Re: [patch] Disable if_conversion2 for Og

2014-04-16 Thread Richard Earnshaw
On 16/04/14 11:30, Joey Ye wrote: > > >> -Original Message- >> From: Richard Earnshaw >> Sent: Wednesday, April 16, 2014 6:21 PM >> To: Joey Ye >> Cc: gcc-patches@gcc.gnu.org >> Subject: Re: [patch] Disable if_conversion2 for Og >> >>

RE: [patch] Disable if_conversion2 for Og

2014-04-16 Thread Joey Ye
> -Original Message- > From: Richard Earnshaw > Sent: Wednesday, April 16, 2014 6:21 PM > To: Joey Ye > Cc: gcc-patches@gcc.gnu.org > Subject: Re: [patch] Disable if_conversion2 for Og > > On 16/04/14 11:17, Joey Ye wrote: > >> -Original Message

RE: [patch] Disable if_conversion2 for Og

2014-04-16 Thread Joey Ye
> -Original Message- > From: Richard Earnshaw > Sent: Wednesday, April 16, 2014 6:04 PM > To: Joey Ye > Cc: gcc-patches@gcc.gnu.org > Subject: Re: [patch] Disable if_conversion2 for Og > > On 16/04/14 11:02, Joey Ye wrote: > > > > > >>

Re: [patch] Disable if_conversion2 for Og

2014-04-16 Thread Richard Earnshaw
On 16/04/14 11:17, Joey Ye wrote: >> -Original Message- >> From: Richard Earnshaw >> Sent: Wednesday, April 16, 2014 6:04 PM >> To: Joey Ye >> Cc: gcc-patches@gcc.gnu.org >> Subject: Re: [patch] Disable if_conversion2 for Og &g

Re: [patch] Disable if_conversion2 for Og

2014-04-16 Thread Richard Earnshaw
On 16/04/14 11:02, Joey Ye wrote: > > >> -Original Message- >> From: Richard Earnshaw >> Sent: Wednesday, April 16, 2014 5:44 PM >> To: Joey Ye >> Cc: gcc-patches@gcc.gnu.org >> Subject: Re: [patch] Disable if_conversion2 for Og >> >>

RE: [patch] Disable if_conversion2 for Og

2014-04-16 Thread Joey Ye
> -Original Message- > From: Richard Earnshaw > Sent: Wednesday, April 16, 2014 5:44 PM > To: Joey Ye > Cc: gcc-patches@gcc.gnu.org > Subject: Re: [patch] Disable if_conversion2 for Og > > Arguably, this is a bug in gdb. The debugger should understand when a &g

Re: [patch] Disable if_conversion2 for Og

2014-04-16 Thread Richard Earnshaw
On 16/04/14 10:30, Richard Biener wrote: > On Wed, Apr 16, 2014 at 9:46 AM, Joey Ye wrote: >> >> >>> -Original Message- >>> From: Joey Ye [mailto:joey...@arm.com] >>> Sent: Tuesday, April 15, 2014 6:37 PM >>> To: 'Richard Bien

Re: [patch] Disable if_conversion2 for Og

2014-04-16 Thread Richard Earnshaw
On 15/04/14 02:59, Joey Ye wrote: > If-converstion is harmful to optimized debugging as it generates conditional > execution instructions with line number information, which resulted in a > dillusion to developers that both then-else branches are executed. > > For example: > test.c: > 1: unsigned

Re: [patch] Disable if_conversion2 for Og

2014-04-16 Thread Richard Biener
On Wed, Apr 16, 2014 at 9:46 AM, Joey Ye wrote: > > >> -Original Message- >> From: Joey Ye [mailto:joey...@arm.com] >> Sent: Tuesday, April 15, 2014 6:37 PM >> To: 'Richard Biener' >> Cc: GCC Patches >> Subject: RE: [patch] Disable if_

RE: [patch] Disable if_conversion2 for Og

2014-04-16 Thread Joey Ye
> -Original Message- > From: Joey Ye [mailto:joey...@arm.com] > Sent: Tuesday, April 15, 2014 6:37 PM > To: 'Richard Biener' > Cc: GCC Patches > Subject: RE: [patch] Disable if_conversion2 for Og > > > Ok for trunk and branches after a while. Wh

RE: [patch] Disable if_conversion2 for Og

2014-04-15 Thread Joey Ye
> -Original Message- > From: Richard Biener [mailto:richard.guent...@gmail.com] > Sent: Tuesday, April 15, 2014 4:05 PM > To: Joey Ye > Cc: GCC Patches > Subject: Re: [patch] Disable if_conversion2 for Og > > On Tue, Apr 15, 2014 at 3:59 AM, Joey Ye wrote: >

Re: [patch] Disable if_conversion2 for Og

2014-04-15 Thread Richard Biener
On Tue, Apr 15, 2014 at 3:59 AM, Joey Ye wrote: > If-converstion is harmful to optimized debugging as it generates conditional > execution instructions with line number information, which resulted in a > dillusion to developers that both then-else branches are executed. > > For example: > test.c: