Conor McCarthy : vkd3d-shader/spirv: Bitcast if necessary in the spirv_compiler_emit_mov() general implementation.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: 2037daae3221de0713c0c049d3c6fbbe53216340
URL:    https://gitlab.winehq.org/wine/vkd3d/-/commit/2037daae3221de0713c0c049d3c6fb...

Author: Conor McCarthy <cmccarthy(a)codeweavers.com>
Date:   Tue Dec  5 14:36:22 2023 +1000

vkd3d-shader/spirv: Bitcast if necessary in the spirv_compiler_emit_mov() general implementation.

In SM 6, this is needed when storing an asfloat() or asuint() result in
an indexable temp, because dxc performs the bitcast by casting the
destination pointer.

---

 libs/vkd3d-shader/spirv.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index 4624def6..a60246fd 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -6926,6 +6926,11 @@ static void spirv_compiler_emit_mov(struct spirv_compiler *compiler,
 
 general_implementation:
     val_id = spirv_compiler_emit_load_src(compiler, src, dst->write_mask);
+    if (dst->reg.data_type != src->reg.data_type)
+    {
+        val_id = vkd3d_spirv_build_op_bitcast(builder, vkd3d_spirv_get_type_id_for_data_type(builder,
+                dst->reg.data_type, vkd3d_write_mask_component_count(dst->write_mask)), val_id);
+    }
     spirv_compiler_emit_store_dst(compiler, dst, val_id);
 }