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-rw-r--r--src/shader_recompiler/frontend/ir/basic_block.h14
-rw-r--r--src/shader_recompiler/frontend/ir/microinstruction.cpp11
-rw-r--r--src/shader_recompiler/frontend/ir/value.h3
3 files changed, 28 insertions, 0 deletions
diff --git a/src/shader_recompiler/frontend/ir/basic_block.h b/src/shader_recompiler/frontend/ir/basic_block.h
index 7e134b4c7..9ce1ed07e 100644
--- a/src/shader_recompiler/frontend/ir/basic_block.h
+++ b/src/shader_recompiler/frontend/ir/basic_block.h
@@ -152,6 +152,17 @@ public:
return instructions.crend();
}
+ // Set the order of the block, it can be set pre order, the user decides
+ void SetOrder(u32 new_order) {
+ order = new_order;
+ }
+
+ // Get the order of the block.
+ // The higher, the closer is the block to the end.
+ [[nodiscard]] u32 GetOrder() const {
+ return order;
+ }
+
private:
/// Memory pool for instruction list
ObjectPool<Inst>* inst_pool;
@@ -171,6 +182,9 @@ private:
/// Intrusively stored host definition of this block.
u32 definition{};
+
+ /// Order of the block.
+ u32 order{};
};
using BlockList = std::vector<Block*>;
diff --git a/src/shader_recompiler/frontend/ir/microinstruction.cpp b/src/shader_recompiler/frontend/ir/microinstruction.cpp
index 3dfa5a880..e563b4022 100644
--- a/src/shader_recompiler/frontend/ir/microinstruction.cpp
+++ b/src/shader_recompiler/frontend/ir/microinstruction.cpp
@@ -6,6 +6,7 @@
#include <memory>
#include "shader_recompiler/exception.h"
+#include "shader_recompiler/frontend/ir/basic_block.h"
#include "shader_recompiler/frontend/ir/type.h"
#include "shader_recompiler/frontend/ir/value.h"
@@ -291,6 +292,16 @@ void Inst::AddPhiOperand(Block* predecessor, const Value& value) {
phi_args.emplace_back(predecessor, value);
}
+void Inst::OrderPhiArgs() {
+ if (op != Opcode::Phi) {
+ throw LogicError("{} is not a Phi instruction", op);
+ }
+ std::sort(phi_args.begin(), phi_args.end(),
+ [](const std::pair<Block*, Value>& a, const std::pair<Block*, Value>& b) {
+ return a.first->GetOrder() < b.first->GetOrder();
+ });
+}
+
void Inst::Invalidate() {
ClearArgs();
ReplaceOpcode(Opcode::Void);
diff --git a/src/shader_recompiler/frontend/ir/value.h b/src/shader_recompiler/frontend/ir/value.h
index 334bb47aa..6c9ef6bdd 100644
--- a/src/shader_recompiler/frontend/ir/value.h
+++ b/src/shader_recompiler/frontend/ir/value.h
@@ -182,6 +182,9 @@ public:
/// Add phi operand to a phi instruction.
void AddPhiOperand(Block* predecessor, const Value& value);
+ /// Orders the Phi arguments from farthest away to nearest.
+ void OrderPhiArgs();
+
void Invalidate();
void ClearArgs();