Displaying 2 results from an estimated 2 matches for "meissner2".
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meissner
2010 Nov 14
0
[LLVMdev] tot clang/llvm and tot gcc performance comparision
...ell if gcc is inlining significantly more than llvm? We have reports that this is one of the issue plaguing eon performance.
There are also some relatively well known spec optimizations that we haven't implemented. e.g. http://gcc.gnu.org/wiki/summit2010?action=AttachFile&do=get&target=meissner2.pdf Are there more?
Evan
On Nov 13, 2010, at 12:56 PM, Xinliang David Li wrote:
>
> Hi, I have looked at the LLVM code generation quality using small test cases and in general it is better than I thought and in some cases better than gcc. However, there are still some gap in SPEC performa...
2010 Nov 13
3
[LLVMdev] tot clang/llvm and tot gcc performance comparision
Hi, I have looked at the LLVM code generation quality using small test cases
and in general it is better than I thought and in some cases better than
gcc. However, there are still some gap in SPEC performance. I have not
looked at the root cause of those gaps. Anyone who cares about LLVM
performance need to take this seriously.
For fair comparison, I used -fno-strict-aliasing in gcc to turn off