From 77cfe4f027bd91e4200d6cda5c985f94de378684 Mon Sep 17 00:00:00 2001
From: Subv <subv2112@gmail.com>
Date: Wed, 4 Jul 2018 15:29:51 -0500
Subject: [PATCH] GPU: Stub the shader SYNC and DEPBAR instructions.

It is unknown at this moment if we actually need to do something with these instructions or if the GLSL compiler takes care of that for us.
---
 src/video_core/engines/shader_bytecode.h                | 5 +++++
 src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h
index c1226a649..ec9050d3d 100644
--- a/src/video_core/engines/shader_bytecode.h
+++ b/src/video_core/engines/shader_bytecode.h
@@ -438,6 +438,8 @@ public:
     enum class Id {
         KIL,
         SSY,
+        SYNC,
+        DEPBAR,
         BFE_C,
         BFE_R,
         BFE_IMM,
@@ -534,6 +536,7 @@ public:
         Shift,
         Ffma,
         Flow,
+        Synch,
         Memory,
         FloatSet,
         FloatSetPredicate,
@@ -638,6 +641,8 @@ private:
             INST("111000110011----", Id::KIL, Type::Flow, "KIL"),
             INST("111000101001----", Id::SSY, Type::Flow, "SSY"),
             INST("111000100100----", Id::BRA, Type::Flow, "BRA"),
+            INST("1111000011110---", Id::DEPBAR, Type::Synch, "DEPBAR"),
+            INST("1111000011111---", Id::SYNC, Type::Synch, "SYNC"),
             INST("1110111111011---", Id::LD_A, Type::Memory, "LD_A"),
             INST("1110111110010---", Id::LD_C, Type::Memory, "LD_C"),
             INST("1110111111110---", Id::ST_A, Type::Memory, "ST_A"),
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index ec9956edb..d5259e0b1 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -1599,6 +1599,13 @@ private:
                 // can ignore this when generating GLSL code.
                 break;
             }
+            case OpCode::Id::DEPBAR:
+            case OpCode::Id::SYNC: {
+                // TODO(Subv): Find out if we actually have to care about these instructions or if
+                // the GLSL compiler takes care of that for us.
+                LOG_WARNING(HW_GPU, "DEPBAR/SYNC instruction is stubbed");
+                break;
+            }
             default: {
                 LOG_CRITICAL(HW_GPU, "Unhandled instruction: {}", opcode->GetName());
                 UNREACHABLE();