forked from OSchip/llvm-project
47 lines
890 B
LLVM
47 lines
890 B
LLVM
; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
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;
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; Unsigned wrap-around check.
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;
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; for (int i = -1; i < 65 ; i ++ )
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; if ( (unsigned)i < 64 )
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; A[i] = 42;
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define void @func(double* noalias nonnull %A) {
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entry:
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br label %for
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for:
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%j = phi i32 [-1, %entry], [%j.inc, %inc]
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%j.cmp = icmp slt i32 %j, 65
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br i1 %j.cmp, label %body, label %exit
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body:
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%inbounds = icmp ult i32 %j, 64
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br i1 %inbounds, label %ifinbounds, label %ifoutbounds
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ifinbounds:
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%A_idx = getelementptr inbounds double, double* %A, i32 %j
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store double 42.0, double* %A_idx
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br label %inc
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ifoutbounds:
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br label %inc
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inc:
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%j.inc = add nuw nsw i32 %j, 1
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br label %for
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exit:
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br label %return
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return:
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ret void
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}
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; CHECK: Region: %for---%return
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; CHECK: Domain :=
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; CHECK-NEXT: { Stmt_ifinbounds[i0] : 0 < i0 <= 64 };
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