From f5334f24213805f5c2c3a35372c581f34ab255dc Mon Sep 17 00:00:00 2001 From: Eric Christopher Date: Thu, 20 Feb 2014 00:54:40 +0000 Subject: Add support for hashing DW_FORM_sdata and a small testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201747 91177308-0d34-0410-b5e6-96231b3b80d8 --- unittests/CodeGen/DIEHashTest.cpp | 47 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) (limited to 'unittests/CodeGen') diff --git a/unittests/CodeGen/DIEHashTest.cpp b/unittests/CodeGen/DIEHashTest.cpp index 43294df6d3..b6d091987a 100644 --- a/unittests/CodeGen/DIEHashTest.cpp +++ b/unittests/CodeGen/DIEHashTest.cpp @@ -549,4 +549,51 @@ TEST(DIEHashTest, MemberFuncFlag) { // The exact same hash GCC produces for this DIE. ASSERT_EQ(0x8f78211ddce3df10ULL, MD5Res); } + +// Derived from: +// struct A { +// const static float PI = 3.14f; +// }; +// A a; +TEST(DIEHashTest, MemberBlock) { + DIE A(dwarf::DW_TAG_structure_type); + DIEInteger One(1); + DIEString AStr(&One, "A"); + A.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &AStr); + A.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One); + A.addValue(dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, &One); + A.addValue(dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, &One); + + DIEInteger Four(4); + DIEInteger Five(5); + DIEString FStr(&One, "int"); + DIE *IntTyDIE = new DIE(dwarf::DW_TAG_base_type); + IntTyDIE->addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Four); + IntTyDIE->addValue(dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, &Five); + IntTyDIE->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FStr); + + DIEEntry IntTy(IntTyDIE); + DIE *PITyDIE = new DIE(dwarf::DW_TAG_const_type); + PITyDIE->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &IntTy); + + DIEEntry PITy(PITyDIE); + DIE *PI = new DIE(dwarf::DW_TAG_member); + DIEString PIStr(&One, "PI"); + DIEInteger Two(2); + DIEInteger NegThree(-3); + PI->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &PIStr); + PI->addValue(dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, &One); + PI->addValue(dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, &Two); + PI->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &PITy); + PI->addValue(dwarf::DW_AT_external, dwarf::DW_FORM_flag_present, &One); + PI->addValue(dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present, &One); + PI->addValue(dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata, &NegThree); + + A.addChild(PI); + + A.dump(); + + uint64_t MD5Res = DIEHash().computeTypeSignature(A); + ASSERT_EQ(0x9a216000dd3788a7ULL, MD5Res); +} } -- cgit v1.2.3