forked from OSchip/llvm-project
107 lines
5.9 KiB
LLVM
107 lines
5.9 KiB
LLVM
; RUN: llc -march=hexagon < %s -pipeliner-experimental-cg=true | FileCheck %s
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; Test that the pipeliner generates correct code when attempting to reuse
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; an existing phi. This test case contains a phi that references another
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; phi (the value from the previous iteration), and when there is a use that
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; is schedule in a later iteration. When this occurs, the pipeliner was
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; using a value from the wrong iteration.
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; CHECK: loop0(.LBB0_[[LOOP:.]],
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; CHECK: .LBB0_[[LOOP]]:
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; CHECK: vlalign([[VREG1:v([0-9]+)]],[[VREG2:v([0-9]+)]],#2)
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; CHECK: [[VREG2]]:{{[0-9]+}} = vcombine([[VREG1]],v{{[0-9]+}})
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; CHECK: }{{[ \t]*}}:endloop0
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; Function Attrs: nounwind
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define void @f0(i32 %a0, i32 %a1, i8* %a2, <16 x i32>* %a3) #0 {
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b0:
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%v0 = shl nsw i32 %a0, 1
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%v1 = sub i32 0, %v0
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%v2 = sub i32 0, %a0
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%v3 = getelementptr inbounds i8, i8* %a2, i32 %v1
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%v4 = getelementptr inbounds i8, i8* %a2, i32 %v2
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%v5 = getelementptr inbounds i8, i8* %a2, i32 %a0
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%v6 = getelementptr inbounds i8, i8* %a2, i32 %v0
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%v7 = getelementptr inbounds i8, i8* %v6, i32 64
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%v8 = bitcast i8* %v7 to <16 x i32>*
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%v9 = getelementptr inbounds i8, i8* %v5, i32 64
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%v10 = bitcast i8* %v9 to <16 x i32>*
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%v11 = getelementptr inbounds i8, i8* %a2, i32 64
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%v12 = bitcast i8* %v11 to <16 x i32>*
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%v13 = getelementptr inbounds i8, i8* %v4, i32 64
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%v14 = bitcast i8* %v13 to <16 x i32>*
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%v15 = getelementptr inbounds i8, i8* %v3, i32 64
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%v16 = bitcast i8* %v15 to <16 x i32>*
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br label %b1
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b1: ; preds = %b1, %b0
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%v17 = phi <16 x i32>* [ %v59, %b1 ], [ %a3, %b0 ]
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%v18 = phi <16 x i32>* [ %v34, %b1 ], [ %v8, %b0 ]
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%v19 = phi <16 x i32>* [ %v32, %b1 ], [ %v10, %b0 ]
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%v20 = phi <16 x i32>* [ %v30, %b1 ], [ %v12, %b0 ]
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%v21 = phi <16 x i32>* [ %v28, %b1 ], [ %v14, %b0 ]
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%v22 = phi <16 x i32>* [ %v26, %b1 ], [ %v16, %b0 ]
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%v23 = phi <32 x i32> [ %v39, %b1 ], [ undef, %b0 ]
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%v24 = phi <32 x i32> [ %v23, %b1 ], [ undef, %b0 ]
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%v25 = phi i32 [ %v60, %b1 ], [ %a1, %b0 ]
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%v26 = getelementptr inbounds <16 x i32>, <16 x i32>* %v22, i32 1
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%v27 = load <16 x i32>, <16 x i32>* %v22, align 64
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%v28 = getelementptr inbounds <16 x i32>, <16 x i32>* %v21, i32 1
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%v29 = load <16 x i32>, <16 x i32>* %v21, align 64
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%v30 = getelementptr inbounds <16 x i32>, <16 x i32>* %v20, i32 1
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%v31 = load <16 x i32>, <16 x i32>* %v20, align 64
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%v32 = getelementptr inbounds <16 x i32>, <16 x i32>* %v19, i32 1
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%v33 = load <16 x i32>, <16 x i32>* %v19, align 64
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%v34 = getelementptr inbounds <16 x i32>, <16 x i32>* %v18, i32 1
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%v35 = load <16 x i32>, <16 x i32>* %v18, align 64
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%v36 = tail call <32 x i32> @llvm.hexagon.V6.vaddubh(<16 x i32> %v27, <16 x i32> %v35) #2
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%v37 = tail call <32 x i32> @llvm.hexagon.V6.vmpybus.acc(<32 x i32> %v36, <16 x i32> %v31, i32 101058054) #2
