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r154123 - in /trunk/gcc: ChangeLog regrename.c
- From: bernds at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Thu, 12 Nov 2009 18:12:10 -0000
- Subject: r154123 - in /trunk/gcc: ChangeLog regrename.c
Author: bernds
Date: Thu Nov 12 18:12:09 2009
New Revision: 154123
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=154123
Log:
PR rtl-opt/38582
* regrename.c (struct du_head): New structure; some elements moved
from...
(struct du_chain): ... this one.
(open_chains, closed_chains): Now of type struct du_head *.
(do_replace): Accept du_head argument, not du_chain. All callers
changed. Modified code to match new data structures.
(build_def_use): Return a list of du_head structures. Modified code
to match new data structures.
(dump_def_use_chain): Accept du_head argument, not du_chain. All
callers changed. Modified code to match new data structures.
(merge_overlapping_regs): Accept du_head argument, not du_chain. All
callers changed. Modified code to match new data structures.
(scan_rtx_reg): Change type of this_regno and this_nregs to unsigned.
Allocate a du_head structure as well as a du_chain when creating a
new chain. Modified other code to match new data structures.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/regrename.c