forked from OSchip/llvm-project
24 lines
543 B
LLVM
24 lines
543 B
LLVM
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; RUN: opt -S < %s -loop-idiom | FileCheck %s
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declare void @llvm.sideeffect()
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; Loop idiom recognition across a @llvm.sideeffect.
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; CHECK-LABEL: zero
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; CHECK: llvm.memset
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define void @zero(float* %p, i64 %n) nounwind {
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bb7.lr.ph:
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br label %bb7
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bb7:
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%i.02 = phi i64 [ 0, %bb7.lr.ph ], [ %tmp13, %bb7 ]
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%tmp10 = getelementptr inbounds float, float* %p, i64 %i.02
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store float 0.000000e+00, float* %tmp10, align 4
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%tmp13 = add i64 %i.02, 1
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%tmp6 = icmp ult i64 %tmp13, %n
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br i1 %tmp6, label %bb7, label %bb14
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bb14:
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ret void
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}
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