1 files changed, 64 insertions, 0 deletions

diff --git a/src/intel/compiler/brw_fs_nir.cpp b/src/intel/compiler/brw_fs_nir.cpp
index 747529e72d81..4eaebc945c45 100644
--- a/src/intel/compiler/brw_fs_nir.cpp
+++ b/src/intel/compiler/brw_fs_nir.cpp
@@ -26,6 +26,8 @@
 #include "brw_nir.h"
 #include "util/u_math.h"
 #include "util/bitscan.h"
+#include "compiler/nir/nir_search.h"
+#include "codegen_builder.h"
 
 using namespace brw;
 
@@ -808,12 +810,74 @@ fs_visitor::try_emit_b2fi_of_inot(const fs_builder &bld,
    return true;
 }
 
+static bool
+front_face(nir_alu_instr *instr, unsigned src, unsigned, const uint8_t *)
+{
+   if (!instr->src[src].src.is_ssa ||
+       instr->src[src].src.ssa->parent_instr->type != nir_instr_type_intrinsic)
+      return false;
+
+   nir_intrinsic_instr *const src0 =
+      nir_instr_as_intrinsic(instr->src[src].src.ssa->parent_instr);
+
+   return src0->intrinsic == nir_intrinsic_load_front_face;
+}
+
+static bool
+no_src_mod(nir_alu_instr *instr, unsigned src, unsigned, const uint8_t *)
+{
+   return !instr->src[src].abs && !instr->src[src].negate;
+}
+
+static bool
+abs_src_mod(nir_alu_instr *instr, unsigned src, unsigned, const uint8_t *)
+{
+   return instr->src[src].abs && !instr->src[src].negate;
+}
+
+static bool
+neg_or_abs_src_mod(nir_alu_instr *instr, unsigned src, unsigned, const uint8_t *)
+{
+   return instr->src[src].abs || instr->src[src].negate;
+}
+
+static bool
+neg_abs_src_mod(nir_alu_instr *instr, unsigned src, unsigned, const uint8_t *)
+{
+   return instr->src[src].abs && instr->src[src].negate;
+}
+
+static bool
+neg_src_mod(nir_alu_instr *instr, unsigned src, unsigned, const uint8_t *)
+{
+   return instr->src[src].negate;
+}
+
+#include "gen8_md.h"
+
 void
 fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr)
 {
    struct brw_wm_prog_key *fs_key = (struct brw_wm_prog_key *) this->key;
    fs_inst *inst;
 
+   switch (devinfo->gen) {
+   case 4:
+   case 5:
+   case 6:
+   case 7:
+      break;
+
+   case 8:
+   case 9:
+      if (nir_emit_alu_gen8(this, devinfo, bld, instr))
+         return;
+      break;
+
+   default:
+      break;
+   }
+
    fs_reg op[4];
    fs_reg result = prepare_alu_destination_and_sources(bld, instr, op, true);