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Begin work on making the type info table be constantly initialized

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gingerBill
2023-09-22 14:39:51 +01:00
parent 5e99289d7a
commit 082324d7b9
8 changed files with 960 additions and 54 deletions
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12
src/llvm_backend.cpp
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@@ -2225,10 +2225,16 @@ gb_internal bool lb_generate_code(lbGenerator *gen) {
{ // Add type info data
isize max_type_info_count = info->minimum_dependency_type_info_set.count+1;
// gb_printf_err("max_type_info_count: %td\n", max_type_info_count);
Type *t = alloc_type_array(t_type_info, max_type_info_count);
LLVMValueRef g = LLVMAddGlobal(m->mod, lb_type(m, t), LB_TYPE_INFO_DATA_NAME);
LLVMSetInitializer(g, LLVMConstNull(lb_type(m, t)));
// IMPORTANT NOTE(bill): As LLVM does not have a union type, an array of unions cannot be initialized
// at compile time without cheating in some way. This means to emulate an array of unions is to use
// a giant packed struct of "corrected" data types.
LLVMTypeRef internal_llvm_type = lb_setup_type_info_data_internal_type(m, max_type_info_count);
LLVMValueRef g = LLVMAddGlobal(m->mod, internal_llvm_type, LB_TYPE_INFO_DATA_NAME);
LLVMSetInitializer(g, LLVMConstNull(internal_llvm_type));
LLVMSetLinkage(g, USE_SEPARATE_MODULES ? LLVMExternalLinkage : LLVMInternalLinkage);
lbValue value = {};