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39 lines
1.3 KiB
LLVM
39 lines
1.3 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
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;
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; TODO: FIXME: Investigate why we need a InvalidContext here.
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;
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; void f(int *A, int *B) {
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; while (A != B) {
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; *A = *A + 1;
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; A++;
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; }
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; }
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;
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; CHECK: Invalid Context:
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; CHECK-NEXT: [A, B] -> { : (4*floor((A - B)/4) < A - B) or (4*floor((-A + B)/4) = -A + B and B >= 9223372036854775808 + A) or (4*floor((-A + B)/4) = -A + B and B <= -4 + A) }
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;
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; CHECK: Domain :=
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; CHECK-NEXT: [A, B] -> { Stmt_while_body[i0] : 4*floor((-A + B)/4) = -A + B and i0 >= 0 and 4i0 <= -4 - A + B }
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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* %B) {
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entry:
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br label %while.cond
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while.cond: ; preds = %while.body, %entry
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%A.addr.0 = phi i32* [ %A, %entry ], [ %incdec.ptr, %while.body ]
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%cmp = icmp eq i32* %A.addr.0, %B
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br i1 %cmp, label %while.end, label %while.body
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while.body: ; preds = %while.cond
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%tmp = load i32, i32* %A.addr.0, align 4
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%add = add nsw i32 %tmp, 1
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store i32 %add, i32* %A.addr.0, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %A.addr.0, i64 1
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br label %while.cond
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while.end: ; preds = %while.cond
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ret void
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}
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