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Yul Optimizer: Remove dead code

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This commit is contained in:
Mathias Baumann
2019-04-01 17:16:04 +02:00
parent e7340f2126
commit e20acf5d0a
21 changed files with 482 additions and 3 deletions
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libyul/optimiser/Suite.cpp
+5
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@@ -23,6 +23,7 @@
#include <libyul/optimiser/Disambiguator.h>
#include <libyul/optimiser/VarDeclInitializer.h>
#include <libyul/optimiser/BlockFlattener.h>
#include <libyul/optimiser/DeadCodeEliminator.h>
#include <libyul/optimiser/FunctionGrouper.h>
#include <libyul/optimiser/FunctionHoister.h>
#include <libyul/optimiser/EquivalentFunctionCombiner.h>
@@ -70,6 +71,7 @@ void OptimiserSuite::run(
VarDeclInitializer{}(ast);
FunctionHoister{}(ast);
BlockFlattener{}(ast);
DeadCodeEliminator{}(ast);
FunctionGrouper{}(ast);
EquivalentFunctionCombiner::run(ast);
UnusedPruner::runUntilStabilised(*_dialect, ast, reservedIdentifiers);
@@ -107,6 +109,7 @@ void OptimiserSuite::run(
// still in SSA, perform structural simplification
StructuralSimplifier{*_dialect}(ast);
BlockFlattener{}(ast);
DeadCodeEliminator{}(ast);
UnusedPruner::runUntilStabilised(*_dialect, ast, reservedIdentifiers);
}
{
@@ -158,6 +161,7 @@ void OptimiserSuite::run(
ExpressionSimplifier::run(*_dialect, ast);
StructuralSimplifier{*_dialect}(ast);
BlockFlattener{}(ast);
DeadCodeEliminator{}(ast);
CommonSubexpressionEliminator{*_dialect}(ast);
SSATransform::run(ast, dispenser);
RedundantAssignEliminator::run(*_dialect, ast);
@@ -192,6 +196,7 @@ void OptimiserSuite::run(
// message once we perform code generation.
StackCompressor::run(_dialect, ast, _optimizeStackAllocation, stackCompressorMaxIterations);
BlockFlattener{}(ast);
DeadCodeEliminator{}(ast);
VarNameCleaner{ast, *_dialect, reservedIdentifiers}(ast);
yul::AsmAnalyzer::analyzeStrictAssertCorrect(_dialect, ast);