From c892359d1bf228d3c119c953c20fff44f280a7c4 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Sun, 25 Jul 2021 21:34:17 -0300
Subject: shader: Add copy constructor to instructions
---
src/shader_recompiler/frontend/ir/basic_block.cpp | 5 +++++
src/shader_recompiler/frontend/ir/basic_block.h | 3 +++
src/shader_recompiler/frontend/ir/microinstruction.cpp | 11 +++++++++++
src/shader_recompiler/frontend/ir/value.h | 2 +-
4 files changed, 20 insertions(+), 1 deletion(-)
(limited to 'src')
diff --git a/src/shader_recompiler/frontend/ir/basic_block.cpp b/src/shader_recompiler/frontend/ir/basic_block.cpp
index 7c08b25ce2..974efa4a06 100644
--- a/src/shader_recompiler/frontend/ir/basic_block.cpp
+++ b/src/shader_recompiler/frontend/ir/basic_block.cpp
@@ -22,6 +22,11 @@ void Block::AppendNewInst(Opcode op, std::initializer_list<Value> args) {
PrependNewInst(end(), op, args);
}
+Block::iterator Block::PrependNewInst(iterator insertion_point, const Inst& base_inst) {
+ Inst* const inst{inst_pool->Create(base_inst)};
+ return instructions.insert(insertion_point, *inst);
+}
+
Block::iterator Block::PrependNewInst(iterator insertion_point, Opcode op,
std::initializer_list<Value> args, u32 flags) {
Inst* const inst{inst_pool->Create(op, flags)};
diff --git a/src/shader_recompiler/frontend/ir/basic_block.h b/src/shader_recompiler/frontend/ir/basic_block.h
index 9ce1ed07ed..fbfe98266a 100644
--- a/src/shader_recompiler/frontend/ir/basic_block.h
+++ b/src/shader_recompiler/frontend/ir/basic_block.h
@@ -40,6 +40,9 @@ public:
/// Appends a new instruction to the end of this basic block.
void AppendNewInst(Opcode op, std::initializer_list<Value> args);
+ /// Prepends a copy of an instruction to this basic block before the insertion point.
+ iterator PrependNewInst(iterator insertion_point, const Inst& base_inst);
+
/// Prepends a new instruction to this basic block before the insertion point.
iterator PrependNewInst(iterator insertion_point, Opcode op,
std::initializer_list<Value> args = {}, u32 flags = 0);
diff --git a/src/shader_recompiler/frontend/ir/microinstruction.cpp b/src/shader_recompiler/frontend/ir/microinstruction.cpp
index 30b470bdd3..97e2bf6af4 100644
--- a/src/shader_recompiler/frontend/ir/microinstruction.cpp
+++ b/src/shader_recompiler/frontend/ir/microinstruction.cpp
@@ -47,6 +47,17 @@ Inst::Inst(IR::Opcode op_, u32 flags_) noexcept : op{op_}, flags{flags_} {
}
}
+Inst::Inst(const Inst& base) : op{base.op}, flags{base.flags} {
+ if (base.op == Opcode::Phi) {
+ throw NotImplementedException("Copying phi node");
+ }
+ std::construct_at(&args);
+ const size_t num_args{base.NumArgs()};
+ for (size_t index = 0; index < num_args; ++index) {
+ SetArg(index, base.Arg(index));
+ }
+}
+
Inst::~Inst() {
if (op == Opcode::Phi) {
std::destroy_at(&phi_args);
diff --git a/src/shader_recompiler/frontend/ir/value.h b/src/shader_recompiler/frontend/ir/value.h
index 6c9ef6bdd6..9475798524 100644
--- a/src/shader_recompiler/frontend/ir/value.h
+++ b/src/shader_recompiler/frontend/ir/value.h
@@ -116,10 +116,10 @@ public:
class Inst : public boost::intrusive::list_base_hook<> {
public:
explicit Inst(IR::Opcode op_, u32 flags_) noexcept;
+ explicit Inst(const Inst& base);
~Inst();
Inst& operator=(const Inst&) = delete;
- Inst(const Inst&) = delete;
Inst& operator=(Inst&&) = delete;
Inst(Inst&&) = delete;
--
cgit v1.2.3-70-g09d2