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// slang-ir-simplify-cfg.h
#pragma once
namespace Slang
{
struct IRModule;
struct IRGlobalValueWithCode;
struct IRLoop;
struct IRDominatorTree;
struct CFGSimplificationOptions
{
bool removeTrivialSingleIterationLoops = true;
bool removeSideEffectFreeLoops = true;
static CFGSimplificationOptions getDefault() { return CFGSimplificationOptions(); }
static CFGSimplificationOptions getFast() { return CFGSimplificationOptions{false, false}; }
};
bool isTrivialSingleIterationLoop(
IRDominatorTree* domTree,
IRGlobalValueWithCode* func,
IRLoop* loop);
/// Simplifies control flow graph by merging basic blocks that
/// forms a simple linear chain.
/// Returns true if changed.
bool simplifyCFG(IRModule* module, CFGSimplificationOptions options);
bool simplifyCFG(IRGlobalValueWithCode* func, CFGSimplificationOptions options);
} // namespace Slang
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