noreturn function attribute and ret asm instruction

[Richard Henderson]

On Wed, Oct 01, 2003 at 12:00:22AM -0700, Zack Weinberg wrote:
> It might be harder at the tree level; I'm not sure how noreturn is
> being represented in tree-ssa.

Only in the CFG.  If there's no edge to exit, then there's
no flow to exit.  You'd have to find a way to represent the
noreturn attribute in the ASM_EXPR so that it survives until
the CFG is created.


r~