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Minimize stack wastage with compound literals defining variables

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gingerBill
2023-02-17 14:26:22 +00:00
parent d86df8321c
commit 99460c9e32
4 changed files with 45 additions and 2 deletions
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src/llvm_backend_const.cpp
+4
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@@ -460,6 +460,8 @@ gb_internal lbValue lb_const_value(lbModule *m, Type *type, ExactValue value, bo
LLVMValueRef ptr = LLVMBuildInBoundsGEP2(p->builder, llvm_type, array_data, indices, 2, "");
LLVMValueRef len = LLVMConstInt(lb_type(m, t_int), count, true);
lbAddr slice = lb_add_local_generated(p, type, false);
map_set(&m->exact_value_compound_literal_addr_map, value.value_compound, slice);
lb_fill_slice(p, slice, {ptr, alloc_type_pointer(elem)}, {len, t_int});
return lb_addr_load(p, slice);
}
@@ -1042,6 +1044,8 @@ gb_internal lbValue lb_const_value(lbModule *m, Type *type, ExactValue value, bo
GB_ASSERT(is_local);
lbProcedure *p = m->curr_procedure;
lbAddr v = lb_add_local_generated(p, res.type, true);
map_set(&m->exact_value_compound_literal_addr_map, value.value_compound, v);
LLVMBuildStore(p->builder, constant_value, v.addr.value);
for (isize i = 0; i < value_count; i++) {
LLVMValueRef val = old_values[i];