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%v38 = tail call <32 x i32> @llvm.hexagon.V6.vcombine(<16 x i32> %v33, <16 x i32> %v29) #2
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%v39 = tail call <32 x i32> @llvm.hexagon.V6.vmpabus.acc(<32 x i32> %v37, <32 x i32> %v38, i32 67372036) #2
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%v40 = tail call <16 x i32> @llvm.hexagon.V6.lo(<32 x i32> %v23) #2
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%v41 = tail call <16 x i32> @llvm.hexagon.V6.lo(<32 x i32> %v24) #2
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%v42 = tail call <16 x i32> @llvm.hexagon.V6.vlalignbi(<16 x i32> %v40, <16 x i32> %v41, i32 2) #2
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%v43 = tail call <16 x i32> @llvm.hexagon.V6.hi(<32 x i32> %v23) #2
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%v44 = tail call <16 x i32> @llvm.hexagon.V6.hi(<32 x i32> %v24) #2
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%v45 = tail call <16 x i32> @llvm.hexagon.V6.vlalignbi(<16 x i32> %v43, <16 x i32> %v44, i32 2) #2
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%v46 = tail call <16 x i32> @llvm.hexagon.V6.lo(<32 x i32> %v39) #2
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%v47 = tail call <16 x i32> @llvm.hexagon.V6.valignbi(<16 x i32> %v46, <16 x i32> %v40, i32 2) #2
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%v48 = tail call <16 x i32> @llvm.hexagon.V6.hi(<32 x i32> %v39) #2
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%v49 = tail call <16 x i32> @llvm.hexagon.V6.valignbi(<16 x i32> %v48, <16 x i32> %v43, i32 2) #2
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%v50 = tail call <16 x i32> @llvm.hexagon.V6.vaddh(<16 x i32> %v45, <16 x i32> %v43) #2
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%v51 = tail call <16 x i32> @llvm.hexagon.V6.vaddh(<16 x i32> %v40, <16 x i32> %v47) #2
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%v52 = tail call <16 x i32> @llvm.hexagon.V6.vaddh(<16 x i32> %v42, <16 x i32> %v47) #2
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%v53 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwb.acc(<16 x i32> %v52, <16 x i32> %v40, i32 101058054) #2
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%v54 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwb.acc(<16 x i32> %v53, <16 x i32> %v50, i32 67372036) #2
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%v55 = tail call <16 x i32> @llvm.hexagon.V6.vaddh(<16 x i32> %v45, <16 x i32> %v49) #2
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%v56 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwb.acc(<16 x i32> %v55, <16 x i32> %v43, i32 101058054) #2
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%v57 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwb.acc(<16 x i32> %v56, <16 x i32> %v51, i32 67372036) #2
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%v58 = tail call <16 x i32> @llvm.hexagon.V6.vshuffob(<16 x i32> %v57, <16 x i32> %v54) #2
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%v59 = getelementptr inbounds <16 x i32>, <16 x i32>* %v17, i32 1
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store <16 x i32> %v58, <16 x i32>* %v17, align 64
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%v60 = add nsw i32 %v25, -64
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%v61 = icmp sgt i32 %v25, 128
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br i1 %v61, label %b1, label %b2
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b2: ; preds = %b1
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ret void
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}
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; Function Attrs: nounwind readnone
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declare <32 x i32> @llvm.hexagon.V6.vcombine(<16 x i32>, <16 x i32>) #1
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declare <32 x i32> @llvm.hexagon.V6.vmpabus.acc(<32 x i32>, <32 x i32>, i32) #1
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declare <16 x i32> @llvm.hexagon.V6.hi(<32 x i32>) #1
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declare <16 x i32> @llvm.hexagon.V6.vlalignbi(<16 x i32>, <16 x i32>, i32) #1
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declare <16 x i32> @llvm.hexagon.V6.lo(<32 x i32>) #1
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declare <16 x i32> @llvm.hexagon.V6.valignbi(<16 x i32>, <16 x i32>, i32) #1
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declare <16 x i32> @llvm.hexagon.V6.vaddh(<16 x i32>, <16 x i32>) #1
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declare <32 x i32> @llvm.hexagon.V6.vaddubh(<16 x i32>, <16 x i32>) #1
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declare <32 x i32> @llvm.hexagon.V6.vmpybus.acc(<32 x i32>, <16 x i32>, i32) #1
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declare <16 x i32> @llvm.hexagon.V6.vmpyiwb.acc(<16 x i32>, <16 x i32>, i32) #1
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declare <16 x i32> @llvm.hexagon.V6.vshuffob(<16 x i32>, <16 x i32>) #1
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attributes #0 = { nounwind "target-cpu"="hexagonv65" "target-features"="+hvxv65,+hvx-length64b" }
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attributes #1 = { nounwind readnone }
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attributes #2 = { nounwind }
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