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[Codegen] Swap out analyzer when outlining #9117

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Merged
tqchen merged 1 commit into from
Sep 28, 2021
Merged

[Codegen] Swap out analyzer when outlining #9117

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13 changes: 11 additions & 2 deletions src/target/llvm/codegen_cpu.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -473,14 +473,17 @@ void CodeGenCPU::CreateComputeScope(const AttrStmtNode* op) {
}
#endif
}
auto new_analyzer = std::make_unique<arith::Analyzer>();
std::swap(function_, fcompute);
std::swap(new_vmap, var_map_);
std::swap(analyzer_, new_analyzer);
std::swap(var_map_, new_vmap);
BasicBlock* compute_entry = BasicBlock::Create(*ctx_, "entry", function_);
builder_->SetInsertPoint(compute_entry);
this->VisitStmt(op->body);
builder_->CreateRet(ConstInt32(0));
// swap the var map back, now we are back on track.
std::swap(new_vmap, var_map_);
std::swap(var_map_, new_vmap);
std::swap(analyzer_, new_analyzer);
std::swap(function_, fcompute);
builder_->SetInsertPoint(compute_call_end);
}
Expand Down Expand Up @@ -551,13 +554,16 @@ void CodeGenCPU::CreateParallelLaunch(const Stmt& body, int num_task) {
new_vmap[par_env.num_task.get()] =
builder_->CreateLoad(builder_->CreateInBoundsGEP(penv, {ConstInt32(0), ConstInt32(1)}));
par_env.penv = penv;
auto new_analyzer = std::make_unique<arith::Analyzer>();
std::swap(function_, f);
std::swap(parallel_env_, par_env);
std::swap(analyzer_, new_analyzer);
std::swap(var_map_, new_vmap);
this->VisitStmt(body);
builder_->CreateRet(ConstInt32(0));
// swap the var map back, now we are back on track.
std::swap(var_map_, new_vmap);
std::swap(analyzer_, new_analyzer);
std::swap(parallel_env_, par_env);
std::swap(function_, f);
ICHECK_NE(par_env.parallel_loop_count, 0) << "Cannot find parallel loop within parallel launch";
Expand Down Expand Up @@ -604,12 +610,15 @@ void CodeGenCPU::CreateStaticInit(const std::string& init_fname, const Stmt& bod
std::unordered_map<const VarNode*, llvm::Value*> new_vmap;
UnpackClosureData(cdata, vfields, &new_vmap);
ICHECK(parallel_env_.penv == nullptr);
auto new_analyzer = std::make_unique<arith::Analyzer>();
std::swap(function_, f);
std::swap(analyzer_, new_analyzer);
std::swap(var_map_, new_vmap);
this->VisitStmt(body);
builder_->CreateRet(ConstInt32(0));
// swap the var map back, now we are back on track.
std::swap(var_map_, new_vmap);
std::swap(analyzer_, new_analyzer);
std::swap(function_, f);
builder_->SetInsertPoint(init_end);
}
Expand Down