forked from OSchip/llvm-project
51 lines
1.5 KiB
LLVM
51 lines
1.5 KiB
LLVM
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; RUN: opt -loop-distribute -enable-loop-distribute=1 -S < %s | FileCheck %s
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;
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; Check that the disable_nonforced is honored by loop distribution.
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;
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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; CHECK-LABEL: @disable_nonforced(
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; CHECK-NOT: for.body.ldist1:
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define void @disable_nonforced(i32* noalias %a,
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i32* noalias %b,
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i32* noalias %c,
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i32* noalias %d,
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i32* noalias %e) {
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entry:
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br label %for.body
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for.body:
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%ind = phi i64 [ 0, %entry ], [ %add, %for.body ]
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%arrayidxA = getelementptr inbounds i32, i32* %a, i64 %ind
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%loadA = load i32, i32* %arrayidxA, align 4
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%arrayidxB = getelementptr inbounds i32, i32* %b, i64 %ind
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%loadB = load i32, i32* %arrayidxB, align 4
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%mulA = mul i32 %loadB, %loadA
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%add = add nuw nsw i64 %ind, 1
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%arrayidxA_plus_4 = getelementptr inbounds i32, i32* %a, i64 %add
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store i32 %mulA, i32* %arrayidxA_plus_4, align 4
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%arrayidxD = getelementptr inbounds i32, i32* %d, i64 %ind
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%loadD = load i32, i32* %arrayidxD, align 4
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%arrayidxE = getelementptr inbounds i32, i32* %e, i64 %ind
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%loadE = load i32, i32* %arrayidxE, align 4
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%mulC = mul i32 %loadD, %loadE
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%arrayidxC = getelementptr inbounds i32, i32* %c, i64 %ind
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store i32 %mulC, i32* %arrayidxC, align 4
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%exitcond = icmp eq i64 %add, 20
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br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !0
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for.end:
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ret void
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}
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!0 = distinct !{!0, !{!"llvm.loop.disable_nonforced"}}
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