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authorReinUsesLisp <reinuseslisp@airmail.cc>2021-04-05 01:00:34 +0200
committerameerj <52414509+ameerj@users.noreply.github.com>2021-07-23 03:51:26 +0200
commit9e6fe430bdc615ae5f7cc4fbc32d7e2baccd7ceb (patch)
tree3eb68f4872e39642f6f6c483765174ee77a793f1 /src
parentshader: Eliminate orphan blocks more efficiently (diff)
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Diffstat (limited to 'src')
-rw-r--r--src/shader_recompiler/frontend/maxwell/control_flow.cpp35
-rw-r--r--src/shader_recompiler/frontend/maxwell/control_flow.h18
-rw-r--r--src/shader_recompiler/frontend/maxwell/program.cpp2
3 files changed, 38 insertions, 17 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/control_flow.cpp b/src/shader_recompiler/frontend/maxwell/control_flow.cpp
index ac8707847..eb0f7c8d1 100644
--- a/src/shader_recompiler/frontend/maxwell/control_flow.cpp
+++ b/src/shader_recompiler/frontend/maxwell/control_flow.cpp
@@ -45,19 +45,29 @@ void Split(Block* old_block, Block* new_block, Location pc) {
.begin{pc},
.end{old_block->end},
.end_class{old_block->end_class},
- .stack{old_block->stack},
.cond{old_block->cond},
+ .stack{old_block->stack},
.branch_true{old_block->branch_true},
.branch_false{old_block->branch_false},
+ .function_call{old_block->function_call},
+ .return_block{old_block->return_block},
+ .branch_reg{old_block->branch_reg},
+ .branch_offset{old_block->branch_offset},
+ .indirect_branches{std::move(old_block->indirect_branches)},
};
*old_block = Block{
.begin{old_block->begin},
.end{pc},
.end_class{EndClass::Branch},
- .stack{std::move(old_block->stack)},
.cond{true},
+ .stack{std::move(old_block->stack)},
.branch_true{new_block},
.branch_false{nullptr},
+ .function_call{},
+ .return_block{},
+ .branch_reg{},
+ .branch_offset{},
+ .indirect_branches{},
};
}
@@ -173,10 +183,15 @@ Function::Function(ObjectPool<Block>& block_pool, Location start_address)
.begin{start_address},
.end{start_address},
.end_class{EndClass::Branch},
- .stack{},
.cond{true},
+ .stack{},
.branch_true{nullptr},
.branch_false{nullptr},
+ .function_call{},
+ .return_block{},
+ .branch_reg{},
+ .branch_offset{},
+ .indirect_branches{},
})},
.stack{},
}} {}
@@ -351,10 +366,15 @@ void CFG::AnalyzeCondInst(Block* block, FunctionId function_id, Location pc,
.begin{block->begin.Virtual()},
.end{block->begin.Virtual()},
.end_class{EndClass::Branch},
- .stack{block->stack},
.cond{cond},
+ .stack{block->stack},
.branch_true{conditional_block},
.branch_false{nullptr},
+ .function_call{},
+ .return_block{},
+ .branch_reg{},
+ .branch_offset{},
+ .indirect_branches{},
};
// Save the contents of the visited block in the conditional block
*conditional_block = std::move(*block);
@@ -502,10 +522,15 @@ Block* CFG::AddLabel(Block* block, Stack stack, Location pc, FunctionId function
.begin{pc},
.end{pc},
.end_class{EndClass::Branch},
- .stack{stack},
.cond{true},
+ .stack{stack},
.branch_true{nullptr},
.branch_false{nullptr},
+ .function_call{},
+ .return_block{},
+ .branch_reg{},
+ .branch_offset{},
+ .indirect_branches{},
})};
function.labels.push_back(Label{
.address{pc},
diff --git a/src/shader_recompiler/frontend/maxwell/control_flow.h b/src/shader_recompiler/frontend/maxwell/control_flow.h
index a8c90d27a..466b14198 100644
--- a/src/shader_recompiler/frontend/maxwell/control_flow.h
+++ b/src/shader_recompiler/frontend/maxwell/control_flow.h
@@ -79,18 +79,14 @@ struct Block : boost::intrusive::set_base_hook<
Location begin;
Location end;
EndClass end_class;
- Stack stack;
IR::Condition cond;
- union {
- Block* branch_true;
- FunctionId function_call;
- IR::Reg branch_reg;
- };
- union {
- Block* branch_false;
- Block* return_block;
- s32 branch_offset;
- };
+ Stack stack;
+ Block* branch_true;
+ Block* branch_false;
+ FunctionId function_call;
+ Block* return_block;
+ IR::Reg branch_reg;
+ s32 branch_offset;
std::vector<IndirectBranch> indirect_branches;
};
diff --git a/src/shader_recompiler/frontend/maxwell/program.cpp b/src/shader_recompiler/frontend/maxwell/program.cpp
index 05b7591bc..58caa35a1 100644
--- a/src/shader_recompiler/frontend/maxwell/program.cpp
+++ b/src/shader_recompiler/frontend/maxwell/program.cpp
@@ -21,7 +21,7 @@ void RemoveUnreachableBlocks(IR::Program& program) {
if (program.blocks.size() == program.post_order_blocks.size()) {
return;
}
- const auto begin{std::next(program.blocks.begin())};
+ const auto begin{program.blocks.begin() + 1};
const auto end{program.blocks.end()};
const auto pred{[](IR::Block* block) { return block->ImmediatePredecessors().empty(); }};
program.blocks.erase(std::remove_if(begin, end, pred), end);