[PATCH vkd3d 1/3] vkd3d-shader/hlsl: Write the else block only if it isn't empty.

[Giovanni Mascellani]

Signed-off-by: Giovanni Mascellani 
---
 libs/vkd3d-shader/hlsl_sm4.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/libs/vkd3d-shader/hlsl_sm4.c b/libs/vkd3d-shader/hlsl_sm4.c
index e597425a..c56a74d4 100644
--- a/libs/vkd3d-shader/hlsl_sm4.c
+++ b/libs/vkd3d-shader/hlsl_sm4.c
@@ -1446,11 +1446,14 @@ static void write_sm4_if(struct hlsl_ctx *ctx, struct vkd3d_bytecode_buffer *buf

write_sm4_block(ctx, buffer, &iff->then_instrs);

-    instr.opcode = VKD3D_SM4_OP_ELSE;
-    instr.src_count = 0;
-    write_sm4_instruction(buffer, &instr);
+    if (!list_empty(&iff->else_instrs.instrs))
+    {
+        instr.opcode = VKD3D_SM4_OP_ELSE;
+        instr.src_count = 0;
+        write_sm4_instruction(buffer, &instr);

-    write_sm4_block(ctx, buffer, &iff->else_instrs);
+        write_sm4_block(ctx, buffer, &iff->else_instrs);
+    }

instr.opcode = VKD3D_SM4_OP_ENDIF;
     write_sm4_instruction(buffer, &instr);