555e09c2b0
This updates the naming for the LAA printing pass to be in line with most other analysis printing passes. The old name has come up as confusing multiple times already, e.g. in D131924.
42 lines
1.2 KiB
LLVM
42 lines
1.2 KiB
LLVM
; RUN: opt -passes='print<access-info>' -aa-pipeline='basic-aa' -disable-output < %s 2>&1 | FileCheck %s
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; For this loop:
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; for (int i = 0; i < n; i++)
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; A[2 * i] = A[2 * i] + B[i];
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;
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; , SCEV is unable to prove that A[2 * i] does not overflow. However,
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; analyzing the IR helps us to conclude it and in turn allow dependence
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; analysis.
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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; CHECK: Memory dependences are safe{{$}}
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define void @f(i16* noalias %a,
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i16* noalias %b, i64 %N) {
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entry:
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%ind = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%mul = mul nuw nsw i64 %ind, 2
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%arrayidxA = getelementptr inbounds i16, i16* %a, i64 %mul
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%loadA = load i16, i16* %arrayidxA, align 2
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%arrayidxB = getelementptr inbounds i16, i16* %b, i64 %ind
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%loadB = load i16, i16* %arrayidxB, align 2
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%add = mul i16 %loadA, %loadB
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store i16 %add, i16* %arrayidxA, align 2
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%inc = add nuw nsw i64 %ind, 1
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%exitcond = icmp eq i64 %inc, %N
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body
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ret void
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}
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