds = %bb4.preheader.split, %bb4
+  %storemerge2 = phi i32 [ 0, %bb4.preheader.split ], [ %tmp14, %bb4 ]
+  %tmp14 = add nsw i32 %storemerge2, 1
+  br i1 false, label %bb18.loopexit, label %bb4
+
+bb16:                                             ; preds = %bb4
+  %tmp14.lcssa5 = phi i32 [ %tmp14, %bb4 ]
+  %tmp17 = add i8 %b.03, -1
+  %tmp2 = icmp eq i8 %tmp17, -2
+  br i1 %tmp2, label %bb18.loopexit1, label %bb4.preheader
+
+bb18.loopexit:                                    ; preds = %bb7
+  br label %bb18.loopexit.split
+
+bb18.loopexit.split:                              ; preds = %bb4.preheader.bb18.loopexit.split_crit_edge, %bb18.loopexit
+  br label %bb18
+
+bb18.loopexit1:                                   ; preds = %bb16
+  %tmp14.lcssa5.lcssa = phi i32 [ %tmp14.lcssa5, %bb16 ]
+  store i32 %tmp14.lcssa5.lcssa, i32* @a, align 4
+  br label %bb18
+
+bb18:                                             ; preds = %bb18.loopexit1, %bb18.loopexit.split
+  ret void
+}
+
+declare void @abort()