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logic for driving AST optimization when requested

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This commit is contained in:
Vern Paxson 2021-02-27 11:39:44 -08:00
parent 77f04935a8
commit faf1b65ec4
1 changed files with 32 additions and 1 deletions
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33
src/script_opt/ScriptOpt.cc
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@ -78,8 +78,39 @@ void optimize_func(ScriptFunc* f, std::shared_ptr<ProfileFunc> pf,
f->ReplaceBody(body, new_body);
body = new_body;
if ( analysis_options.optimize_AST )
{
pf = std::make_shared<ProfileFunc>(false);
body->Traverse(pf.get());
RD_Decorate reduced_rds(pf);
reduced_rds.TraverseFunction(f, scope, body);
if ( reporter->Errors() > 0 )
{
pop_scope();
return;
}
rc->SetDefSetsMgr(reduced_rds.GetDefSetsMgr());
new_body = rc->Reduce(body);
if ( reporter->Errors() > 0 )
{
pop_scope();
return;
}
if ( analysis_options.only_func || analysis_options.dump_xform )
printf("Optimized: %s\n", obj_desc(new_body.get()).c_str());
f->ReplaceBody(body, new_body);
body = new_body;
}
// Profile the new body.
pf = std::make_shared<ProfileFunc>(false);
pf = std::make_shared<ProfileFunc>();
body->Traverse(pf.get());
// Compute its reaching definitions.