------- Comment #3 from ro at techfak dot uni-bielefeld dot de 2007-09-05
18:09 -------
Subject: Re: [4.3 regression] Bootstrap failure on alpha: ICE in convert_move,
at expr.c:369
A reghunt revealed that this patch
2007-08-31 Richard Sandiford <[EMAIL PROTECTED]>
* optabs.c (shift_optab_p, commutative_optab_p): New functions,
split out from expand_binop.
(avoid_expensive_constant): New function.
(expand_binop_directly): Remove commutative_op argument and
call cummutative_optab_p instead. Do not change op0 or op1
when swapping xop0 and xop1. Apply avoid_expensive_constant
to each argument after potential swapping. Enforce the
canonical order of commutative operands.
(expand_binop): Use shift_optab_p and commutative_optab_p.
Update the calls to expand_binop_directly. Only force constants
into registers when widening an operation. Only swap operands
once a direct expansion has been rejected.
(expand_twoval_binop): Only force constants into registers when
using a direct expansion.
is the culprit.
Rainer
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33306
