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(ptr 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, ptr null, align 4
16 %v4 = zext i32 %v3 to i64
17 %v6 = load i32, ptr %a0, align 4
18 %v7 = zext i32 %v6 to i64
19 %v8 = shl nuw i64 %v7, 32
21 %v10 = tail call i64 @llvm.hexagon.M2.vdmacs.s0(i64 0, i64 %v9, i64 %v9)
22 %v11 = add nsw i32 %v2, 4
23 %v12 = icmp slt i32 %v11, %v0
24 br i1 %v12, label %b1, label %b2
26 b2: ; preds = %b1, %b0
27 %v13 = phi i64 [ 0, %b0 ], [ %v10, %b1 ]
28 %v14 = tail call i64 @llvm.hexagon.S2.asr.r.vw(i64 %v13, i32 6)
29 store i64 %v14, ptr null, align 8
33 ; Function Attrs: nounwind readnone
34 declare i64 @llvm.hexagon.M2.vdmacs.s0(i64, i64, i64) #1
36 ; Function Attrs: nounwind readnone
37 declare i64 @llvm.hexagon.S2.asr.r.vw(i64, i32) #1
39 attributes #0 = { nounwind }
40 attributes #1 = { nounwind readnone }