motiejus/zig
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analyze: clean up type checking

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This commit is contained in:
Andrew Kelley
2015-12-15 18:21:59 -07:00
parent 431d8f946f
commit 28c5a8f2ca
5 changed files with 121 additions and 147 deletions
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20
src/codegen.cpp
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@@ -130,7 +130,8 @@ static LLVMValueRef find_or_create_string(CodeGen *g, Buf *str, bool c) {
}
static TypeTableEntry *get_expr_type(AstNode *node) {
return node->codegen_node->expr_node.type_entry;
TypeTableEntry *cast_type = node->codegen_node->expr_node.implicit_cast.type;
return cast_type ? cast_type : node->codegen_node->expr_node.type_entry;
}
static LLVMValueRef gen_fn_call_expr(CodeGen *g, AstNode *node) {
@@ -288,8 +289,10 @@ static LLVMValueRef gen_bare_cast(CodeGen *g, AstNode *node, LLVMValueRef expr_v
} else if (actual_type->size_in_bits < wanted_type->size_in_bits) {
if (actual_type->data.integral.is_signed && wanted_type->data.integral.is_signed) {
return LLVMBuildSExt(g->builder, expr_val, wanted_type->type_ref, "");
} else if (!actual_type->data.integral.is_signed && !wanted_type->data.integral.is_signed) {
return LLVMBuildZExt(g->builder, expr_val, wanted_type->type_ref, "");
} else {
zig_panic("TODO gen_cast_expr widen unsigned");
zig_panic("TODO gen_cast_expr mixing of signness");
}
} else {
assert(actual_type->size_in_bits > wanted_type->size_in_bits);
@@ -1328,6 +1331,19 @@ static void define_builtin_types(CodeGen *g) {
g->type_table.put(&entry->name, entry);
g->builtin_types.entry_u8 = entry;
}
{
TypeTableEntry *entry = new_type_table_entry(TypeTableEntryIdInt);
entry->type_ref = LLVMInt32Type();
buf_init_from_str(&entry->name, "u32");
entry->size_in_bits = 32;
entry->align_in_bits = 32;
entry->data.integral.is_signed = false;
entry->di_type = LLVMZigCreateDebugBasicType(g->dbuilder, buf_ptr(&entry->name),
entry->size_in_bits, entry->align_in_bits,
LLVMZigEncoding_DW_ATE_unsigned());
g->type_table.put(&entry->name, entry);
g->builtin_types.entry_u32 = entry;
}
{
TypeTableEntry *entry = new_type_table_entry(TypeTableEntryIdInt);
entry->type_ref = LLVMInt64Type();