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Replace BlockCall symbol with the one in current scope #1688

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Merged
merged 3 commits into from
Apr 18, 2023
Merged

Replace BlockCall symbol with the one in current scope #1688

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63fbb9d
Replace the BlockCall symbol with the one in current_scope
Thirumalai-Shaktivel Apr 13, 2023
2daccd6
Apply the replace_symbol only for Variable
Thirumalai-Shaktivel Apr 18, 2023
f47bfa5
Merge branch 'main' into inline_func
Thirumalai-Shaktivel Apr 18, 2023
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50 changes: 29 additions & 21 deletions src/libasr/pass/inline_function_calls.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -47,7 +47,7 @@ class InlineFunctionCallVisitor : public PassUtils::PassVisitor<InlineFunctionCa
bool fixed_duplicated_expr_stmt;
bool is_fast;

// Stores the local variables corresponding to the ones
// Stores the local variables or/and Block symbol corresponding to the ones
// present in function symbol table.
std::map<std::string, ASR::symbol_t*> arg2value;

Expand Down Expand Up @@ -95,33 +95,40 @@ class InlineFunctionCallVisitor : public PassUtils::PassVisitor<InlineFunctionCa
current_routine.clear();
}

// If anything is not local to a function being inlined
// then do not inline the function by setting
// fixed_duplicated_expr_stmt to false.
// To be supported later.
#define replace_symbol(sym, symbol_t, m_v) \
std::string sym_name = ASRUtils::symbol_name(sym); \
if( current_routine_scope && \
current_routine_scope->get_symbol(sym_name) == nullptr ) { \
fixed_duplicated_expr_stmt = false; \
return ; \
} \
if( arg2value.find(sym_name) != arg2value.end() ) { \
LCOMPILERS_ASSERT(ASR::is_a<symbol_t>(*sym)) \
symbol_t *x_var = ASR::down_cast<symbol_t>(arg2value[sym_name]); \
if( current_scope->get_symbol(std::string(x_var->m_name))) { \
m_v = arg2value[sym_name]; \
} \
}

void visit_Var(const ASR::Var_t& x) {
ASR::Var_t& xx = const_cast<ASR::Var_t&>(x);
std::string x_var_name = std::string(ASRUtils::symbol_name(x.m_v));

// If anything is not local to a function being inlined
// then do not inline the function by setting
// fixed_duplicated_expr_stmt to false.
// To be supported later.
if( current_routine_scope &&
current_routine_scope->get_symbol(x_var_name) == nullptr ) {
fixed_duplicated_expr_stmt = false;
return ;
}
if( x.m_v->type == ASR::symbolType::Variable ) {
ASR::Variable_t* x_var = ASR::down_cast<ASR::Variable_t>(x.m_v);
if( arg2value.find(x_var_name) != arg2value.end() ) {
x_var = ASR::down_cast<ASR::Variable_t>(arg2value[x_var_name]);
if( current_scope->get_symbol(std::string(x_var->m_name)) != nullptr ) {
xx.m_v = arg2value[x_var_name];
}
x_var = ASR::down_cast<ASR::Variable_t>(x.m_v);
}
ASR::symbol_t *sym = ASRUtils::symbol_get_past_external(x.m_v);
if (ASR::is_a<ASR::Variable_t>(*sym)) {
replace_symbol(sym, ASR::Variable_t, xx.m_v);
} else {
fixed_duplicated_expr_stmt = false;
}
}

void visit_BlockCall(const ASR::BlockCall_t &x) {
ASR::BlockCall_t& xx = const_cast<ASR::BlockCall_t&>(x);
replace_symbol(x.m_m, ASR::Block_t, xx.m_m);
}

void set_empty_block(SymbolTable* scope, const Location& loc) {
std::string empty_block_name = scope->get_unique_name("~empty_block");
if( empty_block_name != "~empty_block" ) {
Expand All @@ -133,6 +140,7 @@ class InlineFunctionCallVisitor : public PassUtils::PassVisitor<InlineFunctionCa
s2c(al, empty_block_name), nullptr, 0));
scope->add_symbol(empty_block_name, empty_block);
}
arg2value[empty_block_name] = empty_block;
}

void remove_empty_block(SymbolTable* scope) {
Expand Down