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Shader_IR: corrections and clang-format

pull/15/merge
Fernando Sahmkow 6 years ago
committed by FernandoS27
parent
466cd52ad4
commit
b3c46d6948
2 changed files with 64 additions and 70 deletions
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  1. 132
      src/video_core/shader/ast.cpp
  2. 2
      src/video_core/shader/expr.h

132
src/video_core/shader/ast.cpp
View File

@ -13,7 +13,7 @@ namespace VideoCommon::Shader {
ASTZipper::ASTZipper() = default;
void ASTZipper::Init(ASTNode new_first, ASTNode parent) {
void ASTZipper::Init(const ASTNode new_first, const ASTNode parent) {
ASSERT(new_first->manager == nullptr);
first = new_first;
last = new_first;
@ -26,7 +26,7 @@ void ASTZipper::Init(ASTNode new_first, ASTNode parent) {
}
}
void ASTZipper::PushBack(ASTNode new_node) {
void ASTZipper::PushBack(const ASTNode new_node) {
ASSERT(new_node->manager == nullptr);
new_node->previous = last;
if (last) {
@ -40,7 +40,7 @@ void ASTZipper::PushBack(ASTNode new_node) {
new_node->manager = this;
}
void ASTZipper::PushFront(ASTNode new_node) {
void ASTZipper::PushFront(const ASTNode new_node) {
ASSERT(new_node->manager == nullptr);
new_node->previous.reset();
new_node->next = first;
@ -54,13 +54,13 @@ void ASTZipper::PushFront(ASTNode new_node) {
new_node->manager = this;
}
void ASTZipper::InsertAfter(ASTNode new_node, ASTNode at_node) {
void ASTZipper::InsertAfter(const ASTNode new_node, const ASTNode at_node) {
ASSERT(new_node->manager == nullptr);
if (!at_node) {
PushFront(new_node);
return;
}
ASTNode next = at_node->next;
const ASTNode next = at_node->next;
if (next) {
next->previous = new_node;
}
@ -73,13 +73,13 @@ void ASTZipper::InsertAfter(ASTNode new_node, ASTNode at_node) {
new_node->manager = this;
}
void ASTZipper::InsertBefore(ASTNode new_node, ASTNode at_node) {
void ASTZipper::InsertBefore(const ASTNode new_node, const ASTNode at_node) {
ASSERT(new_node->manager == nullptr);
if (!at_node) {
PushBack(new_node);
return;
}
ASTNode previous = at_node->previous;
const ASTNode previous = at_node->previous;
if (previous) {
previous->next = new_node;
}
@ -92,7 +92,7 @@ void ASTZipper::InsertBefore(ASTNode new_node, ASTNode at_node) {
new_node->manager = this;
}
void ASTZipper::DetachTail(ASTNode node) {
void ASTZipper::DetachTail(const ASTNode node) {
ASSERT(node->manager == this);
if (node == first) {
first.reset();
@ -111,14 +111,14 @@ void ASTZipper::DetachTail(ASTNode node) {
}
}
void ASTZipper::DetachSegment(ASTNode start, ASTNode end) {
void ASTZipper::DetachSegment(const ASTNode start, const ASTNode end) {
ASSERT(start->manager == this && end->manager == this);
if (start == end) {
DetachSingle(start);
return;
}
ASTNode prev = start->previous;
ASTNode post = end->next;
const ASTNode prev = start->previous;
const ASTNode post = end->next;
if (!prev) {
first = post;
} else {
@ -142,10 +142,10 @@ void ASTZipper::DetachSegment(ASTNode start, ASTNode end) {
ASSERT(found);
}
void ASTZipper::DetachSingle(ASTNode node) {
void ASTZipper::DetachSingle(const ASTNode node) {
ASSERT(node->manager == this);
ASTNode prev = node->previous;
ASTNode post = node->next;
const ASTNode prev = node->previous;
const ASTNode post = node->next;
node->previous.reset();
node->next.reset();
if (!prev) {
@ -163,10 +163,10 @@ void ASTZipper::DetachSingle(ASTNode node) {
node->parent.reset();
}
void ASTZipper::Remove(ASTNode node) {
void ASTZipper::Remove(const ASTNode node) {
ASSERT(node->manager == this);
ASTNode next = node->next;
ASTNode previous = node->previous;
const ASTNode next = node->next;
const ASTNode previous = node->previous;
if (previous) {
previous->next = next;
}
@ -409,35 +409,35 @@ void ASTManager::DeclareLabel(u32 address) {
}
void ASTManager::InsertLabel(u32 address) {
u32 index = labels_map[address];
ASTNode label = ASTBase::Make<ASTLabel>(main_node, index);
const u32 index = labels_map[address];
const ASTNode label = ASTBase::Make<ASTLabel>(main_node, index);
labels[index] = label;
program->nodes.PushBack(label);
}
void ASTManager::InsertGoto(Expr condition, u32 address) {
u32 index = labels_map[address];
