Re: [patch PR middle-end/39326 - compile time and memory explosion in combine

2013-03-11 Thread Steven Bosscher
On Mon, Mar 11, 2013 at 10:23 AM, Richard Biener wrote: > On Sat, Mar 9, 2013 at 11:23 PM, Steven Bosscher wrote: >> The attached patch fixes one of the (at least) three scalability >> problems reported in PR middle-end/39326. This problem is that combine >> takes forever and increases the memory f

Re: [patch PR middle-end/39326 - compile time and memory explosion in combine

2013-03-11 Thread Jeff Law
On 03/11/2013 03:23 AM, Richard Biener wrote: On Sat, Mar 9, 2013 at 11:23 PM, Steven Bosscher wrote: Hello, The attached patch fixes one of the (at least) three scalability problems reported in PR middle-end/39326. This problem is that combine takes forever and increases the memory footprint

Re: [patch PR middle-end/39326 - compile time and memory explosion in combine

2013-03-11 Thread Richard Biener
On Sat, Mar 9, 2013 at 11:23 PM, Steven Bosscher wrote: > Hello, > > The attached patch fixes one of the (at least) three scalability > problems reported in PR middle-end/39326. This problem is that combine > takes forever and increases the memory footprint from ~650MB to >7GB. > The cause is DSE

[patch PR middle-end/39326 - compile time and memory explosion in combine

2013-03-09 Thread Steven Bosscher
Hello, The attached patch fixes one of the (at least) three scalability problems reported in PR middle-end/39326. This problem is that combine takes forever and increases the memory footprint from ~650MB to >7GB. The cause is DSE creating a lot of new registers in replace_read, and those registers