Re: [Open64-devel] loopnest in inliner

[Gautam C. <gau...@ya...>]

Thanks, I thought you were using -ipa and I thought you were referring to the 
IPA summary phase in IPL.

For the lightweight inliner, you are right. In case anyone is interested, if you 
were using the GNU3-based front-end, then you will still see WHILE_DO in 
lw_inline.

Gautam



________________________________
From: Gang Yu <yug...@gm...>
To: Gautam Chakrabarti <gau...@ya...>
Cc: ope...@li...
Sent: Wed, July 21, 2010 11:45:32 PM
Subject: Re: [Open64-devel] loopnest in inliner

Gautam:

   I just use lw_inline(_LIGHTWEIGHT_INLINER), compiling using

$TOOLROOT/bin/opencc -show -keep -c -INLINE:preempt foo.c 

opencc is v4.2.3

thanks

Gang



On Thu, Jul 22, 2010 at 2:07 PM, Gautam Chakrabarti <gau...@ya...> 
wrote:

Hi,
>
>I am not sure why you are seeing no DO_LOOP/WHILE_DO. Generation of WHILE_DO 
>does not depend on WOPT, so even if you compile with -O0 -ipa, you should still 
>see WHILE_DO. If you compile with just -ipa (which invokes the preoptimizer 
>before IPA), you should see DO_LOOP in the code.
>
>What options are you using, and what compiler version?
>
>Gautam
>
>
>
>
________________________________
From: Gang Yu <yug...@gm...>
>To: ope...@li...
>Sent: Wed, July 21, 2010 6:29:53 PM
>Subject: [Open64-devel] loopnest in inliner
>
>
>Hi, all:
>
>    I am just get in trouble in ipa inliner. As you know, there is a variable 
>*loopnest* in Summary_Callsite which indicates the loopnest of the callsite. 
>loopnest is obtained on up-traversel the whirl tree(ipl_summary_template.h). 
>However, since the IPA is before wopt phase,  the whirl could not generate any 
>OPR_DO_LOOP,OPR_WHILE_DO,  so, anytime I get loopnest always be 0. Does anyone 
>previously meet the problem? Thanks for your correction and advice.
>
>   Thanks for your attentions!  
>
>Below is a test case:
>
>int x;
>int y=5;
>
>static int foo(int x){
>  int i;
>  int sum;
>  for(i=x;i<x+2;i++){
>    sum+=i;
>  }
>  return sum;
>}
>
>
>
>int main(int argc, char* argv[]){
>  int j;
>  int i;
>  if (y>=1){
>    x=5;
>    for(i=0;i<10;i++)
>      for(j=0;j<2;j++){
>    x=foo(x);
>      }
>  }
>}
>
>Gang
>
>