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annotate polly/test/ScopInfo/memset_null.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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c4bab56944e8 LLVM 16
kono
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1 ; RUN: opt %loadPolly -polly-allow-modref-calls -polly-print-scops -disable-output < %s | FileCheck %s
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2 ; RUN: opt %loadPolly -polly-allow-modref-calls -S -polly-codegen < %s
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3 ;
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4 ; Verify we can handle a memset to "null" and that we do not model it.
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5 ; TODO: FIXME: We could use the undefined memset to optimize the code further,
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6 ; see the TODOs in the ScopInfo.cpp.
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7 ;
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8 ; CHECK: Statements {
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9 ; CHECK-NEXT: Stmt_for_cond5_preheader_us221
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10 ; CHECK-NEXT: Domain :=
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11 ; CHECK-NEXT: { Stmt_for_cond5_preheader_us221[0] };
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12 ; CHECK-NEXT: Schedule :=
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13 ; CHECK-NEXT: { Stmt_for_cond5_preheader_us221[i0] -> [0] };
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14 ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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15 ; CHECK-NEXT: { Stmt_for_cond5_preheader_us221[i0] -> MemRef_A[0] };
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16 ; CHECK-NEXT: }
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17
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18 ;
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19 target datalayout = "e-m:e-i64:64-i128:128-n8:16:32:64-S128"
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20
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1f2b6ac9f198 LLVM16-1
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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21 define void @test(ptr %A) {
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22 entry:
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23 br i1 undef, label %for.end68, label %for.cond5.preheader.lr.ph
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24
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25 for.cond5.preheader.lr.ph: ; preds = %entry
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26 br label %for.cond5.preheader.us221
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27
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28 for.cond5.preheader.us221: ; preds = %for.cond5.preheader.us221, %for.cond5.preheader.lr.ph
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1f2b6ac9f198 LLVM16-1
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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29 store i32 0, ptr %A
1f2b6ac9f198 LLVM16-1
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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30 call void @llvm.memset.p0.i64(ptr null, i8 0, i64 undef, i32 1, i1 false)
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31 br i1 true, label %for.end68, label %for.cond5.preheader.us221
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32
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33 for.end68: ; preds = %for.cond5.preheader.us221, %entry
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34 ret void
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35 }
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1f2b6ac9f198 LLVM16-1
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 236
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37 declare void @llvm.memset.p0.i64(ptr nocapture, i8, i64, i32, i1)