[Mesa-dev] [PATCH 24/29] nir: add support for (un)pack_double_2x32

[Samuel Iglesias Gonsálvez]

From: Connor Abbott <connor.w.abbott at intel.com>

---
 src/compiler/nir/glsl_to_nir.cpp |  6 ++++++
 src/compiler/nir/nir_opcodes.py  | 28 ++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/src/compiler/nir/glsl_to_nir.cpp b/src/compiler/nir/glsl_to_nir.cpp
index d087a77..84a1747 100644
--- a/src/compiler/nir/glsl_to_nir.cpp
+++ b/src/compiler/nir/glsl_to_nir.cpp
@@ -1416,6 +1416,12 @@ nir_visitor::visit(ir_expression *ir)
    case ir_unop_unpack_half_2x16:
       result = nir_unpack_half_2x16(&b, srcs[0]);
       break;
+   case ir_unop_pack_double_2x32:
+      result = nir_pack_double_2x32(&b, srcs[0]);
+      break;
+   case ir_unop_unpack_double_2x32:
+      result = nir_unpack_double_2x32(&b, srcs[0]);
+      break;
    case ir_unop_bitfield_reverse:
       result = nir_bitfield_reverse(&b, srcs[0]);
       break;
diff --git a/src/compiler/nir/nir_opcodes.py b/src/compiler/nir/nir_opcodes.py
index cf6ce83..12b668f 100644
--- a/src/compiler/nir/nir_opcodes.py
+++ b/src/compiler/nir/nir_opcodes.py
@@ -260,6 +260,34 @@ dst.x = (src0.x <<  0) |
         (src0.w << 24);
 """)
 
+unop_horiz("pack_double_2x32", 1, tfloat64, 2, tuint32, """
+union {
+    double d;
+    struct {
+        uint32_t i1;
+        uint32_t i2;
+    };
+} di;
+
+di.i1 = src0.x;
+di.i2 = src0.y;
+dst.x = di.d;
+""")
+
+unop_horiz("unpack_double_2x32", 2, tuint32, 1, tfloat64, """
+union {
+    double d;
+    struct {
+        uint32_t i1;
+        uint32_t i2;
+    };
+} di;
+
+di.d = src0.x;
+dst.x = di.i1;
+dst.y = di.i2;
+""")
+
 # Lowered floating point unpacking operations.
 
 
-- 
2.5.0