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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*****************************************************************************/
#ifndef _PHASE_H_
#define _PHASE_H_
class Phase
{
public:
virtual void Run();
protected:
Phase(Compiler* _comp, const char* _name, Phases _phase = PHASE_NUMBER_OF)
: comp(_comp), name(_name), phase(_phase), doChecks(true)
{
}
virtual void PrePhase();
virtual void DoPhase() = 0;
virtual void PostPhase();
Compiler* comp;
const char* name;
Phases phase;
bool doChecks;
};
inline void Phase::Run()
{
PrePhase();
DoPhase();
PostPhase();
}
inline void Phase::PrePhase()
{
#ifdef DEBUG
if (VERBOSE)
{
printf("*************** In %s\n", name);
printf("Trees before %s\n", name);
comp->fgDispBasicBlocks(true);
}
if (doChecks && comp->expensiveDebugCheckLevel >= 2)
{
// If everyone used the Phase class, this would duplicate the PostPhase() from the previous phase.
// But, not everyone does, so go ahead and do the check here, too.
comp->fgDebugCheckBBlist();
comp->fgDebugCheckLinks();
}
#endif // DEBUG
}
inline void Phase::PostPhase()
{
#ifdef DEBUG
if (VERBOSE)
{
printf("*************** Exiting %s\n", name);
printf("Trees after %s\n", name);
comp->fgDispBasicBlocks(true);
}
#endif // DEBUG
if (phase != PHASE_NUMBER_OF)
{
comp->EndPhase(phase);
}
#ifdef DEBUG
if (doChecks)
{
comp->fgDebugCheckBBlist();
comp->fgDebugCheckLinks();
}
#endif // DEBUG
}
#endif /* End of _PHASE_H_ */
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