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43 lines
1.5 KiB
43 lines
1.5 KiB
4 months ago
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; RUN: llc -march=hexagon -mcpu=hexagonv5 -enable-pipeliner \
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; RUN: -pipeliner-max-stages=2 < %s -pipeliner-experimental-cg=true | FileCheck %s
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@A = global [8 x i32] [i32 4, i32 -3, i32 5, i32 -2, i32 -1, i32 2, i32 6, i32 -2], align 8
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define i32 @test(i32 %Left, i32 %Right) {
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entry:
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%add = add nsw i32 %Right, %Left
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%div = sdiv i32 %add, 2
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%cmp9 = icmp slt i32 %div, %Left
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br i1 %cmp9, label %for.end, label %for.body.preheader
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for.body.preheader:
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br label %for.body
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; CHECK: loop0(.LBB0_[[LOOP:.]],
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; CHECK: .LBB0_[[LOOP]]:
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; CHECK: [[REG1:(r[0-9]+)]] = max(r{{[0-9]+}},[[REG1]])
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; CHECK: [[REG0:(r[0-9]+)]] = add([[REG2:(r[0-9]+)]],[[REG0]])
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; CHECK: [[REG2]] = memw
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; CHECK: endloop0
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for.body:
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%MaxLeftBorderSum.012 = phi i32 [ %MaxLeftBorderSum.1, %for.body ], [ 0, %for.body.preheader ]
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%i.011 = phi i32 [ %dec, %for.body ], [ %div, %for.body.preheader ]
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%LeftBorderSum.010 = phi i32 [ %add1, %for.body ], [ 0, %for.body.preheader ]
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%arrayidx = getelementptr inbounds [8 x i32], [8 x i32]* @A, i32 0, i32 %i.011
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%0 = load i32, i32* %arrayidx, align 4
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%add1 = add nsw i32 %0, %LeftBorderSum.010
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%cmp2 = icmp sgt i32 %add1, %MaxLeftBorderSum.012
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%MaxLeftBorderSum.1 = select i1 %cmp2, i32 %add1, i32 %MaxLeftBorderSum.012
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%dec = add nsw i32 %i.011, -1
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%cmp = icmp slt i32 %dec, %Left
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br i1 %cmp, label %for.end.loopexit, label %for.body
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for.end.loopexit:
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br label %for.end
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for.end:
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%MaxLeftBorderSum.0.lcssa = phi i32 [ 0, %entry ], [ %MaxLeftBorderSum.1, %for.end.loopexit ]
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ret i32 %MaxLeftBorderSum.0.lcssa
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}
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