forked from OSchip/llvm-project
30 lines
1.0 KiB
LLVM
30 lines
1.0 KiB
LLVM
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; RUN: opt -loop-vectorize -force-vector-interleave=1 -force-vector-width=2 -S < %s | FileCheck %s
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;
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; Check that the disable_nonforced loop property is honored by the
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; loop vectorizer.
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;
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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; CHECK-LABEL: @disable_nonforced(
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; CHECK-NOT: x i32>
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define void @disable_nonforced(i32* nocapture %a, i32 %n) {
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entry:
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%cmp4 = icmp sgt i32 %n, 0
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br i1 %cmp4, label %for.body, label %for.end
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for.body:
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
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%arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
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%0 = trunc i64 %indvars.iv to i32
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store i32 %0, i32* %arrayidx, align 4
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%indvars.iv.next = add i64 %indvars.iv, 1
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32
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%exitcond = icmp eq i32 %lftr.wideiv, %n
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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 = !{!0, !{!"llvm.loop.disable_nonforced"}}
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