On Fri, May 27, 2011 at 4:51 PM, Ian Lance Taylor <iant@xxxxxxxxxx> wrote: > Rony Paul <ronypaul77@xxxxxxxxx> writes: > >> suppose I have the following piece of code in my program. >> >> extern int __ea x; >> int y; >> y = x; >> >> that means I am copying data from one address space to another. >> in that case will the method spu_addr_space_convert (rtx op, tree >> from_type, tree to_type); be called by the compiler? >> in the spu.c file the defination of " spu_addr_space_convert " is >> given. but when and under which condition they will be called ? > > I'm pretty sure it won't be called. That function converts a pointer to > one address space into a pointer to a different address space. No such > conversion is happening here. > >> where >> is it defined? > > The function spu_addr_space_convert is the SPU-specific implementation > of the target hook TARGET_ADDR_SPACE_CONVERT which is documented in the > section on named address spaces. > > Ian > Then if I want to prevent these type of copying data from one address space to another (ie. I dont want to allow these type of copy operation in my application). where should I write code in GCC compiler? Actually I can define different address space, but still I cant store there data in different byte order. would you give me any idea about how to store data in different byte order in different address space? -Rony please suggest me,
