[llvm-dev] Unsigned int displaying as negative

[Friedman, Eli via llvm-dev]

On 2/15/2017 10:30 AM, Ryan Taylor via llvm-dev wrote:
> Where do in-tree archs handle the difference in this example? The 
> difference being printed either the signed or unsigned value.
>
> Thanks.
>
> On Wed, Feb 15, 2017 at 1:28 PM, Ryan Taylor <ryta1203 at gmail.com 
> <mailto:ryta1203 at gmail.com>> wrote:
>
>     Right, I understand that.
>
>     So why is 0x7FFF matching fine but not 0x8000 both fit in 16 bit?
>
>     Thanks.
>

It's hard to say why your pattern isn't matching without actually seeing 
the pattern.

See imm0_4095 in ARMInstrThumb2.td for an example of the sort of pattern 
you want.

-Eli

-- 
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project

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