diff --git a/llvm/test/Analysis/ScalarEvolution/range_nw_flag.ll b/llvm/test/Analysis/ScalarEvolution/range_nw_flag.ll index 65ecd312e0cbb..4a520056d7657 100644 --- a/llvm/test/Analysis/ScalarEvolution/range_nw_flag.ll +++ b/llvm/test/Analysis/ScalarEvolution/range_nw_flag.ll @@ -39,3 +39,22 @@ exit: ret void } +; CHECK-LABEL: @test-addrec-nsw +; CHECK: --> {(-1 + (-10 smin %offset)),+,-1}<%loop> U: [-2147483648,1) S: [-2147483648,1) +define void @test-addrec-nsw(float* %input, i32 %offset, i32 %numIterations) { +entry: + %cmp = icmp slt i32 %offset, -10 + %max = select i1 %cmp, i32 %offset, i32 -10 + br label %loop +loop: + %i = phi i32 [ %nexti, %loop ], [ 0, %entry ] + %nexti = add nsw i32 %i, -1 + %index32 = add nsw i32 %nexti, %max + %ptr = getelementptr inbounds float, float* %input, i32 %index32 + %f = load float, float* %ptr, align 4 + %exitcond = icmp eq i32 %nexti, %numIterations + br i1 %exitcond, label %exit, label %loop + +exit: + ret void +}