Conor McCarthy : vkd3d-shader/spirv: Avoid invalid bool-to-bool conversion in spirv_compiler_emit_movc().

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: fb588b8d1a2fddbf79b73677638924c645a1f1ee
URL:    https://gitlab.winehq.org/wine/vkd3d/-/commit/fb588b8d1a2fddbf79b73677638924...

Author: Conor McCarthy 
Date:   Tue Jun  6 22:46:04 2023 +1000

vkd3d-shader/spirv: Avoid invalid bool-to-bool conversion in spirv_compiler_emit_movc().

Shaders parsed from DXIL contain a bool condition register, so calling
spirv_compiler_emit_int_to_bool() results in an invalid bool/uint
comparison.

---

libs/vkd3d-shader/spirv.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index fc65fc27..05066720 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -6878,8 +6878,9 @@ static void spirv_compiler_emit_movc(struct spirv_compiler *compiler,
     component_count = vkd3d_write_mask_component_count(dst->write_mask);
     type_id = spirv_compiler_get_type_id_for_dst(compiler, dst);

-    condition_id = spirv_compiler_emit_int_to_bool(compiler,
-            VKD3D_SHADER_CONDITIONAL_OP_NZ, component_count, condition_id);
+    if (src[0].reg.data_type != VKD3D_DATA_BOOL)
+        condition_id = spirv_compiler_emit_int_to_bool(compiler,
+                VKD3D_SHADER_CONDITIONAL_OP_NZ, component_count, condition_id);
     val_id = vkd3d_spirv_build_op_select(builder, type_id, condition_id, src1_id, src2_id);

spirv_compiler_emit_store_dst(compiler, dst, val_id);