ASTNode goto_node = ASTBase::Make<ASTGoto>(main_node, condition, index);
const u32 index = labels_map[address];
const ASTNode goto_node = ASTBase::Make<ASTGoto>(main_node, condition, index);
gotos.push_back(goto_node);
program->nodes.PushBack(goto_node);
}
void ASTManager::InsertBlock(u32 start_address, u32 end_address) {
ASTNode block = ASTBase::Make<ASTBlockEncoded>(main_node, start_address, end_address);
const ASTNode block = ASTBase::Make<ASTBlockEncoded>(main_node, start_address, end_address);
program->nodes.PushBack(block);
}
void ASTManager::InsertReturn(Expr condition, bool kills) {
ASTNode node = ASTBase::Make<ASTReturn>(main_node, condition, kills);
const ASTNode node = ASTBase::Make<ASTReturn>(main_node, condition, kills);
program->nodes.PushBack(node);
}
void ASTManager::Decompile() {
auto it = gotos.begin();
while (it != gotos.end()) {
ASTNode goto_node = *it;
u32 label_index = goto_node->GetGotoLabel();
ASTNode label = labels[label_index];
const ASTNode goto_node = *it;
const u32 label_index = goto_node->GetGotoLabel();
const ASTNode label = labels[label_index];
if (!full_decompile) {
// We only decompile backward jumps
if (!IsBackwardsJump(goto_node, label)) {
@ -452,7 +452,7 @@ void ASTManager::Decompile() {
}
if (DirectlyRelated(goto_node, label)) {
u32 goto_level = goto_node->GetLevel();
u32 label_level = label->GetLevel();
const u32 label_level = label->GetLevel();
while (label_level < goto_level) {
MoveOutward(goto_node);
goto_level--;
@ -481,7 +481,7 @@ void ASTManager::Decompile() {
it++;
}
if (full_decompile) {
for (ASTNode label : labels) {
for (const ASTNode label : labels) {
auto& manager = label->GetManager();
manager.Remove(label);
}
@ -491,8 +491,8 @@ void ASTManager::Decompile() {
while (it != labels.end()) {
bool can_remove = true;
ASTNode label = *it;
for (ASTNode goto_node : gotos) {
u32 label_index = goto_node->GetGotoLabel();
for (const ASTNode goto_node : gotos) {
const u32 label_index = goto_node->GetGotoLabel();
ASTNode glabel = labels[label_index];
if (glabel == label) {
can_remove = false;
@ -535,8 +535,8 @@ ASTNode CommonParent(ASTNode first, ASTNode second) {
if (first->GetParent() == second->GetParent()) {
return first->GetParent();
}
u32 first_level = first->GetLevel();
u32 second_level = second->GetLevel();
const u32 first_level = first->GetLevel();
const u32 second_level = second->GetLevel();
u32 min_level;
u32 max_level;
ASTNode max;
@ -573,8 +573,8 @@ bool ASTManager::DirectlyRelated(ASTNode first, ASTNode second) {
if (first->GetParent() == second->GetParent()) {
return false;
}
u32 first_level = first->GetLevel();
u32 second_level = second->GetLevel();
const u32 first_level = first->GetLevel();
const u32 second_level = second->GetLevel();
u32 min_level;
u32 max_level;
ASTNode max;
@ -613,42 +613,37 @@ void ASTManager::SanityCheck() {
}
void ASTManager::EncloseDoWhile(ASTNode goto_node, ASTNode label) {
// ShowCurrentState("Before DoWhile Enclose");
ASTZipper& zipper = goto_node->GetManager();
ASTNode loop_start = label->GetNext();
const ASTNode loop_start = label->GetNext();
if (loop_start == goto_node) {
zipper.Remove(goto_node);
// ShowCurrentState("Ignore DoWhile Enclose");
return;
}
ASTNode parent = label->GetParent();
Expr condition = goto_node->GetGotoCondition();
const ASTNode parent = label->GetParent();
const Expr condition = goto_node->GetGotoCondition();
zipper.DetachSegment(loop_start, goto_node);
ASTNode do_while_node = ASTBase::Make<ASTDoWhile>(parent, condition);
const ASTNode do_while_node = ASTBase::Make<ASTDoWhile>(parent, condition);
ASTZipper* sub_zipper = do_while_node->GetSubNodes();
sub_zipper->Init(loop_start, do_while_node);
zipper.InsertAfter(do_while_node, label);
sub_zipper->Remove(goto_node);
// ShowCurrentState("After DoWhile Enclose");
}
void ASTManager::EncloseIfThen(ASTNode goto_node, ASTNode label) {
// ShowCurrentState("Before IfThen Enclose");
ASTZipper& zipper = goto_node->GetManager();
ASTNode if_end = label->GetPrevious();
const ASTNode if_end = label->GetPrevious();
if (if_end == goto_node) {
zipper.Remove(goto_node);
// ShowCurrentState("Ignore IfThen Enclose");
return;
}
