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annotate llvm/test/Transforms/LoopDistribute/crash-in-memcheck-generation.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 -passes=loop-distribute,loop-vectorize -enable-loop-distribute -force-vector-width=4 \
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2 ; RUN: -verify-loop-info -verify-dom-info -S < %s | FileCheck %s
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3
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4 ; If only A and B can alias here, we don't need memchecks to distribute since
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5 ; A and B are in the same partition. This used to cause a crash in the
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6 ; memcheck generation.
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7 ;
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8 ; for (i = 0; i < n; i++) {
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9 ; A[i + 1] = A[i] * B[i];
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10 ; ------------------------------
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11 ; C[i] = D[i] * E[i];
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12 ; }
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13
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14 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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15 target triple = "x86_64-apple-macosx10.10.0"
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16
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17 define void @f(ptr %a,
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18 ptr %b,
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19 ptr noalias %c,
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20 ptr noalias %d,
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21 ptr noalias %e) {
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22 entry:
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23 br label %for.body
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24
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25 ; CHECK-NOT: memcheck:
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26 ; CHECK: mul <4 x i32>
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27
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28 for.body: ; preds = %for.body, %entry
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29 %ind = phi i64 [ 0, %entry ], [ %add, %for.body ]
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30
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31 %arrayidxA = getelementptr inbounds i32, ptr %a, i64 %ind
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32 %loadA = load i32, ptr %arrayidxA, align 4
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33
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34 %arrayidxB = getelementptr inbounds i32, ptr %b, i64 %ind
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35 %loadB = load i32, ptr %arrayidxB, align 4
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36
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37 %mulA = mul i32 %loadB, %loadA
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38
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39 %add = add nuw nsw i64 %ind, 1
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40 %arrayidxA_plus_4 = getelementptr inbounds i32, ptr %a, i64 %add
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41 store i32 %mulA, ptr %arrayidxA_plus_4, align 4
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42
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43 %arrayidxD = getelementptr inbounds i32, ptr %d, i64 %ind
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44 %loadD = load i32, ptr %arrayidxD, align 4
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45
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46 %arrayidxE = getelementptr inbounds i32, ptr %e, i64 %ind
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47 %loadE = load i32, ptr %arrayidxE, align 4
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48
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49 %mulC = mul i32 %loadD, %loadE
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50
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51 %arrayidxC = getelementptr inbounds i32, ptr %c, i64 %ind
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52 store i32 %mulC, ptr %arrayidxC, align 4
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53
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54 %exitcond = icmp eq i64 %add, 20
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55 br i1 %exitcond, label %for.end, label %for.body
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56
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57 for.end: ; preds = %for.body
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58 ret void
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59 }