[Mesa-dev] [PATCH 3/9] i965: Support for 8-bit base types in helper functions

[Jose Maria Casanova Crespo]

Reviewed-by: Jason Ekstrand <ja...@jlekstrand.net>
---
 src/intel/compiler/brw_fs_nir.cpp | 11 ++++++++++-
 src/intel/compiler/brw_nir.c      |  4 ++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/intel/compiler/brw_fs_nir.cpp 
b/src/intel/compiler/brw_fs_nir.cpp
index 02ac92e62f1..83ed9575f80 100644
--- a/src/intel/compiler/brw_fs_nir.cpp
+++ b/src/intel/compiler/brw_fs_nir.cpp
@@ -303,10 +303,13 @@ brw_reg_type_from_bit_size(const unsigned bit_size,
       default:
          unreachable("Invalid bit size");
       }
+   case BRW_REGISTER_TYPE_B:
    case BRW_REGISTER_TYPE_W:
    case BRW_REGISTER_TYPE_D:
    case BRW_REGISTER_TYPE_Q:
       switch(bit_size) {
+      case 8:
+         return BRW_REGISTER_TYPE_B;
       case 16:
          return BRW_REGISTER_TYPE_W;
       case 32:
@@ -316,10 +319,13 @@ brw_reg_type_from_bit_size(const unsigned bit_size,
       default:
          unreachable("Invalid bit size");
       }
+   case BRW_REGISTER_TYPE_UB:
    case BRW_REGISTER_TYPE_UW:
    case BRW_REGISTER_TYPE_UD:
    case BRW_REGISTER_TYPE_UQ:
       switch(bit_size) {
+      case 8:
+         return BRW_REGISTER_TYPE_UB;
       case 16:
          return BRW_REGISTER_TYPE_UW;
       case 32:
@@ -1666,7 +1672,10 @@ fs_visitor::get_nir_dest(const nir_dest &dest)
 {
    if (dest.is_ssa) {
       const brw_reg_type reg_type =
-         brw_reg_type_from_bit_size(dest.ssa.bit_size, BRW_REGISTER_TYPE_F);
+         brw_reg_type_from_bit_size(dest.ssa.bit_size,
+                                    dest.ssa.bit_size == 8 ?
+                                    BRW_REGISTER_TYPE_D :
+                                    BRW_REGISTER_TYPE_F);
       nir_ssa_values[dest.ssa.index] =
          bld.vgrf(reg_type, dest.ssa.num_components);
       return nir_ssa_values[dest.ssa.index];
diff --git a/src/intel/compiler/brw_nir.c b/src/intel/compiler/brw_nir.c
index 74b39ad80a2..5990427b731 100644
--- a/src/intel/compiler/brw_nir.c
+++ b/src/intel/compiler/brw_nir.c
@@ -887,6 +887,10 @@ brw_type_for_nir_type(const struct gen_device_info 
*devinfo, nir_alu_type type)
       return BRW_REGISTER_TYPE_W;
    case nir_type_uint16:
       return BRW_REGISTER_TYPE_UW;
+   case nir_type_int8:
+      return BRW_REGISTER_TYPE_B;
+   case nir_type_uint8:
+      return BRW_REGISTER_TYPE_UB;
    default:
       unreachable("unknown type");
    }
-- 
2.17.1

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