|  | ; RUN: opt < %s -S -scalarrepl | FileCheck %s | 
|  | 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-n8:16:32:64" | 
|  | target triple = "x86_64-apple-darwin11.0.1" | 
|  |  | 
|  | ; CHECK: test | 
|  | ; CHECK-NOT: alloca | 
|  |  | 
|  | define void @test() nounwind { | 
|  | entry: | 
|  | %a156286 = alloca [4 x <4 x float>], align 16 | 
|  | br i1 undef, label %cif_done, label %for_test158.preheader | 
|  |  | 
|  | for_test158.preheader:                            ; preds = %entry | 
|  | %a156286305 = bitcast [4 x <4 x float>]* %a156286 to i8* | 
|  | call void @llvm.memset.p0i8.i64(i8* %a156286305, i8 -1, i64 64, i32 16, i1 false) | 
|  | unreachable | 
|  |  | 
|  | cif_done:                                         ; preds = %entry | 
|  | ret void | 
|  | } | 
|  |  | 
|  | declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind |