Expr Constructor Question Part 2

[Jim Wilson]

Weihaw Chuang wrote:
> I would like to force a struct to a temporary on stack.

In a user program, or internally to gcc?  You weren't clear about this.

Internally to gcc, you probably want to call 
lang_hooks.mark_addressable, which sets TREE_ADDRESSABLE, which should 
force it to the stack.

In a user program, taking the address of a variable used to force it to 
the stack, but the optimizers have gotten smarter, so this might not be 
safe anymore.  You might have to declare it volatile, and take its address.

-- 
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com