Exception causing insns in delay slots

Sun Apr 28 08:23:00 GMT 2002

 From: law@redhat.com
 Date: 2002年4月26日 14:37:49 -0600

 ps. The trick of modifying the return value in a delay slot of a call is an
 interesting optimization, but is not generally useful on targets which have a
 call/return stack for predicting branches. This is why we disable it anytime
 we're optimizing for a PA8000 or newer machine.

I keep forgetting the make the Sparc backend do likewise when
generating code for UltraSPARC or later, for the same reason.