MatCat.OpenSource/8sa1-gcc
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

ssa.c (convert_from_ssa): Tell life_analysis we need death notes.

Browse Source 
* ssa.c (convert_from_ssa): Tell life_analysis we need death
	notes.
	(make_regs_equivalent_over_bad_edges): Only look at abnormal
	critical edges.

From-SVN: r34031
This commit is contained in:
Clinton Popetz 2000-05-19 19:23:02 +00:00 committed by Clinton Popetz
parent ea25bef41f
commit 555a0aa72e
2 changed files with 11 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
Fri May 19 12:05:13 2000 Clinton Popetz <cpopetz@cygnus.com>
* ssa.c (convert_from_ssa): Tell life_analysis we need death
notes.
(make_regs_equivalent_over_bad_edges): Only look at abnormal
critical edges.
2000-05-19 Zack Weinberg <zack@wolery.cumb.org>
* cpphash.c (funlike_macroexpand): Make sure not to walk p1

6
gcc/ssa.c
View File

@ -1221,7 +1221,8 @@ make_regs_equivalent_over_bad_edges (bb, reg_partition)
/* Scan incoming abnormal critical edges. */
for (e = b->pred; e; e = e->pred_next)
if (e->flags & (EDGE_ABNORMAL | EDGE_CRITICAL))
if ((e->flags & (EDGE_ABNORMAL | EDGE_CRITICAL))
== (EDGE_ABNORMAL | EDGE_CRITICAL))
{
rtx *alt = phi_alternative (set, e->src->index);
int alt_regno;
@ -1812,7 +1813,8 @@ convert_from_ssa()
rtx insns = get_insns ();
/* Need global_live_at_{start,end} up to date. */
life_analysis (insns, NULL, PROP_KILL_DEAD_CODE | PROP_SCAN_DEAD_CODE);
life_analysis (insns, NULL,
PROP_KILL_DEAD_CODE | PROP_SCAN_DEAD_CODE | PROP_DEATH_NOTES);
/* Figure out which regs in copies and phi nodes don't conflict and
therefore can be coalesced. */