Displaying 4 results from an estimated 4 matches for "ed37daf5".
2010 Jan 26
2
[LLVMdev] some llvm/clang missed optimizations
...t
often appears in machine-generated C or where loops contain logging code
that is conditionally compiled away.
3.
Repetitive code with lots of bitwise operations is compiled by LLVM into
much larger code than the other compilers:
http://embed.cs.utah.edu/embarrassing/jan_10/harvest/source/ED/ED37DAF5.shtml
http://embed.cs.utah.edu/embarrassing/jan_10/harvest/source/1F/1F4003C7.shtml
Note that this is straight-line code, so LLVM's output will run 4-5
times longer than everyone else's.
I'll be interested to learn the source of this one.
4.
It seems possible to do a better job rec...
2010 Jan 27
2
[LLVMdev] some llvm/clang missed optimizations
>> Repetitive code with lots of bitwise operations is compiled by LLVM into
>> much larger code than the other compilers:
>>
>> http://embed.cs.utah.edu/embarrassing/jan_10/harvest/source/ED/ED37DAF5.shtml
>> http://embed.cs.utah.edu/embarrassing/jan_10/harvest/source/1F/1F4003C7.shtml
>>
>> Note that this is straight-line code, so LLVM's output will run 4-5
>> times longer than everyone else's.
>>
>> I'll be interested to learn the source of this...
2010 Jan 26
0
[LLVMdev] some llvm/clang missed optimizations
...ition. Shouldn't be too
hard to fix now that we have overflow flags for addition.
> 3.
>
> Repetitive code with lots of bitwise operations is compiled by LLVM into
> much larger code than the other compilers:
>
> http://embed.cs.utah.edu/embarrassing/jan_10/harvest/source/ED/ED37DAF5.shtml
> http://embed.cs.utah.edu/embarrassing/jan_10/harvest/source/1F/1F4003C7.shtml
>
> Note that this is straight-line code, so LLVM's output will run 4-5
> times longer than everyone else's.
>
> I'll be interested to learn the source of this one.
This looks like a...
2010 Jan 27
0
[LLVMdev] some llvm/clang missed optimizations
...55 PM, John Regehr <regehr at cs.utah.edu> wrote:
>>> Repetitive code with lots of bitwise operations is compiled by LLVM into
>>> much larger code than the other compilers:
>>>
>>>
>>> http://embed.cs.utah.edu/embarrassing/jan_10/harvest/source/ED/ED37DAF5.shtml
>>>
>>> http://embed.cs.utah.edu/embarrassing/jan_10/harvest/source/1F/1F4003C7.shtml
>>>
>>> Note that this is straight-line code, so LLVM's output will run 4-5
>>> times longer than everyone else's.
>>>
>>> I'll be i...