1 ; RUN: llc -march=amdgcn < %s | FileCheck %s
3 ; Check we can compile this bugpoint-reduced test without an
4 ; infinite loop in TLI.SimplifyDemandedBits() due to failure
5 ; to use return value of TLO.DAG.UpdateNodeOperands()
7 ; Check that code was generated; we know there will be
8 ; a s_endpgm, so check for it.
10 @0 = external unnamed_addr addrspace(3) global [462 x float], align 4
12 ; Function Attrs: nounwind readnone speculatable
13 declare i32 @llvm.amdgcn.workitem.id.y() #0
15 ; Function Attrs: nounwind readnone speculatable
16 declare i32 @llvm.amdgcn.workitem.id.x() #0
18 ; Function Attrs: nounwind readnone speculatable
19 declare float @llvm.fmuladd.f32(float, float, float) #0
22 define amdgpu_kernel void @foo(float addrspace(1)* noalias nocapture readonly %arg, float addrspace(1)* noalias nocapture readonly %arg1, float addrspace(1)* noalias nocapture %arg2, float %arg3) local_unnamed_addr !reqd_work_group_size !0 {
24 %tmp = tail call i32 @llvm.amdgcn.workitem.id.y()
25 %tmp4 = tail call i32 @llvm.amdgcn.workitem.id.x()
26 %tmp5 = and i32 %tmp, 15
27 %tmp6 = mul nuw nsw i32 %tmp5, 21
28 %tmp7 = sub i32 %tmp6, 0
29 %tmp8 = add i32 %tmp7, 0
30 %tmp9 = add i32 %tmp8, 0
31 %tmp10 = getelementptr inbounds [462 x float], [462 x float] addrspace(3)* @0, i32 0, i32 0
35 br i1 undef, label %bb37, label %bb38
37 bb12: ; preds = %bb30, %bb
38 br i1 false, label %.preheader, label %.loopexit145
40 .loopexit145: ; preds = %.preheader, %bb12
43 bb13: ; preds = %.loopexit, %.loopexit145
44 %tmp14 = phi i32 [ %tmp5, %.loopexit145 ], [ %tmp20, %.loopexit ]
45 %tmp15 = add nsw i32 %tmp14, -3
46 %tmp16 = mul i32 %tmp14, 21
47 br i1 undef, label %bb17, label %.loopexit
50 %tmp18 = mul i32 %tmp15, 224
51 %tmp19 = add i32 undef, %tmp18
54 .loopexit: ; preds = %bb21, %bb13
55 %tmp20 = add nuw nsw i32 %tmp14, 16
56 br i1 undef, label %bb13, label %bb26
58 bb21: ; preds = %bb21, %bb17
59 %tmp22 = phi i32 [ %tmp4, %bb17 ], [ %tmp25, %bb21 ]
60 %tmp23 = add i32 %tmp22, %tmp16
61 %tmp24 = getelementptr inbounds float, float addrspace(3)* %tmp10, i32 %tmp23
62 store float undef, float addrspace(3)* %tmp24, align 4
63 %tmp25 = add nuw i32 %tmp22, 8
64 br i1 undef, label %bb21, label %.loopexit
66 bb26: ; preds = %.loopexit
69 .preheader: ; preds = %.preheader, %bb12
70 %tmp27 = phi i32 [ %tmp28, %.preheader ], [ undef, %bb12 ]
71 %tmp28 = add nuw i32 %tmp27, 128
72 %tmp29 = icmp ult i32 %tmp28, 1568
73 br i1 %tmp29, label %.preheader, label %.loopexit145
76 br i1 undef, label %bb11, label %bb12
78 bb31: ; preds = %bb31, %bb26
79 %tmp32 = phi i32 [ %tmp9, %bb26 ], [ undef, %bb31 ]
80 %tmp33 = getelementptr inbounds [462 x float], [462 x float] addrspace(3)* @0, i32 0, i32 %tmp32
81 %tmp34 = load float, float addrspace(3)* %tmp33, align 4
82 %tmp35 = tail call float @llvm.fmuladd.f32(float %tmp34, float undef, float undef)
83 %tmp36 = tail call float @llvm.fmuladd.f32(float undef, float undef, float %tmp35)
84 br i1 undef, label %bb30, label %bb31
89 bb38: ; preds = %bb37, %bb11
93 attributes #0 = { nounwind readnone speculatable }
95 !0 = !{i32 8, i32 16, i32 1}