From 878740bedf418e5bf42ed6d350c938d29abaaf25 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Thu, 6 May 2010 14:52:16 -0700
Subject: ir_to_mesa: Add codegen for rsq expression operation.

---
 mesa_codegen.brg | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'mesa_codegen.brg')

diff --git a/mesa_codegen.brg b/mesa_codegen.brg
index ed9afdc57c..e8d499fd74 100644
--- a/mesa_codegen.brg
+++ b/mesa_codegen.brg
@@ -60,6 +60,7 @@
 %term dp3_vec4_vec4
 %term dp2_vec4_vec4
 %term sqrt_vec4
+%term rsq_vec4
 %term swizzle_vec4
 
 # Each tree will produce stmt.  Currently, the only production for
@@ -209,6 +210,13 @@ vec4: sqrt_vec4(vec4) 1
 			    tree->src_reg);
 }
 
+vec4: rsq_vec4(vec4) 1
+{
+	ir_to_mesa_emit_scalar_op1(tree, OPCODE_RSQ,
+				   tree->dst_reg,
+				   tree->left->src_reg);
+}
+
 vec4: exp_vec4(vec4) 1
 {
 	ir_to_mesa_emit_scalar_op1(tree, OPCODE_EXP,
-- 
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