1; RUN: llc %s -o - -O0 -verify-machineinstrs -fast-isel=true | FileCheck %s
2
3target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
4target triple = "arm64-apple-ios8.0.0"
5
6; This test was trying to fold the sext %tmp142 in to the address arithmetic in %sunkaddr1.
7; This was incorrect as %.mux isn't available in the last bb.
8
9; CHECK: sxtw [[REG0:x[0-9]+]]
10; CHECK: str [[REG0]], [sp, [[OFFSET:#[0-9]+]]]
11; CHECK: ldr [[REG1:x[0-9]+]], [sp, [[OFFSET]]]
12; CHECK: strh wzr, [{{.*}}, [[REG1]], lsl #1]
13
14; Function Attrs: nounwind optsize ssp
15define void @EdgeLoop(i32 %dir, i32 %edge, i32 %width, i16* %tmp89, i32 %tmp136, i16 %tmp144) #0 {
16bb:
17  %tmp2 = icmp eq i32 %dir, 0
18  %.mux = select i1 %tmp2, i32 %width, i32 1
19  %tmp142 = sext i32 %.mux to i64
20  %tmp151 = shl nsw i64 %tmp142, 1
21  %tmp153 = getelementptr inbounds i16, i16* %tmp89, i64 %tmp151
22  %tmp154 = load i16, i16* %tmp153, align 2
23  %tmp155 = zext i16 %tmp154 to i32
24  br i1 %tmp2, label %bb225, label %bb212
25
26bb212:                                            ; preds = %bb
27  store i16 %tmp144, i16* %tmp89, align 2
28  ret void
29
30bb225:                                            ; preds = %bb
31  %tmp248 = trunc i32 %tmp155 to i16
32  store i16 %tmp248, i16* %tmp89, align 2
33  %sunkaddr = ptrtoint i16* %tmp89 to i64
34  %sunkaddr1 = mul i64 %tmp142, 2
35  %sunkaddr2 = add i64 %sunkaddr, %sunkaddr1
36  %sunkaddr3 = inttoptr i64 %sunkaddr2 to i16*
37  store i16 0, i16* %sunkaddr3, align 2
38  ret void
39}
40
41attributes #0 = { nounwind optsize ssp }
42