Giovanni Mascellani : vkd3d-shader/ir: Validate IFC instructions.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: 5cb17cfd1c957a46fbe1d1053d2bd3f5502eb130
URL:    https://gitlab.winehq.org/wine/vkd3d/-/commit/5cb17cfd1c957a46fbe1d1053d2bd3...

Author: Giovanni Mascellani <gmascellani(a)codeweavers.com>
Date:   Thu Nov 16 22:32:13 2023 +0100

vkd3d-shader/ir: Validate IFC instructions.

---

 libs/vkd3d-shader/ir.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libs/vkd3d-shader/ir.c b/libs/vkd3d-shader/ir.c
index b8cb6a41..5c88946b 100644
--- a/libs/vkd3d-shader/ir.c
+++ b/libs/vkd3d-shader/ir.c
@@ -1696,6 +1696,14 @@ static void vsir_validate_instruction(struct validation_context *ctx)
             ctx->blocks[ctx->depth++] = instruction->handler_idx;
             break;
 
+        case VKD3DSIH_IFC:
+            vsir_validate_dst_count(ctx, instruction, 0);
+            vsir_validate_src_count(ctx, instruction, 2);
+            if (!vkd3d_array_reserve((void **)&ctx->blocks, &ctx->blocks_capacity, ctx->depth + 1, sizeof(*ctx->blocks)))
+                return;
+            ctx->blocks[ctx->depth++] = VKD3DSIH_IF;
+            break;
+
         case VKD3DSIH_ELSE:
             vsir_validate_dst_count(ctx, instruction, 0);
             vsir_validate_src_count(ctx, instruction, 0);