This patch adds SET rtx costs to MIPS. Since FPR modes and GPR modes
aren't tieable, the effect is to restore the original lower-subreg behaviour
of splitting all multiword modes.
Tested by setting LOG_COSTS to 1 and checking that the costs looked sensible.
Also tested by compiling cc1 .ii files
On Sun, 2012-05-06 at 20:13 +0100, Richard Sandiford wrote:
This patch adds SET rtx costs to MIPS. Since FPR modes and GPR modes
aren't tieable, the effect is to restore the original lower-subreg behaviour
of splitting all multiword modes.
Tested by setting LOG_COSTS to 1 and checking that
Oleg Endo oleg.e...@t-online.de wrote:
The attached patch does pretty much the same for the SH target.
Tested also by setting LOG_COSTS to 1 and checking that multi-word modes
are marked for splitting (except for DImode zero_extend lowering).
Also verified that newlib compiles again.
OK?
