http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56102
bin.cheng changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56102
Ramana Radhakrishnan changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56102
--- Comment #2 from bin.cheng 2013-01-25
07:25:34 UTC ---
Created attachment 29270
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29270
correct test case
The previous test case is not appropriate, because gcc won't split even with
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56102
--- Comment #1 from bin.cheng 2013-01-25
03:46:59 UTC ---
I have investigated this issue.
GCC uses function init_lower_subreg to initialize costs of MOVE insn with
different mode, then uses this information to decompose multi-word pseudo
