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47 lines
1.2 KiB
47 lines
1.2 KiB
4 months ago
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; RUN: opt %loadPolly -polly-detect -analyze < %s | FileCheck %s
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;
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; Check that we will recognize this SCoP.
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;
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; void f(int *A, long N) {
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; int j = 0;
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; while (N > j) {
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; int x = A[0];
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; int i = 1;
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; do {
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; A[x] = 42;
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; A += x;
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; } while (i++ < N);
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; }
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; }
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;
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; CHECK: Valid Region for Scop: bb1 => bb0
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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, i64 %N) {
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bb:
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br label %bb0
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bb0:
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%j = phi i64 [ %j.next, %bb1 ], [ 1, %bb ]
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%tmp = load i32, i32* %A, align 4
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%exitcond0 = icmp sgt i64 %N, %j
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%j.next = add nuw nsw i64 %j, 1
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br i1 %exitcond0, label %bb1, label %bb13
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bb1: ; preds = %bb7, %bb0
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%i = phi i64 [ %i.next, %bb1 ], [ 1, %bb0 ]
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%.0 = phi i32* [ %A, %bb0 ], [ %tmp12, %bb1 ]
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%tmp8 = sext i32 %tmp to i64
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%tmp9 = getelementptr inbounds i32, i32* %.0, i64 %tmp8
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store i32 42, i32* %tmp9, align 4
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%tmp11 = sext i32 %tmp to i64
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%tmp12 = getelementptr inbounds i32, i32* %.0, i64 %tmp11
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%i.next = add nuw nsw i64 %i, 1
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%exitcond = icmp ne i64 %i, %N
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br i1 %exitcond, label %bb1, label %bb0
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bb13: ; preds = %bb1
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ret void
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}
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