Mesa (master): i965/vec4: Implement nir_op_uadd_sat

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Module: Mesa
Branch: master
Commit: 455ec7327da4a806d87d6dc8cee39a6c2853a8a3
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=455ec7327da4a806d87d6dc8cee39a6c2853a8a3

Author: Jason Ekstrand <jason.ekstrand at intel.com>
Date:   Mon Oct  8 17:33:10 2018 -0500

i965/vec4: Implement nir_op_uadd_sat

Reviewed-by: Ian Romanick ian.d.romanick at intel.com

---

 src/intel/compiler/brw_vec4_nir.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/intel/compiler/brw_vec4_nir.cpp b/src/intel/compiler/brw_vec4_nir.cpp
index 4f97e96afa..26dc3110e2 100644
--- a/src/intel/compiler/brw_vec4_nir.cpp
+++ b/src/intel/compiler/brw_vec4_nir.cpp
@@ -1085,6 +1085,12 @@ vec4_visitor::nir_emit_alu(nir_alu_instr *instr)
       inst->saturate = instr->dest.saturate;
       break;
 
+   case nir_op_uadd_sat:
+      assert(nir_dest_bit_size(instr->dest.dest) < 64);
+      inst = emit(ADD(dst, op[0], op[1]));
+      inst->saturate = true;
+      break;
+
    case nir_op_fmul:
       inst = emit(MUL(dst, op[0], op[1]));
       inst->saturate = instr->dest.saturate;