forked from OSchip/llvm-project
38 lines
1.3 KiB
LLVM
38 lines
1.3 KiB
LLVM
; RUN: opt %loadPolly -polly-print-ast -polly-ast-detect-parallel -disable-output < %s | FileCheck %s
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; RUN: opt %loadPolly -print-polyhedral-info -polly-check-parallel -disable-output < %s | FileCheck %s -check-prefix=PINFO
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;
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; void f(int *A, int N) {
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; CHECK: #pragma minimal dependence distance: -(N % 2) + 2
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; PINFO: for.cond: Loop is not parallel.
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; for (int i = 0; i < N; i++)
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; A[i] = A[N - i] + 1;
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; }
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;
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
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define void @f(i32* %A, i32 %N) {
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entry:
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br label %for.cond
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for.cond: ; preds = %for.inc, %entry
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%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
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%cmp = icmp slt i32 %i.0, %N
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br i1 %cmp, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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%sub = sub nsw i32 %N, %i.0
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%arrayidx = getelementptr inbounds i32, i32* %A, i32 %sub
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%tmp = load i32, i32* %arrayidx, align 4
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%add = add nsw i32 %tmp, 1
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%arrayidx1 = getelementptr inbounds i32, i32* %A, i32 %i.0
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store i32 %add, i32* %arrayidx1, align 4
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br label %for.inc
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for.inc: ; preds = %for.body
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%inc = add nsw i32 %i.0, 1
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br label %for.cond
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for.end: ; preds = %for.cond
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ret void
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}
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