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diff --git a/test/CodeGen/ARM/2009-08-02-RegScavengerAssert-Neon.ll b/test/CodeGen/ARM/2009-08-02-RegScavengerAssert-Neon.ll
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+++ b/test/CodeGen/ARM/2009-08-02-RegScavengerAssert-Neon.ll
@@ -0,0 +1,29 @@
+; RUN: llvm-as < %s | llc -march=arm -mattr=+neon
+; PR4657
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:64"
+target triple = "armv7-apple-darwin9"
+
+define arm_apcscc <4 x i32> @scale(<4 x i32> %v, i32 %f) nounwind {
+entry:
+ %v_addr = alloca <4 x i32> ; <<4 x i32>*> [#uses=2]
+ %f_addr = alloca i32 ; <i32*> [#uses=2]
+ %retval = alloca <4 x i32> ; <<4 x i32>*> [#uses=2]
+ %0 = alloca <4 x i32> ; <<4 x i32>*> [#uses=2]
+ %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
+ store <4 x i32> %v, <4 x i32>* %v_addr
+ store i32 %f, i32* %f_addr
+ %1 = load <4 x i32>* %v_addr, align 16 ; <<4 x i32>> [#uses=1]
+ %2 = load i32* %f_addr, align 4 ; <i32> [#uses=1]
+ %3 = insertelement <4 x i32> undef, i32 %2, i32 0 ; <<4 x i32>> [#uses=1]
+ %4 = shufflevector <4 x i32> %3, <4 x i32> undef, <4 x i32> zeroinitializer ; <<4 x i32>> [#uses=1]
+ %5 = mul <4 x i32> %1, %4 ; <<4 x i32>> [#uses=1]
+ store <4 x i32> %5, <4 x i32>* %0, align 16
+ %6 = load <4 x i32>* %0, align 16 ; <<4 x i32>> [#uses=1]
+ store <4 x i32> %6, <4 x i32>* %retval, align 16
+ br label %return
+
+return: ; preds = %entry
+ %retval1 = load <4 x i32>* %retval ; <<4 x i32>> [#uses=1]
+ ret <4 x i32> %retval1
+}