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annotate polly/test/CodeGen/entry_with_trivial_phi.ll @ 252:1f2b6ac9f198 llvm-original

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LLVM16-1
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Fri, 18 Aug 2023 09:04:13 +0900
parents c4bab56944e8
children
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1 ; RUN: opt %loadPolly -polly-codegen -S < %s
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2 ;
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3 ; The entry of this scop's simple region (entry.split => for.end) has an trivial
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4 ; PHI node. LCSSA may create such PHI nodes. This is a breakdown of this case in
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5 ; the function 'Laguerre_With_Deflation' of oggenc from LLVM's test-suite.
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6 ;
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7 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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8
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1f2b6ac9f198 LLVM16-1
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9 define void @test(i64 %n, ptr noalias nonnull %A, float %a) {
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10 entry:
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11 br label %entry.split
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12
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13 ; CHECK-LABEL: %polly.split_new_and_old
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14 ; CHECK-NEXT: store float %a, ptr %b.phiops
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16 ; CHECK-LABEL: polly.stmt.entry.split
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17 ; CHECK-NEXT: %b.phiops.reload = load float, ptr %b.phiops
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18
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19 entry.split:
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20 %b = phi float [ %a, %entry ]
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21 store float %b, ptr %A, align 4
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22 %cmp2 = icmp slt i64 %n, 5
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23 br i1 %cmp2, label %for.cond, label %for.end
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24
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25 for.cond: ; preds = %for.inc, %entry
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26 %i.0 = phi i64 [ 0, %entry.split ], [ %add, %for.inc ]
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27 %cmp = icmp slt i64 %i.0, %n
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28 br i1 %cmp, label %for.body, label %for.end
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29
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30 for.body: ; preds = %for.cond
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31 %arrayidx = getelementptr inbounds float, ptr %A, i64 %i.0
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32 store float %a, ptr %arrayidx, align 4
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33 br label %for.inc
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34
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35 for.inc: ; preds = %for.body
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36 %add = add nuw nsw i64 %i.0, 1
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37 br label %for.cond
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38
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39 for.end: ; preds = %for.cond
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40 ret void
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41 }