forked from OSchip/llvm-project
59 lines
2.3 KiB
LLVM
59 lines
2.3 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
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;
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; CHECK: Statements {
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; CHECK-NEXT: Stmt_for_body
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; CHECK-NEXT: Domain :=
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; CHECK-NEXT: [N] -> { Stmt_for_body[i0] : 0 <= i0 < N };
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; CHECK-NEXT: Schedule :=
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; CHECK-NEXT: [N] -> { Stmt_for_body[i0] -> [i0] };
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; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: [N] -> { Stmt_for_body[i0] -> MemRef_A[o0] : -4 + N + 5i0 <= 5o0 <= N + 5i0 };
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; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: [N] -> { Stmt_for_body[i0] -> MemRef_A[o0] : -N + 5i0 <= 5o0 <= 4 - N + 5i0 };
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: [N] -> { Stmt_for_body[i0] -> MemRef_A[i0] };
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; CHECK-NEXT: }
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;
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; void f(int *A, int N) {
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; for (int i = 0; i < N; i++)
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; A[i] = A[i + (N / 5)] + A[i + (N / -5)];
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; }
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;
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define void @f(i32* %A, i32 %N) {
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entry:
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%tmp = sext i32 %N to i64
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br label %for.cond
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for.cond: ; preds = %for.inc, %entry
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
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%cmp = icmp slt i64 %indvars.iv, %tmp
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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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%div = sdiv i32 %N, 5
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%tmp1 = trunc i64 %indvars.iv to i32
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%add = add nsw i32 %tmp1, %div
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%idxprom = sext i32 %add to i64
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %idxprom
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%tmp2 = load i32, i32* %arrayidx, align 4
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%div1 = sdiv i32 %N, -5
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%tmp3 = trunc i64 %indvars.iv to i32
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%add2 = add nsw i32 %tmp3, %div1
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%idxprom3 = sext i32 %add2 to i64
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%arrayidx4 = getelementptr inbounds i32, i32* %A, i64 %idxprom3
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%tmp4 = load i32, i32* %arrayidx4, align 4
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%add5 = add nsw i32 %tmp2, %tmp4
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%arrayidx7 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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store i32 %add5, i32* %arrayidx7, align 4
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br label %for.inc
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for.inc: ; preds = %for.body
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 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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