Displaying 3 results from an estimated 3 matches for "b0b3d67c".
2009 Mar 02
0
[LLVMdev] Tight overlapping loops and performance
On Mon, Mar 2, 2009 at 11:38 AM, Jonathan Turner <probata at hotmail.com> wrote:
> With gcc -O3 4.2 and 4.4 we match 1.0s. The LLVM, after running it through
> opt -std-compile-opts, is around 1.7s.
Hmm, on my computer, I get around 2.5 seconds with both gcc -O3 and
llvm-gcc -O3 (using llvm-gcc from svn). Not sure what you're doing
differently; I wouldn't be surprised if
2009 Mar 02
2
[LLVMdev] Tight overlapping loops and performance
I was playing around in x86 assembly the other day, looking at ways to optimize my cooperative multitasking system. Currently, it uses a 'timeout' counter that is decremented each time through a loop, letting me stop the loop and go to the next cooperative thread if the loop runs a little long.
The asm has two overlapping loops:
---
_main:
mov ecx, 1000000000
timeoutloop:
2009 Mar 02
3
[LLVMdev] Tight overlapping loops and performance
...t list.
http://windowslive.com/connect/post/marcusatmicrosoft.spaces.live.com-Blog-cns!503D1D86EBB2B53C!2285.entry?ocid=TXT_TAGLM_WL_UGC_Contacts_032009
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