forked from OSchip/llvm-project
57 lines
1.9 KiB
LLVM
57 lines
1.9 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
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;
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; Check that there is no alias group because we either access A or B never both.
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;
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; CHECK: Alias Groups (0):
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;
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; void jd(int b, int *A, int *B) {
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; for (int i = 0; i < 1024; i++) {
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; if (b)
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; A[i] = A[i - 1];
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; else
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; B[i] = B[i - 1];
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; }
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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 @jd(i32 %b, i32* %A, i32* %B) {
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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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%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
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%exitcond = icmp ne i64 %indvars.iv, 1024
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br i1 %exitcond, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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%tobool = icmp eq i32 %b, 0
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br i1 %tobool, label %if.else, label %if.then
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if.then: ; preds = %for.body
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%tmp = add nsw i64 %indvars.iv, -1
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %tmp
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%tmp3 = load i32, i32* %arrayidx, align 4
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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store i32 %tmp3, i32* %arrayidx2, align 4
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br label %if.end
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if.else: ; preds = %for.body
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%tmp4 = add nsw i64 %indvars.iv, -1
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%arrayidx5 = getelementptr inbounds i32, i32* %B, i64 %tmp4
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%tmp5 = load i32, i32* %arrayidx5, align 4
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%arrayidx7 = getelementptr inbounds i32, i32* %B, i64 %indvars.iv
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store i32 %tmp5, i32* %arrayidx7, align 4
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br label %if.end
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if.end: ; preds = %if.else, %if.then
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br label %for.inc
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for.inc: ; preds = %if.end
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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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