derek.holloway
7502bf64a4
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38 lines
1.6 KiB
LLVM
38 lines
1.6 KiB
LLVM
; RUN: opt %loadNPMPolly -polly-allow-modref-calls '-passes=polly-custom<scops>' -polly-print-scops -disable-output < %s 2>&1 | FileCheck %s
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; RUN: opt %loadNPMPolly -polly-allow-modref-calls -S '-passes=polly<no-default-opts>' < %s
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;
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; Verify we can handle a memset to "null" and that we do not model it.
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; TODO: FIXME: We could use the undefined memset to optimize the code further,
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; see the TODOs in the ScopInfo.cpp.
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;
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; CHECK: Statements {
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; CHECK-NEXT: Stmt_for_cond5_preheader_us221
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; CHECK-NEXT: Domain :=
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; CHECK-NEXT: { Stmt_for_cond5_preheader_us221[0] };
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; CHECK-NEXT: Schedule :=
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; CHECK-NEXT: { Stmt_for_cond5_preheader_us221[i0] -> [0] };
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: { Stmt_for_cond5_preheader_us221[i0] -> MemRef_A[0] };
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; CHECK-NEXT: }
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;
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target datalayout = "e-m:e-i64:64-i128:128-n8:16:32:64-S128"
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define void @test(ptr %A) {
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entry:
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br i1 undef, label %for.end68, label %for.cond5.preheader.lr.ph
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for.cond5.preheader.lr.ph: ; preds = %entry
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br label %for.cond5.preheader.us221
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for.cond5.preheader.us221: ; preds = %for.cond5.preheader.us221, %for.cond5.preheader.lr.ph
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store i32 0, ptr %A
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call void @llvm.memset.p0.i64(ptr null, i8 0, i64 undef, i32 1, i1 false)
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br i1 true, label %for.end68, label %for.cond5.preheader.us221
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for.end68: ; preds = %for.cond5.preheader.us221, %entry
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ret void
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}
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declare void @llvm.memset.p0.i64(ptr nocapture, i8, i64, i32, i1)
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