From 0d1d755086f95fb20975fe2a4fd6c9c9de43789b Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Wed, 30 Jan 2019 02:20:05 -0300
Subject: [PATCH] shader/track: Search inside of conditional nodes

Some games search conditionally use global memory instructions. This
allows the heuristic to search inside conditional nodes for the source
constant buffer.
---
 src/video_core/shader/track.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/video_core/shader/track.cpp b/src/video_core/shader/track.cpp
index 343c129c70..be46353426 100644
--- a/src/video_core/shader/track.cpp
+++ b/src/video_core/shader/track.cpp
@@ -19,6 +19,13 @@ std::pair<Node, s64> FindOperation(const NodeBlock& code, s64 cursor,
             if (operation->GetCode() == operation_code)
                 return {node, cursor};
         }
+        if (const auto conditional = std::get_if<ConditionalNode>(node)) {
+            const auto& code = conditional->GetCode();
+            const auto [found, internal_cursor] =
+                FindOperation(code, static_cast<s64>(code.size() - 1), operation_code);
+            if (found)
+                return {found, cursor};
+        }
     }
     return {};
 }
@@ -50,6 +57,10 @@ Node ShaderIR::TrackCbuf(Node tracked, const NodeBlock& code, s64 cursor) {
         }
         return nullptr;
     }
+    if (const auto conditional = std::get_if<ConditionalNode>(tracked)) {
+        const auto& code = conditional->GetCode();
+        return TrackCbuf(tracked, code, static_cast<s64>(code.size()));
+    }
     return nullptr;
 }