[llvm-commits] PATCH: Preserving the 'nsw' flag in the instruction combiner.

[Pranav Bhandarkar]

Hi Eli and Nick,

>>A couple notes on the patch:
>>
>>1. When submitting a patch, please include the test in the patch itself.
>>2. Using APInt::sadd_ov and APInt::ssub_ov might simplify the logic here a
bit.

Thanks for your suggestions. I have incorporated your suggestions in the
attached revision of my patch. Please do let me know if this is ok to
commit.

Thanks,
Pranav 
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