From 5811c6926450c4aafd2f9c87a2c6fe73b517f2c6 Mon Sep 17 00:00:00 2001
From: Christoph Bumiller <e0425955@student.tuwien.ac.at>
Date: Sun, 25 Jul 2010 22:21:38 +0200
Subject: nv50: simple reload elimination and local CSE

---
 src/gallium/drivers/nv50/nv50_pc.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'src/gallium/drivers/nv50/nv50_pc.c')

diff --git a/src/gallium/drivers/nv50/nv50_pc.c b/src/gallium/drivers/nv50/nv50_pc.c
index 89dbc7aa20..e09f94074d 100644
--- a/src/gallium/drivers/nv50/nv50_pc.c
+++ b/src/gallium/drivers/nv50/nv50_pc.c
@@ -163,6 +163,24 @@ nv_nvi_refcount(struct nv_instruction *nvi)
    return rc;
 }
 
+int
+nvcg_replace_value(struct nv_pc *pc, struct nv_value *old_val,
+                   struct nv_value *new_val)
+{
+   int i, n;
+
+   if (old_val == new_val)
+      return old_val->refc;
+
+   for (i = 0, n = 0; i < pc->num_refs; ++i) {
+      if (pc->refs[i]->value == old_val) {
+         ++n;
+         nv_reference(pc, &pc->refs[i], new_val);
+      }
+   }
+   return n;
+}
+
 static void
 nv_pc_free_refs(struct nv_pc *pc)
 {
-- 
cgit v1.2.3