From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Fri, 19 Sep 2008 23:55:54 +0000 (-0600)
Subject: cell: use different opcodes for spe_move() depending on even/odd address
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=99cdfc997b9da10fee57cf1048a55354e1ee4244;p=mesa.git

cell: use different opcodes for spe_move() depending on even/odd address
---

diff --git a/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.c b/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.c
index 1c3e21b4c03..491141f1908 100644
--- a/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.c
+++ b/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.c
@@ -639,7 +639,13 @@ spe_complement(struct spe_function *p, unsigned rT, unsigned rA)
 void
 spe_move(struct spe_function *p, unsigned rT, unsigned rA)
 {
-   spe_ori(p, rT, rA, 0);
+   /* Use different instructions depending on the instruction address
+    * to take advantage of the dual pipelines.
+    */
+   if (p->num_inst & 1)
+      spe_shlqbyi(p, rT, rA, 0);  /* odd pipe */
+   else
+      spe_ori(p, rT, rA, 0);  /* even pipe */
 }