1 ; RUN: llc -march=hexagon -rdf-opt=0 < %s -pipeliner-experimental-cg=true | FileCheck %s
3 ; Test that we generate the correct name for a value in a prolog block. The
4 ; pipeliner was using an incorrect value for an instruction in the 2nd prolog
5 ; block for a value defined by a Phi. The result was that an instruction in
6 ; the 1st and 2nd prolog blocks contain the same operands.
8 ; CHECK: vcmp.gt([[VREG:(v[0-9]+)]].uh,v{{[0-9]+}}.uh)
9 ; CHECK-NOT: vcmp.gt([[VREG]].uh,v{{[0-9]+}}.uh)
12 define void @f0(<64 x i32> %a0, <32 x i32> %a1, i32 %a2) #0 {
14 br i1 undef, label %b1, label %b5
17 %v0 = tail call <32 x i32> @llvm.hexagon.V6.hi.128B(<64 x i32> %a0)
20 b2: ; preds = %b4, %b1
21 %v1 = phi <32 x i32> [ %a1, %b1 ], [ %v7, %b4 ]
24 b3: ; preds = %b3, %b2
25 %v2 = phi i32 [ 0, %b2 ], [ %v8, %b3 ]
26 %v3 = phi <32 x i32> [ zeroinitializer, %b2 ], [ %v0, %b3 ]
27 %v4 = phi <32 x i32> [ %v1, %b2 ], [ %v7, %b3 ]
28 %v5 = tail call <1024 x i1> @llvm.hexagon.V6.vgtuh.128B(<32 x i32> %v3, <32 x i32> undef)
29 %v6 = tail call <1024 x i1> @llvm.hexagon.V6.veqh.and.128B(<1024 x i1> %v5, <32 x i32> undef, <32 x i32> undef)
30 %v7 = tail call <32 x i32> @llvm.hexagon.V6.vaddhq.128B(<1024 x i1> %v6, <32 x i32> %v4, <32 x i32> undef)
31 %v8 = add nsw i32 %v2, 1
32 %v9 = icmp slt i32 %v8, %a2
33 br i1 %v9, label %b3, label %b4
36 br i1 undef, label %b5, label %b2
38 b5: ; preds = %b4, %b0
42 ; Function Attrs: nounwind readnone
43 declare <1024 x i1> @llvm.hexagon.V6.vgtuh.128B(<32 x i32>, <32 x i32>) #1
45 ; Function Attrs: nounwind readnone
46 declare <1024 x i1> @llvm.hexagon.V6.veqh.and.128B(<1024 x i1>, <32 x i32>, <32 x i32>) #1
48 ; Function Attrs: nounwind readnone
49 declare <32 x i32> @llvm.hexagon.V6.vaddhq.128B(<1024 x i1>, <32 x i32>, <32 x i32>) #1
51 ; Function Attrs: nounwind readnone
52 declare <32 x i32> @llvm.hexagon.V6.hi.128B(<64 x i32>) #1
54 attributes #0 = { nounwind "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length128b" }
55 attributes #1 = { nounwind readnone }