Mesa (master): r600g: optimize away CF ALU instructions even if type doesn' t match
Christian König
deathsimple at kemper.freedesktop.org
Thu Jan 13 18:41:20 UTC 2011
Module: Mesa
Branch: master
Commit: 236e99fe05a8d301f81ca4330bf4ded80cf501a2
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=236e99fe05a8d301f81ca4330bf4ded80cf501a2
Author: Christian König <deathsimple at vodafone.de>
Date: Sat Dec 18 00:45:59 2010 +0100
r600g: optimize away CF ALU instructions even if type doesn't match
---
src/gallium/drivers/r600/r600_asm.c | 19 ++++++++++++++++---
1 files changed, 16 insertions(+), 3 deletions(-)
diff --git a/src/gallium/drivers/r600/r600_asm.c b/src/gallium/drivers/r600/r600_asm.c
index 57acb87..53122e5 100644
--- a/src/gallium/drivers/r600/r600_asm.c
+++ b/src/gallium/drivers/r600/r600_asm.c
@@ -539,16 +539,29 @@ int r600_bc_add_alu_type(struct r600_bc *bc, const struct r600_bc_alu *alu, int
memcpy(nalu, alu, sizeof(struct r600_bc_alu));
nalu->nliteral = 0;
+ if (bc->cf_last != NULL && bc->cf_last->inst != (type << 3)) {
+ /* check if we could add it anyway */
+ if (bc->cf_last->inst == (V_SQ_CF_ALU_WORD1_SQ_CF_INST_ALU << 3) &&
+ type == V_SQ_CF_ALU_WORD1_SQ_CF_INST_ALU_PUSH_BEFORE) {
+ LIST_FOR_EACH_ENTRY(lalu, &bc->cf_last->alu, list) {
+ if (lalu->predicate) {
+ bc->force_add_cf = 1;
+ break;
+ }
+ }
+ } else
+ bc->force_add_cf = 1;
+ }
+
/* cf can contains only alu or only vtx or only tex */
- if (bc->cf_last == NULL || bc->cf_last->inst != (type << 3) ||
- bc->force_add_cf) {
+ if (bc->cf_last == NULL || bc->force_add_cf) {
r = r600_bc_add_cf(bc);
if (r) {
free(nalu);
return r;
}
- bc->cf_last->inst = (type << 3);
}
+ bc->cf_last->inst = (type << 3);
/* Setup the kcache for this ALU instruction. This will start a new
* ALU clause if needed. */
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