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84 lines
2.3 KiB
84 lines
2.3 KiB
; RUN: llc -march=hexagon -O3 -hexagon-eif=0 < %s | FileCheck %s
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; Without TFR cleanup, the last block contained
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; {
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; r3 = xor(r1, r2)
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; r1 = #0
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; }
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; {
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; r7 = r1
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; r0 = zxtb(r3)
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; }
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; After TFR cleanup, the copy "r7 = r1" should be simplified to "r7 = #0".
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; There shouldn't be any register copies in that block anymore.
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;
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; CHECK: LBB0_5:
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; CHECK-NOT: r{{[0-9]+}} = r{{[0-9]+}}
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target triple = "hexagon"
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; Function Attrs: nounwind readnone
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define i64 @f0(i64 %a0, i32 %a1, i32 %a2) #0 {
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b0:
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%v0 = trunc i64 %a0 to i32
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%v1 = lshr i64 %a0, 32
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%v2 = trunc i64 %v1 to i32
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%v3 = lshr i64 %a0, 40
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%v4 = lshr i64 %a0, 48
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%v5 = trunc i64 %v4 to i16
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%v6 = icmp sgt i32 %a2, %a1
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%v7 = lshr i32 %v0, 10
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br i1 %v6, label %b1, label %b2
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b1: ; preds = %b0
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%v8 = add nsw i32 %v7, 4190971
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%v9 = and i32 %v8, 4194303
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%v10 = shl nuw nsw i64 %v3, 24
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%v11 = trunc i64 %v10 to i32
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%v12 = ashr exact i32 %v11, 24
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%v13 = or i32 %v12, 102
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br label %b3
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b2: ; preds = %b0
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%v14 = add nsw i32 %v7, 4189760
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%v15 = trunc i64 %v3 to i32
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%v16 = or i32 %v15, 119
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br label %b3
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b3: ; preds = %b2, %b1
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%v17 = phi i32 [ %v13, %b1 ], [ %v16, %b2 ]
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%v18 = phi i32 [ %v9, %b1 ], [ %v14, %b2 ]
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%v19 = shl i32 %v18, 10
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%v20 = icmp sgt i32 %a1, %a2
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br i1 %v20, label %b4, label %b5
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b4: ; preds = %b3
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%v21 = and i32 %v2, 140
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%v22 = or i32 %v21, 115
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%v23 = and i16 %v5, 12345
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br label %b6
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b5: ; preds = %b3
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%v24 = xor i32 %v2, 23
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%v25 = or i16 %v5, 12345
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br label %b6
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b6: ; preds = %b5, %b4
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%v26 = phi i16 [ %v23, %b4 ], [ %v25, %b5 ]
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%v27 = phi i32 [ %v22, %b4 ], [ %v24, %b5 ]
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%v28 = zext i16 %v26 to i64
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%v29 = shl nuw i64 %v28, 48
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%v30 = and i32 %v27, 255
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%v31 = zext i32 %v30 to i64
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%v32 = shl nuw nsw i64 %v31, 40
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%v33 = and i32 %v17, 255
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%v34 = zext i32 %v33 to i64
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%v35 = shl nuw nsw i64 %v34, 32
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%v36 = zext i32 %v19 to i64
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%v37 = or i64 %v36, %v35
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%v38 = or i64 %v37, %v29
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%v39 = or i64 %v38, %v32
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ret i64 %v39
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}
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attributes #0 = { nounwind readnone "target-cpu"="hexagonv55" }
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