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[syntax tree] more fixes in lowering phi nodes

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This commit is contained in:
Philippe Tillet
2019-02-26 12:36:37 -05:00
parent 338f291835
commit 68dea75aa0
10 changed files with 118 additions and 41 deletions
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15
lib/ast/lowering.cpp
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@@ -255,10 +255,25 @@ ir::type* function::type_impl(ir::module* mod, ir::type *type) const{
}
/* Function definition */
ir::attribute_t get_ir_attr(STORAGE_SPEC_T spec){
switch(spec){
case RESTRICT_T: return ir::noalias;
case READONLY_T: return ir::readonly;
case WRITEONLY_T: return ir::writeonly;
default: throw std::runtime_error("cannot convert storage specifier to IR function attribute");
}
}
ir::value* function_definition::codegen(ir::module *mod) const{
ir::function_type *prototype = (ir::function_type*)header_->type(mod, spec_->type(mod));
const std::string &name = header_->id()->name();
ir::function *fn = mod->get_or_insert_function(name, prototype);
for(unsigned i = 0; i < header_->get_num_args(); i++){
parameter *param = header_->get_arg(i);
std::vector<STORAGE_SPEC_T> storage = param->storage();
for(STORAGE_SPEC_T spec: storage)
fn->add_attr(1 + i, get_ir_attr(spec));
}
header_->bind_parameters(mod, fn);
ir::basic_block *entry = ir::basic_block::create(mod->get_context(), "entry", fn);
mod->seal_block(entry);