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Cache the paddding filler type

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This commit is contained in:
gingerBill
2024-08-18 18:37:40 +01:00
parent f49ebae956
commit 8e52a52580
3 changed files with 36 additions and 3 deletions
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9
src/llvm_backend.hpp
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@@ -137,6 +137,12 @@ enum lbFunctionPassManagerKind {
lbFunctionPassManager_COUNT
};
struct lbPadType {
i64 padding;
i64 padding_align;
LLVMTypeRef type;
};
struct lbModule {
LLVMModuleRef mod;
LLVMContextRef ctx;
@@ -199,6 +205,9 @@ struct lbModule {
PtrMap<Ast *, lbAddr> exact_value_compound_literal_addr_map; // Key: Ast_CompoundLit
LLVMPassManagerRef function_pass_managers[lbFunctionPassManager_COUNT];
BlockingMutex pad_types_mutex;
Array<lbPadType> pad_types;
};
struct lbEntityCorrection {

3
src/llvm_backend_general.cpp
View File

@@ -91,6 +91,9 @@ gb_internal void lb_init_module(lbModule *m, Checker *c) {
map_init(&m->map_cell_info_map, 0);
map_init(&m->exact_value_compound_literal_addr_map, 1024);
array_init(&m->pad_types, heap_allocator());
m->const_dummy_builder = LLVMCreateBuilderInContext(m->ctx);
}

27
src/llvm_backend_utility.cpp
View File

@@ -1003,6 +1003,21 @@ gb_internal i32 lb_convert_struct_index(lbModule *m, Type *t, i32 index) {
}
gb_internal LLVMTypeRef lb_type_padding_filler(lbModule *m, i64 padding, i64 padding_align) {
MUTEX_GUARD(&m->pad_types_mutex);
if (padding % padding_align == 0) {
for (auto pd : m->pad_types) {
if (pd.padding == padding && pd.padding_align == padding_align) {
return pd.type;
}
}
} else {
for (auto pd : m->pad_types) {
if (pd.padding == padding && pd.padding_align == 1) {
return pd.type;
}
}
}
// NOTE(bill): limit to `[N x u64]` to prevent ABI issues
padding_align = gb_clamp(padding_align, 1, 8);
if (padding % padding_align == 0) {
@@ -1016,13 +1031,19 @@ gb_internal LLVMTypeRef lb_type_padding_filler(lbModule *m, i64 padding, i64 pad
}
GB_ASSERT_MSG(elem != nullptr, "Invalid lb_type_padding_filler padding and padding_align: %lld", padding_align);
LLVMTypeRef type = nullptr;
if (len != 1) {
return llvm_array_type(elem, len);
type = llvm_array_type(elem, len);
} else {
return elem;
type = elem;
}
array_add(&m->pad_types, lbPadType{padding, padding_align, type});
return type;
} else {
return llvm_array_type(lb_type(m, t_u8), padding);
LLVMTypeRef type = llvm_array_type(lb_type(m, t_u8), padding);
array_add(&m->pad_types, lbPadType{padding, 1, type});
return type;
}
}