Re: Google SoC Project Proposal: Better Uninitialized Warnings

2007-03-19 Thread Jeffrey Law
On Sat, 2007-03-17 at 18:28 +, Manuel López-Ibáñez wrote: This is the project proposal that I am planning to submit to Google Summer of Code 2007. It is based on previous work of Jeffrey Laws, Diego Novillo and others. I hope someone will find it interesting and perhaps would like to act

Re: Google SoC Project Proposal: Better Uninitialized Warnings

2007-03-19 Thread Robert Dewar
Jeffrey Law wrote: The one technical bit we never tacked was unoptimized compilation; I goof'd at one time and thought we went ahead and build the SSA graph even when not optimizing which is incorrect. I don't think fixing this should be a requirement for improving the current situation with

Re: Google SoC Project Proposal: Better Uninitialized Warnings

2007-03-19 Thread Manuel López-Ibáñez
On 19/03/07, Robert Dewar [EMAIL PROTECTED] wrote: Jeffrey Law wrote: The one technical bit we never tacked was unoptimized compilation; I goof'd at one time and thought we went ahead and build the SSA graph even when not optimizing which is incorrect. I don't think fixing this should be a

Re: Google SoC Project Proposal: Better Uninitialized Warnings

2007-03-19 Thread Diego Novillo
Manuel López-Ibáñez wrote on 03/17/07 14:28: This is the project proposal that I am planning to submit to Google Summer of Code 2007. It is based on previous work of Jeffrey Laws, Diego Novillo and others. I hope someone will find it interesting and Yes, I can act as a mentor. I'm

Re: Google SoC Project Proposal: Better Uninitialized Warnings

2007-03-19 Thread Manuel López-Ibáñez
On 19/03/07, Diego Novillo [EMAIL PROTECTED] wrote: Manuel López-Ibáñez wrote on 03/17/07 14:28: This is the project proposal that I am planning to submit to Google Summer of Code 2007. It is based on previous work of Jeffrey Laws, Diego Novillo and others. I hope someone will find it

Re: Google SoC Project Proposal: Better Uninitialized Warnings

2007-03-19 Thread Joe Buck
On Mon, Mar 19, 2007 at 09:27:25AM -0400, Diego Novillo wrote: Manuel López-Ibáñez wrote on 03/17/07 14:28: This is the project proposal that I am planning to submit to Google Summer of Code 2007. It is based on previous work of Jeffrey Laws, Diego Novillo and others. I hope someone will

Re: Google SoC Project Proposal: Better Uninitialized Warnings

2007-03-19 Thread Andrew MacLeod
On Mon, 2007-03-19 at 10:33 -0700, Joe Buck wrote: On Mon, Mar 19, 2007 at 09:27:25AM -0400, Diego Novillo wrote: Manuel López-Ibáñez wrote on 03/17/07 14:28: This is the project proposal that I am planning to submit to Google Summer of Code 2007. It is based on previous work of

Re: Google SoC Project Proposal: Better Uninitialized Warnings

2007-03-19 Thread Daniel Jacobowitz
On Mon, Mar 19, 2007 at 01:49:55PM -0400, Andrew MacLeod wrote: Perhaps this ought to be looked at again with some seriousness. I think this is an idea whose time has either come, or will shortly. GCC's -O0 is much more extreme than that of other compilers I've used. -- Daniel Jacobowitz

Re: Google SoC Project Proposal: Better Uninitialized Warnings

2007-03-19 Thread Manuel López-Ibáñez
On 19/03/07, Daniel Jacobowitz [EMAIL PROTECTED] wrote: On Mon, Mar 19, 2007 at 01:49:55PM -0400, Andrew MacLeod wrote: Perhaps this ought to be looked at again with some seriousness. I think this is an idea whose time has either come, or will shortly. GCC's -O0 is much more extreme than that

Re: Google SoC Project Proposal: Better Uninitialized Warnings

2007-03-19 Thread Joe Buck
On Mon, Mar 19, 2007 at 02:34:22PM -0400, Daniel Jacobowitz wrote: On Mon, Mar 19, 2007 at 01:49:55PM -0400, Andrew MacLeod wrote: Perhaps this ought to be looked at again with some seriousness. I think this is an idea whose time has either come, or will shortly. GCC's -O0 is much more

Re: Google SoC Project Proposal: Better Uninitialized Warnings

2007-03-19 Thread Jeffrey Law
On Mon, 2007-03-19 at 18:45 +, Manuel López-Ibáñez wrote: On 19/03/07, Daniel Jacobowitz [EMAIL PROTECTED] wrote: On Mon, Mar 19, 2007 at 01:49:55PM -0400, Andrew MacLeod wrote: Perhaps this ought to be looked at again with some seriousness. I think this is an idea whose time has

Re: Google SoC Project Proposal: Better Uninitialized Warnings

2007-03-19 Thread Joe Buck
On Mon, Mar 19, 2007 at 03:32:19PM -0400, David Edelsohn wrote: Joe Buck writes: Joe What worries me is that we can't afford to make -O0 run significantly Joe slower than it does now. Cycle speeds are no longer increasing, we have Joe to be very careful about slowing things down.

Re: Google SoC Project Proposal: Better Uninitialized Warnings

2007-03-19 Thread Robert Dewar
Joe Buck wrote: Agreed; -O0 could in principle be sped up; the important thing is making sure that it happens. In this case, adding a pass that computes SSA information that is used only for uninitialized variable warnings costs time; it could be compensated for by finding other speedups, but

Re: Google SoC Project Proposal: Better Uninitialized Warnings

2007-03-18 Thread Andi Kleen
Manuel López-Ibáñez [EMAIL PROTECTED] writes: This is the project proposal that I am planning to submit to Google Summer of Code 2007. It is based on previous work of Jeffrey Laws, Diego Novillo and others. I hope someone will find it interesting and perhaps would like to act as mentor.

Re: Google SoC Project Proposal: Better Uninitialized Warnings

2007-03-18 Thread Robert Dewar
Manuel López-Ibáñez wrote: This is the project proposal that I am planning to submit to Google Summer of Code 2007. It is based on previous work of Jeffrey Laws, Diego Novillo and others. I hope someone will find it interesting and perhaps would like to act as mentor. Feedback is very welcome