1 ; RUN: llc %s -o - -verify-machineinstrs | FileCheck %s
3 target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
4 target triple = "thumbv7-unknown-unknown"
6 %struct.ref_s = type { %union.v, i16, i16 }
7 %union.v = type { i32 }
8 %struct.gs_color_s = type { i16, i16, i16, i16, i8, i8 }
10 ; In this case, the if converter was cloning the return instruction so that we had
12 ; return [pred] r2<dead,def>
15 ; The problem here was that the dead def on the first return was making the machine verifier
16 ; think that the load read from an undefined register. We need to remove the dead flag from
17 ; the return, and also add an implicit use of the prior value of r2.
21 ; Function Attrs: minsize nounwind optsize ssp
22 define i32 @test(%struct.ref_s* %pref1, %struct.ref_s* %pref2, %struct.gs_color_s** %tmp152) #0 {
24 %nref = alloca %struct.ref_s, align 4
25 %tmp46 = call %struct.ref_s* @name_string_ref(%struct.ref_s* %pref1, %struct.ref_s* %nref) #2
26 %tmp153 = load %struct.gs_color_s*, %struct.gs_color_s** %tmp152, align 4
27 %tmp154 = bitcast %struct.ref_s* %pref2 to %struct.gs_color_s**
28 %tmp155 = load %struct.gs_color_s*, %struct.gs_color_s** %tmp154, align 4
29 %tmp162 = getelementptr inbounds %struct.gs_color_s, %struct.gs_color_s* %tmp153, i32 0, i32 1
30 %tmp163 = load i16, i16* %tmp162, align 2
31 %tmp164 = getelementptr inbounds %struct.gs_color_s, %struct.gs_color_s* %tmp155, i32 0, i32 1
32 %tmp165 = load i16, i16* %tmp164, align 2
33 %tmp166 = icmp eq i16 %tmp163, %tmp165
34 br i1 %tmp166, label %bb167, label %bb173
37 %tmp168 = getelementptr inbounds %struct.gs_color_s, %struct.gs_color_s* %tmp153, i32 0, i32 2
38 %tmp169 = load i16, i16* %tmp168, align 2
39 %tmp170 = getelementptr inbounds %struct.gs_color_s, %struct.gs_color_s* %tmp155, i32 0, i32 2
40 %tmp171 = load i16, i16* %tmp170, align 2
41 %tmp172 = icmp eq i16 %tmp169, %tmp171
44 bb173: ; preds = %bb167, %bb
45 %tmp174 = phi i1 [ false, %bb ], [ %tmp172, %bb167 ]
46 %tmp175 = zext i1 %tmp174 to i32
50 ; Function Attrs: minsize optsize
51 declare %struct.ref_s* @name_string_ref(%struct.ref_s*, %struct.ref_s*) #1
53 attributes #0 = { minsize nounwind optsize }
54 attributes #1 = { minsize optsize }
55 attributes #2 = { minsize nounwind optsize }