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45 lines
1.3 KiB
LLVM
45 lines
1.3 KiB
LLVM
; RUN: llc -march=hexagon -disable-block-placement < %s | FileCheck %s
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; Check that the branch to the block b10 is marked as taken (i.e. ":t").
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; CHECK-LABEL: foo
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; CHECK: if ({{.*}}) jump:t .LBB0_[[LAB:[0-9]+]]
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; CHECK: [[LAB]]:
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; CHECK: add({{.*}},#65)
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target triple = "hexagon"
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define i32 @foo(i32 %a0) local_unnamed_addr #0 {
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b1:
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%v2 = icmp eq i32 %a0, 0
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br i1 %v2, label %b3, label %b10, !prof !0
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b3: ; preds = %b1
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br label %b4
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b4: ; preds = %b4, %b3
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%v5 = phi i32 [ %v6, %b4 ], [ 0, %b3 ]
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%v6 = add nuw nsw i32 %v5, 1
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%v7 = mul nuw nsw i32 %v5, 67
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%v8 = tail call i32 @bar(i32 %v7) #0
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%v9 = icmp eq i32 %v6, 10
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br i1 %v9, label %b13, label %b4
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b10: ; preds = %b1
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%v11 = add nsw i32 %a0, 65
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%v12 = tail call i32 @bar(i32 %v11) #0
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br label %b14
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b13: ; preds = %b4
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br label %b14
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b14: ; preds = %b13, %b10
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%v15 = phi i32 [ %v12, %b10 ], [ 0, %b13 ]
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ret i32 %v15
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}
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declare i32 @bar(i32) local_unnamed_addr #0
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attributes #0 = { nounwind "target-cpu"="hexagonv60" "target-features"="+hvx,+hvx-length64b,-long-calls" }
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!0 = !{!"branch_weights", i32 1, i32 2000}
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