From: Antia Puentes <apuentes@igalia.com>
Date: Tue, 16 Jun 2015 21:04:32 +0000 (+0200)
Subject: i965/nir/vec4: Implement int<->float format conversion ops
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4f39b547da4f9949d1b1f9f0df07d08951f0358d;p=mesa.git

i965/nir/vec4: Implement int<->float format conversion ops

Adds NIR ALU operations:
   * nir_op_f2i
   * nir_op_f2u
   * nir_op_i2f
   * nir_op_u2f

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
---

diff --git a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
index 2829bbc111c..e1ada3bc855 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
@@ -682,6 +682,17 @@ vec4_visitor::nir_emit_alu(nir_alu_instr *instr)
    case nir_op_vec4:
       unreachable("not reached: should be handled by lower_vec_to_movs()");
 
+   case nir_op_i2f:
+   case nir_op_u2f:
+      inst = emit(MOV(dst, op[0]));
+      inst->saturate = instr->dest.saturate;
+      break;
+
+   case nir_op_f2i:
+   case nir_op_f2u:
+      inst = emit(MOV(dst, op[0]));
+      break;
+
    default:
       unreachable("Unimplemented ALU operation");
    }