Mesa (master): nir: add missing local_group_size intrinsic

[Rob Clark]

Module: Mesa
Branch: master
Commit: ea0bbe82019458f3c0482a2d13614fdd06041ee3
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=ea0bbe82019458f3c0482a2d13614fdd06041ee3

Author: Rob Clark <robdclark at gmail.com>
Date:   Mon Dec 25 15:18:00 2017 -0500

nir: add missing local_group_size intrinsic

For GL_ARB_compute_variable_group_size

Reported-by: Karol Herbst <karolherbst at gmail.com>
Signed-off-by: Rob Clark <robdclark at gmail.com>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Jason Ekstrand <jason at jlekstrand.net>

---

 src/compiler/nir/nir.c            | 4 ++++
 src/compiler/nir/nir_intrinsics.h | 1 +
 2 files changed, 5 insertions(+)

diff --git a/src/compiler/nir/nir.c b/src/compiler/nir/nir.c
index 688f2b1ae3..692d97bf9a 100644
--- a/src/compiler/nir/nir.c
+++ b/src/compiler/nir/nir.c
@@ -1969,6 +1969,8 @@ nir_intrinsic_from_system_value(gl_system_value val)
       return nir_intrinsic_load_subgroup_le_mask;
    case SYSTEM_VALUE_SUBGROUP_LT_MASK:
       return nir_intrinsic_load_subgroup_lt_mask;
+   case SYSTEM_VALUE_LOCAL_GROUP_SIZE:
+      return nir_intrinsic_load_local_group_size;
    default:
       unreachable("system value does not directly correspond to intrinsic");
    }
@@ -2038,6 +2040,8 @@ nir_system_value_from_intrinsic(nir_intrinsic_op intrin)
       return SYSTEM_VALUE_SUBGROUP_LE_MASK;
    case nir_intrinsic_load_subgroup_lt_mask:
       return SYSTEM_VALUE_SUBGROUP_LT_MASK;
+   case nir_intrinsic_load_local_group_size:
+      return SYSTEM_VALUE_LOCAL_GROUP_SIZE;
    default:
       unreachable("intrinsic doesn't produce a system value");
    }
diff --git a/src/compiler/nir/nir_intrinsics.h b/src/compiler/nir/nir_intrinsics.h
index ccf8e06336..ede2927787 100644
--- a/src/compiler/nir/nir_intrinsics.h
+++ b/src/compiler/nir/nir_intrinsics.h
@@ -363,6 +363,7 @@ SYSTEM_VALUE(subgroup_gt_mask, 0, 0, xx, xx, xx)
 SYSTEM_VALUE(subgroup_le_mask, 0, 0, xx, xx, xx)
 SYSTEM_VALUE(subgroup_lt_mask, 0, 0, xx, xx, xx)
 SYSTEM_VALUE(subgroup_id, 1, 0, xx, xx, xx)
+SYSTEM_VALUE(local_group_size, 3, 0, xx, xx, xx)
 
 /* Blend constant color values.  Float values are clamped. */
 SYSTEM_VALUE(blend_const_color_r_float, 1, 0, xx, xx, xx)