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IR: pass passSliceOfEmptyStructToFn test

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This commit is contained in:
Andrew Kelley
2016-12-28 01:15:09 -05:00
parent 15f843e70f
commit 25a5fc32fe
8 changed files with 255 additions and 97 deletions
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14
src/codegen.cpp
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@@ -2404,6 +2404,7 @@ static void ir_render(CodeGen *g, FnTableEntry *fn_entry) {
static LLVMValueRef gen_const_val(CodeGen *g, ConstExprValue *const_val) {
TypeTableEntry *canon_type = get_underlying_type(const_val->type);
assert(!canon_type->zero_bits);
switch (const_val->special) {
case ConstValSpecialRuntime:
@@ -2557,6 +2558,14 @@ static LLVMValueRef gen_const_val(CodeGen *g, ConstExprValue *const_val) {
} else {
ConstExprValue *array_const_val = const_val->data.x_ptr.base_ptr;
assert(array_const_val->type->id == TypeTableEntryIdArray);
if (array_const_val->type->zero_bits) {
// make this a null pointer
TypeTableEntry *usize_type = g->builtin_types.entry_usize;
const_val->llvm_value = LLVMConstIntToPtr(LLVMConstNull(usize_type->type_ref),
const_val->type->type_ref);
render_const_val_global(g, const_val);
return const_val->llvm_value;
}
render_const_val(g, array_const_val);
render_const_val_global(g, array_const_val);
TypeTableEntry *usize = g->builtin_types.entry_usize;
@@ -3369,6 +3378,7 @@ static void define_builtin_types(CodeGen *g) {
}
}
entry->data.enumeration.complete = true;
entry->data.enumeration.zero_bits_known = true;
TypeTableEntry *tag_type_entry = get_smallest_unsigned_int_type(g, field_count);
entry->data.enumeration.tag_type = tag_type_entry;
@@ -3402,6 +3412,7 @@ static void define_builtin_types(CodeGen *g) {
}
}
entry->data.enumeration.complete = true;
entry->data.enumeration.zero_bits_known = true;
TypeTableEntry *tag_type_entry = get_smallest_unsigned_int_type(g, field_count);
entry->data.enumeration.tag_type = tag_type_entry;
@@ -3429,6 +3440,7 @@ static void define_builtin_types(CodeGen *g) {
}
}
entry->data.enumeration.complete = true;
entry->data.enumeration.zero_bits_known = true;
TypeTableEntry *tag_type_entry = get_smallest_unsigned_int_type(g, field_count);
entry->data.enumeration.tag_type = tag_type_entry;
@@ -3456,6 +3468,7 @@ static void define_builtin_types(CodeGen *g) {
}
}
entry->data.enumeration.complete = true;
entry->data.enumeration.zero_bits_known = true;
TypeTableEntry *tag_type_entry = get_smallest_unsigned_int_type(g, field_count);
entry->data.enumeration.tag_type = tag_type_entry;
@@ -3491,6 +3504,7 @@ static void define_builtin_types(CodeGen *g) {
entry->data.enumeration.fields[5].type_entry = g->builtin_types.entry_void;
entry->data.enumeration.complete = true;
entry->data.enumeration.zero_bits_known = true;
TypeTableEntry *tag_type_entry = get_smallest_unsigned_int_type(g, field_count);
entry->data.enumeration.tag_type = tag_type_entry;