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authorLiam <byteslice@airmail.cc>2023-06-10 17:40:58 +0200
committerLiam <byteslice@airmail.cc>2023-06-10 18:30:39 +0200
commit2bb7ea436dc74f812a8092201dc597ed58ff3c7a (patch)
tree27b6426a646112e163ae39b733ce60ca6d6aa748 /src/shader_recompiler
parentMerge pull request #10685 from liamwhite/serialization-is-hard (diff)
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Diffstat (limited to 'src/shader_recompiler')
-rw-r--r--src/shader_recompiler/CMakeLists.txt1
-rw-r--r--src/shader_recompiler/frontend/maxwell/translate_program.cpp3
-rw-r--r--src/shader_recompiler/host_translate_info.h2
-rw-r--r--src/shader_recompiler/ir_opt/conditional_barrier_pass.cpp44
-rw-r--r--src/shader_recompiler/ir_opt/passes.h1
5 files changed, 51 insertions, 0 deletions
diff --git a/src/shader_recompiler/CMakeLists.txt b/src/shader_recompiler/CMakeLists.txt
index 525b2363c..2baa64322 100644
--- a/src/shader_recompiler/CMakeLists.txt
+++ b/src/shader_recompiler/CMakeLists.txt
@@ -216,6 +216,7 @@ add_library(shader_recompiler STATIC
frontend/maxwell/translate_program.h
host_translate_info.h
ir_opt/collect_shader_info_pass.cpp
+ ir_opt/conditional_barrier_pass.cpp
ir_opt/constant_propagation_pass.cpp
ir_opt/dead_code_elimination_pass.cpp
ir_opt/dual_vertex_pass.cpp
diff --git a/src/shader_recompiler/frontend/maxwell/translate_program.cpp b/src/shader_recompiler/frontend/maxwell/translate_program.cpp
index 17a6d4888..529382355 100644
--- a/src/shader_recompiler/frontend/maxwell/translate_program.cpp
+++ b/src/shader_recompiler/frontend/maxwell/translate_program.cpp
@@ -286,6 +286,9 @@ IR::Program TranslateProgram(ObjectPool<IR::Inst>& inst_pool, ObjectPool<IR::Blo
if (!host_info.support_int64) {
Optimization::LowerInt64ToInt32(program);
}
+ if (!host_info.support_conditional_barrier) {
+ Optimization::ConditionalBarrierPass(program);
+ }
Optimization::SsaRewritePass(program);
Optimization::ConstantPropagationPass(env, program);
diff --git a/src/shader_recompiler/host_translate_info.h b/src/shader_recompiler/host_translate_info.h
index 2aaa6c5ea..d4e4f4d28 100644
--- a/src/shader_recompiler/host_translate_info.h
+++ b/src/shader_recompiler/host_translate_info.h
@@ -17,6 +17,8 @@ struct HostTranslateInfo {
bool support_viewport_index_layer{}; ///< True when the device supports gl_Layer in VS
bool support_geometry_shader_passthrough{}; ///< True when the device supports geometry
///< passthrough shaders
+ bool support_conditional_barrier{}; ///< True when the device supports barriers in conditional
+ ///< control flow
};
} // namespace Shader
diff --git a/src/shader_recompiler/ir_opt/conditional_barrier_pass.cpp b/src/shader_recompiler/ir_opt/conditional_barrier_pass.cpp
new file mode 100644
index 000000000..c3ed27f4f
--- /dev/null
+++ b/src/shader_recompiler/ir_opt/conditional_barrier_pass.cpp
@@ -0,0 +1,44 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "shader_recompiler/frontend/ir/program.h"
+#include "shader_recompiler/ir_opt/passes.h"
+
+namespace Shader::Optimization {
+
+void ConditionalBarrierPass(IR::Program& program) {
+ s32 conditional_control_flow_count{0};
+ s32 conditional_return_count{0};
+ for (IR::AbstractSyntaxNode& node : program.syntax_list) {
+ switch (node.type) {
+ case IR::AbstractSyntaxNode::Type::If:
+ case IR::AbstractSyntaxNode::Type::Loop:
+ conditional_control_flow_count++;
+ break;
+ case IR::AbstractSyntaxNode::Type::EndIf:
+ case IR::AbstractSyntaxNode::Type::Repeat:
+ conditional_control_flow_count--;
+ break;
+ case IR::AbstractSyntaxNode::Type::Unreachable:
+ case IR::AbstractSyntaxNode::Type::Return:
+ if (conditional_control_flow_count > 0) {
+ conditional_return_count++;
+ }
+ break;
+ case IR::AbstractSyntaxNode::Type::Block:
+ for (IR::Inst& inst : node.data.block->Instructions()) {
+ if ((conditional_control_flow_count > 0 || conditional_return_count > 0) &&
+ inst.GetOpcode() == IR::Opcode::Barrier) {
+ LOG_WARNING(Shader, "Barrier within conditional control flow");
+ inst.ReplaceOpcode(IR::Opcode::Identity);
+ }
+ }
+ break;
+ default:
+ break;
+ }
+ }
+ ASSERT(conditional_control_flow_count == 0);
+}
+
+} // namespace Shader::Optimization
diff --git a/src/shader_recompiler/ir_opt/passes.h b/src/shader_recompiler/ir_opt/passes.h
index 1f8f2ba95..a677bfc65 100644
--- a/src/shader_recompiler/ir_opt/passes.h
+++ b/src/shader_recompiler/ir_opt/passes.h
@@ -13,6 +13,7 @@ struct HostTranslateInfo;
namespace Shader::Optimization {
void CollectShaderInfoPass(Environment& env, IR::Program& program);
+void ConditionalBarrierPass(IR::Program& program);
void ConstantPropagationPass(Environment& env, IR::Program& program);
void DeadCodeEliminationPass(IR::Program& program);
void GlobalMemoryToStorageBufferPass(IR::Program& program);