Correct static map get; make get take a pointer to simplify compiler internals

1 files changed, 32 insertions, 26 deletions

diff --git a/src/llvm_backend.cpp b/src/llvm_backend.cpp
index e12a4c016..c313bc825 100644
--- a/src/llvm_backend.cpp
+++ b/src/llvm_backend.cpp
@@ -140,7 +140,7 @@ lbContextData *lb_push_context_onto_stack(lbProcedure *p, lbAddr ctx) {
 }
 
 
-lbValue lb_get_equal_proc_for_type(lbModule *m, Type *type) {
+lbValue lb_equal_proc_for_type(lbModule *m, Type *type) {
 	type = base_type(type);
 	GB_ASSERT(is_type_comparable(type));
 
@@ -296,7 +296,7 @@ lbValue lb_simple_compare_hash(lbProcedure *p, Type *type, lbValue data, lbValue
 	return lb_emit_runtime_call(p, "default_hasher_n", args);
 }
 
-lbValue lb_get_hasher_proc_for_type(lbModule *m, Type *type) {
+lbValue lb_hasher_proc_for_type(lbModule *m, Type *type) {
 	type = core_type(type);
 	GB_ASSERT_MSG(is_type_valid_for_keys(type), "%s", type_to_string(type));
 
@@ -343,7 +343,7 @@ lbValue lb_get_hasher_proc_for_type(lbModule *m, Type *type) {
 			GB_ASSERT(type->Struct.offsets != nullptr);
 			i64 offset = type->Struct.offsets[i];
 			Entity *field = type->Struct.fields[i];
-			lbValue field_hasher = lb_get_hasher_proc_for_type(m, field->type);
+			lbValue field_hasher = lb_hasher_proc_for_type(m, field->type);
 			lbValue ptr = lb_emit_ptr_offset(p, data, lb_const_int(m, t_uintptr, offset));
 
 			args[0] = ptr;
@@ -356,7 +356,7 @@ lbValue lb_get_hasher_proc_for_type(lbModule *m, Type *type) {
 
 		if (is_type_union_maybe_pointer(type)) {
 			Type *v = type->Union.variants[0];
-			lbValue variant_hasher = lb_get_hasher_proc_for_type(m, v);
+			lbValue variant_hasher = lb_hasher_proc_for_type(m, v);
 
 			args[0] = data;
 			args[1] = seed;
@@ -379,7 +379,7 @@ lbValue lb_get_hasher_proc_for_type(lbModule *m, Type *type) {
 			Type *v = type->Union.variants[i];
 			lbValue case_tag = lb_const_union_tag(p->module, type, v);
 
-			lbValue variant_hasher = lb_get_hasher_proc_for_type(m, v);
+			lbValue variant_hasher = lb_hasher_proc_for_type(m, v);
 
 			args[0] = data;
 			args[1] = seed;
@@ -397,7 +397,7 @@ lbValue lb_get_hasher_proc_for_type(lbModule *m, Type *type) {
 		lb_addr_store(p, pres, seed);
 
 		auto args = array_make<lbValue>(permanent_allocator(), 2);
-		lbValue elem_hasher = lb_get_hasher_proc_for_type(m, type->Array.elem);
+		lbValue elem_hasher = lb_hasher_proc_for_type(m, type->Array.elem);
 
 		auto loop_data = lb_loop_start(p, cast(isize)type->Array.count, t_i32);
 
@@ -418,7 +418,7 @@ lbValue lb_get_hasher_proc_for_type(lbModule *m, Type *type) {
 		lb_addr_store(p, res, seed);
 
 		auto args = array_make<lbValue>(permanent_allocator(), 2);
-		lbValue elem_hasher = lb_get_hasher_proc_for_type(m, type->EnumeratedArray.elem);
+		lbValue elem_hasher = lb_hasher_proc_for_type(m, type->EnumeratedArray.elem);
 
 		auto loop_data = lb_loop_start(p, cast(isize)type->EnumeratedArray.count, t_i32);
 
@@ -454,7 +454,7 @@ lbValue lb_get_hasher_proc_for_type(lbModule *m, Type *type) {
 }
 
 
-lbValue lb_get_map_get_proc_for_type(lbModule *m, Type *type) {
+lbValue lb_map_get_proc_for_type(lbModule *m, Type *type) {
 	GB_ASSERT(build_context.use_static_map_calls);
 	type = base_type(type);
 	GB_ASSERT(type->kind == Type_Map);
@@ -468,7 +468,7 @@ lbValue lb_get_map_get_proc_for_type(lbModule *m, Type *type) {
 	static u32 proc_index = 0;
 
 	char buf[32] = {};
-	isize n = gb_snprintf(buf, 32, "__$map_get%u", ++proc_index);
+	isize n = gb_snprintf(buf, 32, "__$map_get_%u", ++proc_index);
 	char *str = gb_alloc_str_len(permanent_allocator(), buf, n-1);
 	String proc_name = make_string_c(str);
 
@@ -489,9 +489,23 @@ lbValue lb_get_map_get_proc_for_type(lbModule *m, Type *type) {
 	LLVMAddAttributeAtIndex(p->value, 1+1, nonnull_attr);
 	LLVMAddAttributeAtIndex(p->value, 1+1, noalias_attr);
 
