Re: [PATCH v2] ieee754/dbl-64: Reduce the scope of temporary storage variables

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On 6/4/20 12:08 PM, Vineet Gupta via Libc-alpha wrote:
> On 6/2/20 1:31 PM, Vineet Gupta via Libc-alpha wrote:
>> On 6/2/20 11:16 AM, Joseph Myers wrote:
>>> On Mon, 1 Jun 2020, Vineet Gupta via Libc-alpha wrote:
>>>
>>>> Also as suggested by Joseph [1] used --strip and compared the libs with
>>>> and w/o patch and their sizes are exactly same (with gcc 9).
>>>
>>> My suggestion was to compare the *contents* of the libraries, not just 
>>> their sizes.  Either they should be byte-for-byte identical, or if there 
>>> are other differences (register allocation, line numbers in assertions, 
>>> etc.) a more detailed investigation will be needed.
>>>
>>
>> Here's my diff of the 2 --strip builds
>>
>> for i in `find . -name libm-2.31.9000.so`; do echo $i; diff $i
>> /SCRATCH/vgupta/gnu2/install/glibcs/$i ; echo $?; done
>>
>> ./aarch64-linux-gnu/lib64/libm-2.31.9000.so
>> 0
>> ./arm-linux-gnueabi/lib/libm-2.31.9000.so
>> 0
>> ./x86_64-linux-gnu/lib64/libm-2.31.9000.so
>> 0
>> ./arm-linux-gnueabihf/lib/libm-2.31.9000.so
>> 0
>> ./riscv64-linux-gnu-rv64imac-lp64/lib64/lp64/libm-2.31.9000.so
>> 0
>> ./riscv64-linux-gnu-rv64imafdc-lp64/lib64/lp64/libm-2.31.9000.so
>> 0
>> ./powerpc-linux-gnu/lib/libm-2.31.9000.so
>> 0
>> ./microblaze-linux-gnu/lib/libm-2.31.9000.so
>> 0
>> ./nios2-linux-gnu/lib/libm-2.31.9000.so
>> 0
>> ./hppa-linux-gnu/lib/libm-2.31.9000.so
>> 0
>> ./s390x-linux-gnu/lib64/libm-2.31.9000.so
>> 0
> 
> Is this sufficient for comparison ?

ping !
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