forked from OSchip/llvm-project
50 lines
1.7 KiB
LLVM
50 lines
1.7 KiB
LLVM
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; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
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;
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; Verfy that we do not use the GetElementPtr information to delinearize A
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; because of the cast in-between. Use the single-dimensional modeling instead.
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;
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; void f(short A[][2]) {
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; for (int i = 0; i < 100; i++)
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; *((long *)&A[4 * i][0]) = 0;
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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([2 x i16]* %A) {
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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, 100
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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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%tmp = shl nsw i64 %indvars.iv, 2
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%arrayidx1 = getelementptr inbounds [2 x i16], [2 x i16]* %A, i64 %tmp, i64 0
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%tmp2 = bitcast i16* %arrayidx1 to i64*
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store i64 0, i64* %tmp2, align 8
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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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; CHECK: Arrays {
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; CHECK-NEXT: i64 MemRef_A[*]; // Element size 8
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; CHECK-NEXT: }
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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: { Stmt_for_body[i0] : 0 <= i0 <= 99 };
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; CHECK-NEXT: Schedule :=
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; CHECK-NEXT: { Stmt_for_body[i0] -> [i0] };
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: { Stmt_for_body[i0] -> MemRef_A[2i0] };
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; CHECK-NEXT: }
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