[PATCH GCC]Catch more MEM_REFs sharing common addressing part in gimple strength reduction

[bin.cheng]

> -----Original Message-----
> From: Dominique Dhumieres [mailto:dominiq@lps.ens.fr]
> Sent: Wednesday, September 18, 2013 1:47 AM
> To: gcc-patches@gcc.gnu.org
> Cc: hjl.tools@gmail.com; Bin Cheng
> Subject: Re: [PATCH GCC]Catch more MEM_REFs sharing common
> addressing part in gimple strength reduction
> 
> The new test gcc.dg/tree-ssa/slsr-39.c fails in 64 bit mode (see
> http://gcc.gnu.org/ml/gcc-regression/2013-09/msg00455.html ).
> Looking for MEM in the dump returns
> 
>   _12 = MEM[(int[50] *)_17];
>   MEM[(int[50] *)_20] = _13;
> 

Thanks for reporting, I think this can be fixed by patch:
http://gcc.gnu.org/ml/gcc-patches/2013-09/msg00761.html

Thanks.
bin