From: Antia Puentes <apuentes@igalia.com>
Date: Wed, 17 Jun 2015 08:05:29 +0000 (+0200)
Subject: i965/nir/vec4: Implement conditional select
X-Git-Tag: upstream/17.1.0~17137
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=96106e2a9f214d98fc2e99c65398f95d41a3b879;p=platform%2Fupstream%2Fmesa.git

i965/nir/vec4: Implement conditional select

Adds NIR ALU operations:
   * nir_op_bcsel

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 1ee8597..529f7f7 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
@@ -1207,6 +1207,12 @@ vec4_visitor::nir_emit_alu(nir_alu_instr *instr)
       inst->saturate = instr->dest.saturate;
       break;
 
+   case nir_op_bcsel:
+      emit(CMP(dst_null_d(), op[0], src_reg(0), BRW_CONDITIONAL_NZ));
+      inst = emit(BRW_OPCODE_SEL, dst, op[1], op[2]);
+      inst->predicate = BRW_PREDICATE_NORMAL;
+      break;
+
    default:
       unreachable("Unimplemented ALU operation");
    }