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authorRichard Sandiford <richard.sandiford@arm.com>2023-11-11 17:28:59 +0000
committerRichard Sandiford <richard.sandiford@arm.com>2023-11-11 17:28:59 +0000
commit718228a6f479fe252e0e6f71933c2465b7b480a9 (patch)
tree2d2ab235e042750487e81f3b8584de1554a4cd9e /gcc
parent93d65f39bc5c3dc318deb6da0e3633f3a4c6c34d (diff)
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mode-switching: Use 1-based edge aux fields
The pass used the edge aux field to record which mode change should happen on the edge, with -1 meaning "none". It's more convenient for later patches to leave aux zero for "none", and use numbers based at 1 to record a change. gcc/ * mode-switching.cc (commit_mode_sets): Use 1-based edge aux values.
Diffstat (limited to 'gcc')
-rw-r--r--gcc/mode-switching.cc8
1 files changed, 4 insertions, 4 deletions
diff --git a/gcc/mode-switching.cc b/gcc/mode-switching.cc
index 7a5c499..6b56611 100644
--- a/gcc/mode-switching.cc
+++ b/gcc/mode-switching.cc
@@ -106,10 +106,10 @@ commit_mode_sets (struct edge_list *edge_list, int e, struct bb_info *info)
for (int ed = NUM_EDGES (edge_list) - 1; ed >= 0; ed--)
{
edge eg = INDEX_EDGE (edge_list, ed);
- int mode;
- if ((mode = (int)(intptr_t)(eg->aux)) != -1)
+ if (eg->aux)
{
+ int mode = (int) (intptr_t) eg->aux - 1;
HARD_REG_SET live_at_edge;
basic_block src_bb = eg->src;
int cur_mode = info[src_bb->index].mode_out;
@@ -728,14 +728,14 @@ optimize_mode_switching (void)
{
edge eg = INDEX_EDGE (edge_list, ed);
- eg->aux = (void *)(intptr_t)-1;
+ eg->aux = (void *) (intptr_t) 0;
for (i = 0; i < no_mode; i++)
{
int m = targetm.mode_switching.priority (entity_map[j], i);
if (mode_bit_p (insert[ed], j, m))
{
- eg->aux = (void *)(intptr_t)m;
+ eg->aux = (void *) (intptr_t) (m + 1);
break;
}
}