------- Comment #1 from nemet at gcc dot gnu dot org 2009-08-25 23:05 -------
It's also a regression if the load-immediates can dual issue. I.e. see below
how the code gets worse between sched1 and sched2 on octeon.
I am cc'ing Vlad in case he has some ideas.
;; ======================================================
;; -- basic block 2 from 7 to 10 -- before reload
;; ======================================================
;; 0--> 7 r195=0x7
:octeon_pipe0|octeon_pipe1
;; 0--> 9 r196=0x4
:octeon_pipe0|octeon_pipe1
;; 1--> 8 [$4]=r195 :octeon_pipe0
;; 2--> 10 [$5]=r196 :octeon_pipe0
;; Ready list (final):
;; total time = 2
;; new head = 7
;; new tail = 10
;; Procedure interblock/speculative motions == 0/0
;; ======================================================
;; -- basic block 2 from 7 to 18 -- after reload
;; ======================================================
;; 0--> 7 $2=0x7
:octeon_pipe0|octeon_pipe1
;; 1--> 8 [$4]=$2 :octeon_pipe0
;; 1--> 14 $2=0x4
:octeon_pipe0|octeon_pipe1
;; 2--> 10 [$5]=$2 :octeon_pipe0
;; 3--> 18 return :octeon_pipe0
;; Ready list (final):
;; total time = 3
;; new head = 7
;; new tail = 18
--
nemet at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |vmakarov at gcc dot gnu dot
| |org, nemet at gcc dot gnu
| |dot org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2009-08-25 23:05:53
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41171
