Re: [Tinycc-devel] Proposal for handling alloca(). Anyone see a problem with it?

[Daniel Glöckner]

On Tue, May 08, 2007 at 02:31:33PM -0400, David A. Wheeler wrote:
> > Unfortunately this breaks ({int x=1; x;}).
> 
> Sorry, I don't understand that last sentence.

({int x=1; x;}) puts a reference to x on vtop and leaves the block.
We may not reuse x's stack space.

int f() {
  return ({int x=1; x;})+({int y=2; y;});
}
is a more complete example that will fail using the intended
optimization. ({}) may not be the only problematic situation.

  Daniel