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Re: Possible patch for tree-optimization/13000
On Wed, Jan 19, 2005 at 05:10:48PM -0500, Ian Lance Taylor wrote:
> I hope I'm not going down a rathole here, though.
Hard to say... :-( Unfortunately the Correct Way to do this is
queued for 4.1, where we build a CFG for functions before inlining.
> * gimplify.c (shortcut_cond_expr): Don't emit a jump over the else
> branch if we don't need one.
Please add a word of commentary about why we're bothering to do this
here, and why we can't use block_may_fallthru. (At minimum, the
behaviour of SWITCH_EXPR isn't the same until gimplification is
complete. Perhaps it's a mistake to give the two behaviours the