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Simplify lb_gen_map_header

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gingerBill
2021-10-07 14:12:47 +01:00
parent fd9adaf1de
commit cb9101e0a0
1 changed files with 22 additions and 13 deletions
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35
src/llvm_backend.cpp
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@@ -495,11 +495,6 @@ lbValue lb_gen_map_header(lbProcedure *p, lbValue map_val_ptr, Type *map_type) {
Type *val_type = map_type->Map.value;
gb_unused(val_type);
// NOTE(bill): Removes unnecessary allocation if split gep
lbValue gep0 = lb_emit_struct_ep(p, h.addr, 0);
lbValue m = lb_emit_conv(p, map_val_ptr, type_deref(gep0.type));
lb_emit_store(p, gep0, m);
i64 entry_size = type_size_of (map_type->Map.entry_type);
i64 entry_align = type_align_of (map_type->Map.entry_type);
@@ -508,14 +503,28 @@ lbValue lb_gen_map_header(lbProcedure *p, lbValue map_val_ptr, Type *map_type) {
i64 value_offset = type_offset_of(map_type->Map.entry_type, 3);
i64 value_size = type_size_of (map_type->Map.value);
lb_emit_store(p, lb_emit_struct_ep(p, h.addr, 1), lb_get_equal_proc_for_type(p->module, key_type));
lb_emit_store(p, lb_emit_struct_ep(p, h.addr, 2), lb_const_int(p->module, t_int, entry_size));
lb_emit_store(p, lb_emit_struct_ep(p, h.addr, 3), lb_const_int(p->module, t_int, entry_align));
lb_emit_store(p, lb_emit_struct_ep(p, h.addr, 4), lb_const_int(p->module, t_uintptr, key_offset));
lb_emit_store(p, lb_emit_struct_ep(p, h.addr, 5), lb_const_int(p->module, t_int, key_size));
lb_emit_store(p, lb_emit_struct_ep(p, h.addr, 6), lb_const_int(p->module, t_uintptr, value_offset));
lb_emit_store(p, lb_emit_struct_ep(p, h.addr, 7), lb_const_int(p->module, t_int, value_size));
Type *map_header_base = base_type(t_map_header);
GB_ASSERT(map_header_base->Struct.fields.count == 8);
Type *m_type = map_header_base->Struct.fields[0]->type;
LLVMValueRef const_values[8] = {};
const_values[0] = LLVMConstNull(lb_type(p->module, m_type));
const_values[1] = lb_get_equal_proc_for_type(p->module, key_type) .value;
const_values[2] = lb_const_int(p->module, t_int, entry_size) .value;
const_values[3] = lb_const_int(p->module, t_int, entry_align) .value;
const_values[4] = lb_const_int(p->module, t_uintptr, key_offset) .value;
const_values[5] = lb_const_int(p->module, t_int, key_size) .value;
const_values[6] = lb_const_int(p->module, t_uintptr, value_offset).value;
const_values[7] = lb_const_int(p->module, t_int, value_size) .value;
LLVMValueRef const_value = llvm_const_named_struct(p->module, t_map_header, const_values, gb_count_of(const_values));
LLVMBuildStore(p->builder, const_value, h.addr.value);
// NOTE(bill): Removes unnecessary allocation if split gep
lbValue gep0 = lb_emit_struct_ep(p, h.addr, 0);
lbValue m = lb_emit_conv(p, map_val_ptr, type_deref(gep0.type));
lb_emit_store(p, gep0, m);
return lb_addr_load(p, h);
}