------- Comment #6 from pinskia at gcc dot gnu dot org 2006-09-04 04:12 -------
(In reply to comment #5)
> Subject: Re: [4.2 regression] ICE in add_virtual_operand, at
> tree-ssa-operands.c:1309
>
> Why does loop change the SMT usage?
it is complete unrolling, we change the statements from a loop to something
like, where the constants are really folded (I am too lazy to fold it here):
_buffer[64 - 8] = (unsigned char)lenInBits;
_buffer[64 - 8+1] = (unsigned char)lenInBits;
> In addition, since there are times loop doesn't do anything, you
> should simply be returning PROP_smt_usage when it does do something,
> and nothing otherwise.
I will see if I can change unroller to return true if we did something.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28937
