1 files changed, 39 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/preserve-gep.ll b/test/Transforms/IndVarSimplify/preserve-gep.ll
new file mode 100644
index 000000000000..2c8c224fb905
--- /dev/null
+++ b/test/Transforms/IndVarSimplify/preserve-gep.ll
@@ -0,0 +1,39 @@
+; RUN: llvm-as < %s | opt -indvars | llvm-dis > %t
+; RUN: not grep ptrtoint %t
+; RUN: not grep inttoptr %t
+; RUN: grep getelementptr %t | count 1
+
+; Indvars shouldn't leave getelementptrs expanded out as
+; inttoptr+ptrtoint in its output in common cases.
+
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
+target triple = "x86_64-unknown-linux-gnu"
+	%struct.Foo = type { i32, i32, [10 x i32], i32 }
+
+define void @me(%struct.Foo* nocapture %Bar) nounwind {
+entry:
+	br i1 false, label %return, label %bb.nph
+
+bb.nph:		; preds = %entry
+	br label %bb
+
+bb:		; preds = %bb1, %bb.nph
+	%i.01 = phi i64 [ %4, %bb1 ], [ 0, %bb.nph ]		; <i64> [#uses=3]
+	%0 = getelementptr %struct.Foo* %Bar, i64 %i.01, i32 2, i64 3		; <i32*> [#uses=1]
+	%1 = load i32* %0, align 4		; <i32> [#uses=1]
+	%2 = mul i32 %1, 113		; <i32> [#uses=1]
+	%3 = getelementptr %struct.Foo* %Bar, i64 %i.01, i32 2, i64 3		; <i32*> [#uses=1]
+	store i32 %2, i32* %3, align 4
+	%4 = add i64 %i.01, 1		; <i64> [#uses=2]
+	br label %bb1
+
+bb1:		; preds = %bb
+	%phitmp = icmp sgt i64 %4, 19999		; <i1> [#uses=1]
+	br i1 %phitmp, label %bb1.return_crit_edge, label %bb
+
+bb1.return_crit_edge:		; preds = %bb1
+	br label %return
+
+return:		; preds = %bb1.return_crit_edge, %entry
+	ret void
+}