1 //===- llvm/unittest/DebugInfo/DWARFFormValueTest.cpp ---------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 #include "llvm/DebugInfo/DWARFFormValue.h"
11 #include "llvm/Support/Dwarf.h"
12 #include "gtest/gtest.h"
13 using namespace llvm;
14 using namespace dwarf;
15
16 namespace {
17
TEST(DWARFFormValue,FixedFormSizes)18 TEST(DWARFFormValue, FixedFormSizes) {
19 // Size of DW_FORM_addr and DW_FORM_ref_addr are equal in DWARF2,
20 // DW_FORM_ref_addr is always 4 bytes in DWARF32 starting from DWARF3.
21 ArrayRef<uint8_t> sizes = DWARFFormValue::getFixedFormSizes(4, 2);
22 EXPECT_EQ(sizes[DW_FORM_addr], sizes[DW_FORM_ref_addr]);
23 sizes = DWARFFormValue::getFixedFormSizes(8, 2);
24 EXPECT_EQ(sizes[DW_FORM_addr], sizes[DW_FORM_ref_addr]);
25 sizes = DWARFFormValue::getFixedFormSizes(8, 3);
26 EXPECT_EQ(4, sizes[DW_FORM_ref_addr]);
27 // Check that we don't have fixed form sizes for weird address sizes.
28 EXPECT_EQ(0U, DWARFFormValue::getFixedFormSizes(16, 2).size());
29 }
30
isFormClass(uint16_t Form,DWARFFormValue::FormClass FC)31 bool isFormClass(uint16_t Form, DWARFFormValue::FormClass FC) {
32 return DWARFFormValue(Form).isFormClass(FC);
33 }
34
TEST(DWARFFormValue,FormClass)35 TEST(DWARFFormValue, FormClass) {
36 EXPECT_TRUE(isFormClass(DW_FORM_addr, DWARFFormValue::FC_Address));
37 EXPECT_FALSE(isFormClass(DW_FORM_data8, DWARFFormValue::FC_Address));
38 EXPECT_TRUE(isFormClass(DW_FORM_data8, DWARFFormValue::FC_Constant));
39 EXPECT_TRUE(isFormClass(DW_FORM_data8, DWARFFormValue::FC_SectionOffset));
40 EXPECT_TRUE(
41 isFormClass(DW_FORM_sec_offset, DWARFFormValue::FC_SectionOffset));
42 EXPECT_TRUE(isFormClass(DW_FORM_GNU_str_index, DWARFFormValue::FC_String));
43 EXPECT_TRUE(isFormClass(DW_FORM_GNU_addr_index, DWARFFormValue::FC_Address));
44 EXPECT_FALSE(isFormClass(DW_FORM_ref_addr, DWARFFormValue::FC_Address));
45 EXPECT_TRUE(isFormClass(DW_FORM_ref_addr, DWARFFormValue::FC_Reference));
46 EXPECT_TRUE(isFormClass(DW_FORM_ref_sig8, DWARFFormValue::FC_Reference));
47 }
48
49 } // end anonymous namespace
50