[Mesa-dev] [PATCH v2 30/78] i965/nir/vec4: Implement int<->float format conversion ops

Eduardo Lima Mitev elima at igalia.com
Thu Jul 23 03:17:10 PDT 2015


From: Antia Puentes <apuentes at igalia.com>

Adds NIR ALU operations:
   * nir_op_f2i
   * nir_op_f2u
   * nir_op_i2f
   * nir_op_u2f
---
 src/mesa/drivers/dri/i965/brw_vec4_nir.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
index e1c851b..533d2d3 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
@@ -685,6 +685,17 @@ 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");
    }
-- 
2.1.4



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