Pull over a fix from gcc 4.1 branch.
ok mrg@
Author: sayle
Date: Fri Jul 21 13:22:31 2006
New Revision: 115644
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=115644
Log:
PR middle-end/28283
* expmed.c (expand_shift): Additionally check that the shift_cost
is not MAX_COST and that INTVAL(op1) is less than MAX_BITS_PER_WORD
before implementing a LSHIFT_EXPR as a sequence of additions.
* config/sh/sh.c (shift_costs): Return MAX_COST to inform the
middle-end that DImode shifts need to be synthesized by expand.
Modified:
branches/gcc-4_1-branch/gcc/ChangeLog
branches/gcc-4_1-branch/gcc/config/sh/sh.c
branches/gcc-4_1-branch/gcc/expmed.c