ASTNode prev = goto_node->GetPrevious();
Expr condition = goto_node->GetGotoCondition();
const ASTNode prev = goto_node->GetPrevious();
const Expr condition = goto_node->GetGotoCondition();
bool do_else = false;
if (!disable_else_derivation && prev->IsIfThen()) {
Expr if_condition = prev->GetIfCondition();
const Expr if_condition = prev->GetIfCondition();
do_else = ExprAreEqual(if_condition, condition);
}
ASTNode parent = label->GetParent();
const ASTNode parent = label->GetParent();
zipper.DetachSegment(goto_node, if_end);
ASTNode if_node;
if (do_else) {
@ -667,34 +662,35 @@ void ASTManager::EncloseIfThen(ASTNode goto_node, ASTNode label) {
void ASTManager::MoveOutward(ASTNode goto_node) {
// ShowCurrentState("Before MoveOutward");
ASTZipper& zipper = goto_node->GetManager();
ASTNode parent = goto_node->GetParent();
const ASTNode parent = goto_node->GetParent();
ASTZipper& zipper2 = parent->GetManager();
ASTNode grandpa = parent->GetParent();
bool is_loop = parent->IsLoop();
bool is_else = parent->IsIfElse();
bool is_if = parent->IsIfThen();
const ASTNode grandpa = parent->GetParent();
const bool is_loop = parent->IsLoop();
const bool is_else = parent->IsIfElse();
const bool is_if = parent->IsIfThen();
ASTNode prev = goto_node->GetPrevious();
ASTNode post = goto_node->GetNext();
const ASTNode prev = goto_node->GetPrevious();
const ASTNode post = goto_node->GetNext();
Expr condition = goto_node->GetGotoCondition();
const Expr condition = goto_node->GetGotoCondition();
zipper.DetachSingle(goto_node);
if (is_loop) {
u32 var_index = NewVariable();
Expr var_condition = MakeExpr<ExprVar>(var_index);
ASTNode var_node = ASTBase::Make<ASTVarSet>(parent, var_index, condition);
ASTNode var_node_init = ASTBase::Make<ASTVarSet>(parent, var_index, false_condition);
const u32 var_index = NewVariable();
const Expr var_condition = MakeExpr<ExprVar>(var_index);
const ASTNode var_node = ASTBase::Make<ASTVarSet>(parent, var_index, condition);
const ASTNode var_node_init = ASTBase::Make<ASTVarSet>(parent, var_index, false_condition);
zipper2.InsertBefore(var_node_init, parent);
zipper.InsertAfter(var_node, prev);
goto_node->SetGotoCondition(var_condition);
ASTNode break_node = ASTBase::Make<ASTBreak>(parent, var_condition);
const ASTNode break_node = ASTBase::Make<ASTBreak>(parent, var_condition);
zipper.InsertAfter(break_node, var_node);
} else if (is_if || is_else) {
if (post) {
u32 var_index = NewVariable();
Expr var_condition = MakeExpr<ExprVar>(var_index);
ASTNode var_node = ASTBase::Make<ASTVarSet>(parent, var_index, condition);
ASTNode var_node_init = ASTBase::Make<ASTVarSet>(parent, var_index, false_condition);
const u32 var_index = NewVariable();
const Expr var_condition = MakeExpr<ExprVar>(var_index);
const ASTNode var_node = ASTBase::Make<ASTVarSet>(parent, var_index, condition);
const ASTNode var_node_init =
ASTBase::Make<ASTVarSet>(parent, var_index, false_condition);
if (is_if) {
zipper2.InsertBefore(var_node_init, parent);
} else {
@ -703,7 +699,7 @@ void ASTManager::MoveOutward(ASTNode goto_node) {
zipper.InsertAfter(var_node, prev);
goto_node->SetGotoCondition(var_condition);
zipper.DetachTail(post);
ASTNode if_node = ASTBase::Make<ASTIfThen>(parent, MakeExprNot(var_condition));
const ASTNode if_node = ASTBase::Make<ASTIfThen>(parent, MakeExprNot(var_condition));
ASTZipper* sub_zipper = if_node->GetSubNodes();
sub_zipper->Init(post, if_node);
zipper.InsertAfter(if_node, var_node);
@ -721,16 +717,14 @@ void ASTManager::MoveOutward(ASTNode goto_node) {
} else {
UNREACHABLE();
}
ASTNode next = parent->GetNext();
const ASTNode next = parent->GetNext();
if (is_if && next && next->IsIfElse()) {
zipper2.InsertAfter(goto_node, next);
goto_node->SetParent(grandpa);
// ShowCurrentState("After MoveOutward");
return;
}
zipper2.InsertAfter(goto_node, parent);
goto_node->SetParent(grandpa);
// ShowCurrentState("After MoveOutward");
}
class ASTClearer {

2
src/video_core/shader/expr.h
View File

@ -4,8 +4,8 @@
#pragma once
#include <variant>
#include <memory>
#include <variant>
#include "video_core/engines/shader_bytecode.h"

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