From 31dd38ed2f67d5fcab6a7b27c26bd352c6cc93fd Mon Sep 17 00:00:00 2001 From: Eric Christopher Date: Thu, 20 Feb 2014 02:50:45 +0000 Subject: Add support for hashing attributes with DW_FORM_block. This required passing down an AsmPrinter instance so we could compute the size of the block which could be target specific. All of the test cases in the unittest don't have any target specific data so we can use a NULL AsmPrinter there. This also depends upon block data being added as integers. We can now hash the entire fission-cu.ll compile unit so turn the flag on there with the hash value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201752 91177308-0d34-0410-b5e6-96231b3b80d8 --- unittests/CodeGen/DIEHashTest.cpp | 55 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) (limited to 'unittests') diff --git a/unittests/CodeGen/DIEHashTest.cpp b/unittests/CodeGen/DIEHashTest.cpp index e613181996..c874cef924 100644 --- a/unittests/CodeGen/DIEHashTest.cpp +++ b/unittests/CodeGen/DIEHashTest.cpp @@ -594,4 +594,59 @@ TEST(DIEHashTest, MemberSdata) { uint64_t MD5Res = DIEHash().computeTypeSignature(A); ASSERT_EQ(0x9a216000dd3788a7ULL, MD5Res); } + +// Derived from: +// struct A { +// const static float PI = 3.14; +// }; +// 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); + DIEString FStr(&One, "float"); + DIE *FloatTyDIE = new DIE(dwarf::DW_TAG_base_type); + FloatTyDIE->addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Four); + FloatTyDIE->addValue(dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, &Four); + FloatTyDIE->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FStr); + + DIEEntry FloatTy(FloatTyDIE); + DIE *PITyDIE = new DIE(dwarf::DW_TAG_const_type); + PITyDIE->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &FloatTy); + + DIEEntry PITy(PITyDIE); + DIE *PI = new DIE(dwarf::DW_TAG_member); + DIEString PIStr(&One, "PI"); + DIEInteger Two(2); + 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); + + DIEBlock *PIBlock = new DIEBlock(); + DIEInteger Blk1(0xc3); + DIEInteger Blk2(0xf5); + DIEInteger Blk3(0x48); + DIEInteger Blk4(0x40); + + PIBlock->addValue((dwarf::Attribute)0, dwarf::DW_FORM_data1, &Blk1); + PIBlock->addValue((dwarf::Attribute)0, dwarf::DW_FORM_data1, &Blk2); + PIBlock->addValue((dwarf::Attribute)0, dwarf::DW_FORM_data1, &Blk3); + PIBlock->addValue((dwarf::Attribute)0, dwarf::DW_FORM_data1, &Blk4); + + PI->addValue(dwarf::DW_AT_const_value, dwarf::DW_FORM_block1, PIBlock); + + A.addChild(PI); + + uint64_t MD5Res = DIEHash().computeTypeSignature(A); + ASSERT_EQ(0x493af53ad3d3f651ULL, MD5Res); +} } -- cgit v1.2.3