| ; RUN: llc %s -o - -O0 -verify-machineinstrs -fast-isel=true | FileCheck %s | 
 |  | 
 | target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" | 
 | target triple = "arm64-apple-ios8.0.0" | 
 |  | 
 | ; This test was trying to fold the sext %tmp142 in to the address arithmetic in %sunkaddr1. | 
 | ; This was incorrect as %.mux isn't available in the last bb. | 
 |  | 
 | ; CHECK: sxtw [[REG0:x[0-9]+]] | 
 | ; CHECK: str [[REG0]], [sp, [[OFFSET:#[0-9]+]]] | 
 | ; CHECK: ldr [[REG1:x[0-9]+]], [sp, [[OFFSET]]] | 
 | ; CHECK: strh wzr, [{{.*}}, [[REG1]], lsl #1] | 
 |  | 
 | ; Function Attrs: nounwind optsize ssp | 
 | define void @EdgeLoop(i32 %dir, i32 %edge, i32 %width, ptr %tmp89, i32 %tmp136, i16 %tmp144) #0 { | 
 | bb: | 
 |   %tmp2 = icmp eq i32 %dir, 0 | 
 |   %.mux = select i1 %tmp2, i32 %width, i32 1 | 
 |   %tmp142 = sext i32 %.mux to i64 | 
 |   %tmp151 = shl nsw i64 %tmp142, 1 | 
 |   %tmp153 = getelementptr inbounds i16, ptr %tmp89, i64 %tmp151 | 
 |   %tmp154 = load i16, ptr %tmp153, align 2 | 
 |   %tmp155 = zext i16 %tmp154 to i32 | 
 |   br i1 %tmp2, label %bb225, label %bb212 | 
 |  | 
 | bb212:                                            ; preds = %bb | 
 |   store i16 %tmp144, ptr %tmp89, align 2 | 
 |   ret void | 
 |  | 
 | bb225:                                            ; preds = %bb | 
 |   %tmp248 = trunc i32 %tmp155 to i16 | 
 |   store i16 %tmp248, ptr %tmp89, align 2 | 
 |   %sunkaddr = ptrtoint ptr %tmp89 to i64 | 
 |   %sunkaddr1 = mul i64 %tmp142, 2 | 
 |   %sunkaddr2 = add i64 %sunkaddr, %sunkaddr1 | 
 |   %sunkaddr3 = inttoptr i64 %sunkaddr2 to ptr | 
 |   store i16 0, ptr %sunkaddr3, align 2 | 
 |   ret void | 
 | } | 
 |  | 
 | attributes #0 = { nounwind optsize ssp } |