Initial shrink-wrapping patch

Bernd Schmidt
Tue Sep 13 12:49:00 GMT 2011

On 09/13/11 10:35, Richard Sandiford wrote:

>> Also, it turns out I need to pretend that trap_if requires the prologue
>> due to the testcase you also ran across, so a for_each_rtx walk is
>> required anyway.
> Why does TRAP_IF inherently need a prologue though?  The CFA information
> should be correct regardless.

It is until you cross-jump the two trap_ifs. So we have to disable
either one of the two optimizations for them.


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