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 >> >> Arguably, this is a bug in gdb. The debugger should understand when a >> breakpointed conditional instruction is not going to execute and silently >> continue. That preserves the illusion of not executing the code without >> requiring the compiler to de-optimize things. >> >> R. > Or compiler just optimizes it, and emits generic DWARFx information to help > GDB handle it in more target independently? > > - Joey >
I'm not sure extra dwarf info would help much. The debugger still has to understand that the breakpoint has not really been hit. R.
