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Expose runtime._startup_runtime to allow for freestanding targets in the future

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This commit is contained in:
gingerBill
2020-09-15 10:51:51 +01:00
parent 3211e60018
commit 0cd681e6b7
4 changed files with 47 additions and 45 deletions
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src/llvm_backend.cpp
+3 -31
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@@ -11850,9 +11850,6 @@ void lb_generate_code(lbGenerator *gen) {
arena_init(&temp_arena, heap_allocator());
gbAllocator temp_allocator = arena_allocator(&temp_arena);
gen->module.global_default_context = lb_add_global_generated(m, t_context, {});
gen->module.global_default_context.kind = lbAddr_Context;
auto *min_dep_set = &info->minimum_dependency_set;
@@ -12228,7 +12225,6 @@ void lb_generate_code(lbGenerator *gen) {
TIME_SECTION("LLVM Runtime Creation");
lbProcedure *startup_type_info = nullptr;
lbProcedure *startup_context = nullptr;
lbProcedure *startup_runtime = nullptr;
{ // Startup Type Info
Type *params = alloc_type_tuple();
@@ -12255,31 +12251,6 @@ void lb_generate_code(lbGenerator *gen) {
LLVMRunFunctionPassManager(default_function_pass_manager, p->value);
}
{ // Startup Context
Type *params = alloc_type_tuple();
Type *results = alloc_type_tuple();
Type *proc_type = alloc_type_proc(nullptr, nullptr, 0, nullptr, 0, false, ProcCC_CDecl);
lbProcedure *p = lb_create_dummy_procedure(m, str_lit(LB_STARTUP_CONTEXT_PROC_NAME), proc_type);
p->is_startup = true;
startup_context = p;
lb_begin_procedure_body(p);
lb_emit_init_context(p, p->module->global_default_context);
lb_end_procedure_body(p);
if (LLVMVerifyFunction(p->value, LLVMReturnStatusAction)) {
gb_printf_err("LLVM CODE GEN FAILED FOR PROCEDURE: %s\n", "main");
LLVMDumpValue(p->value);
gb_printf_err("\n\n\n\n");
LLVMVerifyFunction(p->value, LLVMAbortProcessAction);
}
LLVMRunFunctionPassManager(default_function_pass_manager, p->value);
}
{ // Startup Runtime
Type *params = alloc_type_tuple();
Type *results = alloc_type_tuple();
@@ -12292,6 +12263,9 @@ void lb_generate_code(lbGenerator *gen) {
lb_begin_procedure_body(p);
LLVMBuildCall2(p->builder, LLVMGetElementType(lb_type(m, startup_type_info->type)), startup_type_info->value, nullptr, 0, "");
for_array(i, global_variables) {
auto *var = &global_variables[i];
if (var->decl->init_expr != nullptr) {
@@ -12396,8 +12370,6 @@ void lb_generate_code(lbGenerator *gen) {
lbValue *found = map_get(&m->values, hash_entity(entry_point));
GB_ASSERT(found != nullptr);
LLVMBuildCall2(p->builder, LLVMGetElementType(lb_type(m, startup_type_info->type)), startup_type_info->value, nullptr, 0, "");
LLVMBuildCall2(p->builder, LLVMGetElementType(lb_type(m, startup_context->type)), startup_context->value, nullptr, 0, "");
LLVMBuildCall2(p->builder, LLVMGetElementType(lb_type(m, startup_runtime->type)), startup_runtime->value, nullptr, 0, "");
LLVMBuildCall2(p->builder, LLVMGetElementType(lb_type(m, found->type)), found->value, nullptr, 0, "");
LLVMBuildRet(p->builder, LLVMConstInt(lb_type(m, t_i32), 0, false));