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Fix build times for -o:<string> in LLVM-17

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This commit is contained in:
gingerBill
2023-09-21 16:48:00 +01:00
parent 20ce8c4c51
commit 963559676e
6 changed files with 17 additions and 61 deletions
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src/llvm_backend.cpp
+15 -15
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@@ -1025,6 +1025,8 @@ gb_internal lbProcedure *lb_create_startup_type_info(lbModule *m) {
LLVMSetLinkage(p->value, LLVMInternalLinkage);
lb_add_attribute_to_proc(m, p->value, "nounwind");
lb_add_attribute_to_proc(m, p->value, "optnone");
lb_add_attribute_to_proc(m, p->value, "noinline");
lb_begin_procedure_body(p);
@@ -1086,6 +1088,8 @@ gb_internal lbProcedure *lb_create_startup_runtime(lbModule *main_module, lbProc
lbProcedure *p = lb_create_dummy_procedure(main_module, str_lit(LB_STARTUP_RUNTIME_PROC_NAME), proc_type);
p->is_startup = true;
lb_add_attribute_to_proc(p->module, p->value, "optnone");
lb_add_attribute_to_proc(p->module, p->value, "noinline");
lb_begin_procedure_body(p);
@@ -1189,6 +1193,8 @@ gb_internal lbProcedure *lb_create_cleanup_runtime(lbModule *main_module) { // C
lbProcedure *p = lb_create_dummy_procedure(main_module, str_lit(LB_CLEANUP_RUNTIME_PROC_NAME), proc_type);
p->is_startup = true;
lb_add_attribute_to_proc(p->module, p->value, "optnone");
lb_add_attribute_to_proc(p->module, p->value, "noinline");
lb_begin_procedure_body(p);
@@ -1396,6 +1402,8 @@ gb_internal WORKER_TASK_PROC(lb_llvm_function_pass_per_module) {
lbFunctionPassManagerKind pass_manager_kind = lbFunctionPassManager_default;
if (p->flags & lbProcedureFlag_WithoutMemcpyPass) {
pass_manager_kind = lbFunctionPassManager_default_without_memcpy;
lb_add_attribute_to_proc(p->module, p->value, "optnone");
lb_add_attribute_to_proc(p->module, p->value, "noinline");
} else {
if (p->entity && p->entity->kind == Entity_Procedure) {
switch (p->entity->Procedure.optimization_mode) {
@@ -1405,6 +1413,7 @@ gb_internal WORKER_TASK_PROC(lb_llvm_function_pass_per_module) {
break;
case ProcedureOptimizationMode_Size:
pass_manager_kind = lbFunctionPassManager_size;
lb_add_attribute_to_proc(p->module, p->value, "optsize");
break;
case ProcedureOptimizationMode_Speed:
pass_manager_kind = lbFunctionPassManager_speed;
@@ -1463,22 +1472,12 @@ gb_internal WORKER_TASK_PROC(lb_llvm_module_pass_worker_proc) {
LLVMPassBuilderOptionsRef pb_options = LLVMCreatePassBuilderOptions();
defer (LLVMDisposePassBuilderOptions(pb_options));
LLVMPassBuilderOptionsSetVerifyEach(pb_options, true);
// int inline_threshold = 0;
// LLVMPassBuilderOptionsSetInlinerThreshold(pb_options, inline_threshold);
if (build_context.optimization_level >= 2) {
LLVMPassBuilderOptionsSetLoopVectorization(pb_options, true);
LLVMPassBuilderOptionsSetLoopUnrolling (pb_options, true);
LLVMPassBuilderOptionsSetMergeFunctions (pb_options, true);
}
switch (build_context.optimization_level) {
case -1:
break;
case 0:
array_add(&passes, "default<O0>");
array_add(&passes, "always-inline");
array_add(&passes, "function(annotation-remarks)");
break;
case 1:
array_add(&passes, "default<Os>");
@@ -1506,9 +1505,8 @@ gb_internal WORKER_TASK_PROC(lb_llvm_module_pass_worker_proc) {
array_add(&passes, "tsan");
}
if (passes.count == 0) {
return 0;
array_add(&passes, "verify");
}
gbString passes_str = gb_string_make_reserve(heap_allocator(), 1024);
@@ -1520,7 +1518,10 @@ gb_internal WORKER_TASK_PROC(lb_llvm_module_pass_worker_proc) {
passes_str = gb_string_appendc(passes_str, passes[i]);
}
gb_printf_err("LLVMRunPasses [START]\n");
LLVMErrorRef llvm_err = LLVMRunPasses(wd->m->mod, passes_str, wd->target_machine, pb_options);
gb_printf_err("LLVMRunPasses [END]\n");
defer (LLVMConsumeError(llvm_err));
if (llvm_err != nullptr) {
char *llvm_error = LLVMGetErrorMessage(llvm_err);
@@ -2547,7 +2548,6 @@ gb_internal bool lb_generate_code(lbGenerator *gen) {
TIME_SECTION("LLVM Module Verification");
if (!lb_llvm_module_verification(gen, do_threading)) {
return false;
}