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annotate polly/test/ScopInfo/constant_factor_in_parameter.ll @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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children c4bab56944e8
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150
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1 ; RUN: opt %loadPolly -analyze -polly-scops < %s | FileCheck %s
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2 ; RUN: opt %loadPolly -analyze -polly-function-scops < %s | FileCheck %s
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3 ;
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4 ; Check that the constant part of the N * M * 4 expression is not part of the
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5 ; parameter but explicit in the access function. This can avoid existentially
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6 ; quantified variables, e.g., when computing the stride.
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7 ;
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8 ; CHECK: p1: (%N * %M)
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9 ; CHECK: [N, p_1] -> { Stmt_for_body[i0] -> MemRef_A[4p_1 + i0] };
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10 ;
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11 ; void f(int *A, int N, int M) {
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12 ; for (int i = 0; i < N; i++)
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13 ; A[i + N * M * 4] = i;
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14 ; }
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15 ;
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16 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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17
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18 define void @f(i32* %A, i32 %N, i32 %M) {
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19 entry:
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20 %tmp = sext i32 %N to i64
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21 br label %for.cond
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22
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23 for.cond: ; preds = %for.inc, %entry
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24 %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
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25 %cmp = icmp slt i64 %indvars.iv, %tmp
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26 br i1 %cmp, label %for.body, label %for.end
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27
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28 for.body: ; preds = %for.cond
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29 %mul = mul nsw i32 %N, %M
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30 %mul2 = mul nsw i32 %mul, 4
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31 %tmp2 = sext i32 %mul2 to i64
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32 %tmp3 = add nsw i64 %indvars.iv, %tmp2
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33 %arrayidx = getelementptr inbounds i32, i32* %A, i64 %tmp3
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34 %tmp4 = trunc i64 %indvars.iv to i32
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35 store i32 %tmp4, i32* %arrayidx, align 4
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36 br label %for.inc
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37
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38 for.inc: ; preds = %for.body
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39 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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40 br label %for.cond
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41
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42 for.end: ; preds = %for.cond
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43 ret void
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44 }