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Ship it!


LGTM. Just to double check, if the offset is -3, then offset.hi is 0 and 
offset.low is -3 in two's complement? I.e., if the instruction is 32-bits, the 
offset is NOT sign extended in BRIG?

- Jason Lowe-Power


On Oct. 31, 2016, 11:13 p.m., Tony Gutierrez wrote:
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> 
> (Updated Oct. 31, 2016, 11:13 p.m.)
> 
> 
> Review request for Default.
> 
> 
> Repository: gem5
> 
> 
> Description
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> 
> Changeset 11880:38d5aefff9bd
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> hsail: fix unsigned offset bug in address calculation
> 
> it's possible for the offset provided to an HSAIL mem inst to be a negative
> value, however the variable we use to hold the offset is an unsigned type.
> this can lead to excessively large offset values when the offset is negative,
> which will almost certainly cause the access to go out of bounds.
> 
> 
> Diffs
> -----
> 
>   src/arch/hsail/operand.hh c38fcdaa5fe508dbb18cc084e758ad0ce8e2e2f4 
> 
> Diff: http://reviews.gem5.org/r/3691/diff/
> 
> 
> Testing
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> 
> 
> Thanks,
> 
> Tony Gutierrez
> 
>

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