4d425f8663
Try to avoid some unprofitable predication on PPC. Recognize in the cost model that computing on i1 values will require extra mask or compare operation. Differential Revision: https://reviews.llvm.org/D155876
30 lines
1.1 KiB
LLVM
30 lines
1.1 KiB
LLVM
; RUN: opt -ppc-vec-mask-cost=true -aa-pipeline=basic-aa -mcpu=pwr8 -S -passes=loop-vectorize < %s | FileCheck %s
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target datalayout = "e-m:e-Fn32-i64:64-n32:64-S128-v256:256:256-v512:512:512"
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target triple = "powerpc64le-unknown-linux-gnu"
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define dso_local void @_tc(ptr nocapture noundef %aaa, i64 noundef %bbb) local_unnamed_addr {
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; CHECK-NOT: extractelement <16 x i1>
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entry:
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br label %for.body
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for.cond.cleanup.loopexit: ; preds = %for.inc
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ret void
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for.body: ; preds = %for.inc, %entry
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%i.08 = phi i64 [ %inc, %for.inc ], [ 0, %entry ]
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%arrayidx = getelementptr inbounds i8, ptr %aaa, i64 %i.08
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%0 = load i8, ptr %arrayidx, align 1
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%cmp1 = icmp eq i8 %0, 0
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br i1 %cmp1, label %if.then, label %for.inc
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if.then: ; preds = %for.body
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store i8 32, ptr %arrayidx, align 1
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br label %for.inc
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for.inc: ; preds = %if.then, %for.body
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%inc = add nuw nsw i64 %i.08, 1
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%exitcond.not = icmp eq i64 %inc, %bbb
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br i1 %exitcond.not, label %for.cond.cleanup.loopexit, label %for.body
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}
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