1 ; RUN: llc -march=hexagon -enable-pipeliner < %s
4 ; Check that a dead REG_SEQUENCE doesn't ICE.
6 ; Function Attrs: nounwind
7 define void @f0(i32* nocapture %a0, i32 %a1) #0 {
9 %v0 = mul nsw i32 %a1, 4
10 %v1 = icmp sgt i32 %v0, 0
11 br i1 %v1, label %b1, label %b2
13 b1: ; preds = %b1, %b0
14 %v2 = phi i32 [ %v11, %b1 ], [ 0, %b0 ]
15 %v3 = load i32, i32* null, align 4
16 %v4 = zext i32 %v3 to i64
17 %v5 = getelementptr inbounds i32, i32* %a0, i32 0
18 %v6 = load i32, i32* %v5, align 4
19 %v7 = zext i32 %v6 to i64
20 %v8 = shl nuw i64 %v7, 32
22 %v10 = tail call i64 @llvm.hexagon.M2.vdmacs.s0(i64 0, i64 %v9, i64 %v9)
23 %v11 = add nsw i32 %v2, 4
24 %v12 = icmp slt i32 %v11, %v0
25 br i1 %v12, label %b1, label %b2
27 b2: ; preds = %b1, %b0
28 %v13 = phi i64 [ 0, %b0 ], [ %v10, %b1 ]
29 %v14 = tail call i64 @llvm.hexagon.S2.asr.r.vw(i64 %v13, i32 6)
30 store i64 %v14, i64* null, align 8
34 ; Function Attrs: nounwind readnone
35 declare i64 @llvm.hexagon.M2.vdmacs.s0(i64, i64, i64) #1
37 ; Function Attrs: nounwind readnone
38 declare i64 @llvm.hexagon.S2.asr.r.vw(i64, i32) #1
40 attributes #0 = { nounwind }
41 attributes #1 = { nounwind readnone }