------- Comment #2 from zadeck at naturalbridge dot com 2007-10-15 13:11 ------- Subject: Re: [4.3 Regression] ICE in local_cprop_pass with -ftrapv for crafty
> On Sun, Oct 14, 2007 at 12:29:44PM -0400, Kenneth Zadeck wrote: > > > I have not looked at this bug. I am happy to if you want. I am sure > > > that it will be trivial to modify the pass that moved/created the insn > > > in the middle of the libcall to inherit the LIB_CALL_ID from the > > > previous insn. > > That is not desirable, if anything in this case the insn should be > added before the whole libcall sequence rather than before the insn > that actually needs it. Otherwise, useless insns added to the libcall > sequences wouldn't be ever DCEd. > While it might be easy to modify the instantiate_virtual_regs, there > are dozens of other passes that do similar things, so at least for 4.3 it is > highly unlikely they will be all modified. > Jakub Jakub, i will fix this by moving the insn before the libcall. It may take me a day of so because i am under the weather. But i will do it soon. kenny -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33644
