Displaying 4 results from an estimated 4 matches for "newlow".
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2011 Jun 22
2
[LLVMdev] ConstantRange::sub
Sure. I will submit a patch.
BTW, what's the difference between the bounds I was expecting
APInt NewLower = getLower() - Other.getUpper() + 1;
APInt NewUpper = getUpper() - Other.getLower();
and the two you mentioned
NewLower = Lower - (Upper-1)
NewUpper = (Upper-1) - Lower + 1
They look equivalent to me. Did I miss anything? Thanks.
- xi
On Jun 22, 2011, at 2:39 PM, Nick Lewycky wrote:
>...
2011 Jun 22
0
[LLVMdev] ConstantRange::sub
On 22 June 2011 12:51, Xi Wang <xi.wang at gmail.com> wrote:
> Sure. I will submit a patch.
>
> BTW, what's the difference between the bounds I was expecting
>
> APInt NewLower = getLower() - Other.getUpper() + 1;
> APInt NewUpper = getUpper() - Other.getLower();
>
> and the two you mentioned
>
> NewLower = Lower - (Upper-1)
> NewUpper = (Upper-1) - Lower + 1
>
> They look equivalent to me. Did I miss anything? Thanks.
>
... they are. Sorry...
2011 Jun 21
2
[LLVMdev] ConstantRange::sub
Hi,
I have a question about ConstantRange::sub(const ConstantRange &Other) at lib/Support/ConstantRange.cpp:524. The code computes the new bounds as follows.
APInt NewLower = getLower() - Other.getLower();
APInt NewUpper = getUpper() - Other.getUpper() + 1;
Could someone explain this to me? I was expecting something like
APInt NewLower = getLower() - Other.getUpper() + 1;
APInt NewUpper = getUpper() - Other.getLower();
Thanks.
- xi
2011 Jun 22
0
[LLVMdev] ConstantRange::sub
...fix it and add the test.
On 20 June 2011 23:09, Xi Wang <xi.wang at gmail.com> wrote:
> Hi,
>
> I have a question about ConstantRange::sub(const ConstantRange &Other) at
> lib/Support/ConstantRange.cpp:524. The code computes the new bounds as
> follows.
>
> APInt NewLower = getLower() - Other.getLower();
> APInt NewUpper = getUpper() - Other.getUpper() + 1;
>
> Could someone explain this to me? I was expecting something like
>
> APInt NewLower = getLower() - Other.getUpper() + 1;
> APInt NewUpper = getUpper() - Other.getLower();
>
These a...