+	lbBlock *loop_block = lb_create_block(p, "loop");
+	lbBlock *hash_block = lb_create_block(p, "hash");
+	lbBlock *probe_block = lb_create_block(p, "probe");
+	lbBlock *increment_block = lb_create_block(p, "increment");
+	lbBlock *hash_compare_block = lb_create_block(p, "hash_compare");
+	lbBlock *key_compare_block = lb_create_block(p, "key_compare");
+	lbBlock *value_block = lb_create_block(p, "value");
+	lbBlock *nil_block = lb_create_block(p, "nil");
+
 	map_ptr = lb_emit_conv(p, map_ptr, t_raw_map_ptr);
 	lbValue map = lb_emit_load(p, map_ptr);
 
+	lbValue length = lb_map_len(p, map);
+
+	lb_emit_if(p, lb_emit_comp(p, Token_CmpEq, length, lb_const_nil(m, t_int)), nil_block, hash_block);
+	lb_start_block(p, hash_block);
+
 	key_ptr = lb_emit_conv(p, key_ptr, alloc_type_pointer(type->Map.key));
 	lbValue key = lb_emit_load(p, key_ptr);
 
@@ -521,16 +535,8 @@ lbValue lb_get_map_get_proc_for_type(lbModule *m, Type *type) {
 	// lbValue res =
 	// LLVMBuildRet(p->builder, res.value);
 
-	lbBlock *loop = lb_create_block(p, "loop");
-	lbBlock *probe_block = lb_create_block(p, "probe");
-	lbBlock *increment_block = lb_create_block(p, "increment");
-	lbBlock *hash_compare_block = lb_create_block(p, "hash_compare");
-	lbBlock *key_compare_block = lb_create_block(p, "key_compare");
-	lbBlock *value_block = lb_create_block(p, "value");
-	lbBlock *nil_block = lb_create_block(p, "nil");
-
-	lb_emit_jump(p, loop);
-	lb_start_block(p, loop);
+	lb_emit_jump(p, loop_block);
+	lb_start_block(p, loop_block);
 
 	lbValue element_hash = lb_emit_load(p, lb_emit_ptr_offset(p, hs, lb_addr_load(p, pos)));
 	{
@@ -577,7 +583,7 @@ lbValue lb_get_map_get_proc_for_type(lbModule *m, Type *type) {
 		lb_addr_store(p, pos, pp);
 		lb_emit_increment(p, distance.addr);
 	}
-	lb_emit_jump(p, loop);
+	lb_emit_jump(p, loop_block);
 
 	lb_start_block(p, nil_block);
 	{
@@ -678,8 +684,8 @@ lbValue lb_gen_map_info_ptr(lbModule *m, Type *map_type) {
 	LLVMValueRef const_values[4] = {};
 	const_values[0] = key_cell_info;
 	const_values[1] = value_cell_info;
-	const_values[2] = lb_get_hasher_proc_for_type(m, map_type->Map.key).value;
-	const_values[3] = lb_get_equal_proc_for_type(m, map_type->Map.key).value;
+	const_values[2] = lb_hasher_proc_for_type(m, map_type->Map.key).value;
+	const_values[3] = lb_equal_proc_for_type(m, map_type->Map.key).value;
 
 	LLVMValueRef llvm_res = llvm_const_named_struct(m, t_map_info, const_values, gb_count_of(const_values));
 	lbValue res = {llvm_res, t_map_info};
@@ -746,7 +752,7 @@ lbValue lb_gen_map_key_hash(lbProcedure *p, lbValue key, Type *key_type, lbValue
 
 	lbValue hashed_key = lb_const_hash(p->module, key, key_type);
 	if (hashed_key.value == nullptr) {
-		lbValue hasher = lb_get_hasher_proc_for_type(p->module, key_type);
+		lbValue hasher = lb_hasher_proc_for_type(p->module, key_type);
 
 		auto args = array_make<lbValue>(permanent_allocator(), 2);
 		args[0] = key_ptr;
@@ -767,16 +773,16 @@ lbValue lb_internal_dynamic_map_get_ptr(lbProcedure *p, lbValue const &map_ptr,
 	key_ptr = lb_emit_conv(p, key_ptr, t_rawptr);
 
 	if (build_context.use_static_map_calls) {
-		lbValue map_get_proc = lb_get_map_get_proc_for_type(p->module, map_type);
+		lbValue map_get_proc = lb_map_get_proc_for_type(p->module, map_type);
 
 		auto args = array_make<lbValue>(permanent_allocator(), 2);
-		args[0] = map_ptr;
+		args[0] = lb_emit_conv(p, map_ptr, t_rawptr);
 		args[1] = key_ptr;
 
 		ptr = lb_emit_call(p, map_get_proc, args);
 	} else {
 		auto args = array_make<lbValue>(permanent_allocator(), 3);
-		args[0] = lb_emit_transmute(p, lb_emit_load(p, map_ptr), t_raw_map);
+		args[0] = lb_emit_transmute(p, map_ptr, t_raw_map_ptr);
 		args[1] = lb_gen_map_info_ptr(p->module, map_type);
 		args[2] = key_ptr;