From de3d8b500f536bf091844a3fa5afa0848981f8ee Mon Sep 17 00:00:00 2001 From: Reid Kleckner Date: Wed, 8 Jun 2016 20:34:29 +0000 Subject: [DebugInfo] Add calling convention support for DWARF and CodeView Summary: Now DISubroutineType has a 'cc' field which should be a DW_CC_ enum. If it is present and non-zero, the backend will emit it as a DW_AT_calling_convention attribute. On the CodeView side, we translate it to the appropriate enum for the LF_PROCEDURE record. I added a new LLVM vendor specific enum to the list of DWARF calling conventions. DWARF does not appear to attempt to standardize these, so I assume it's OK to do this until we coordinate with GCC on how to emit vectorcall convention functions. Reviewers: dexonsmith, majnemer, aaboud, amccarth Subscribers: mehdi_amini, llvm-commits Differential Revision: http://reviews.llvm.org/D21114 llvm-svn: 272197 --- llvm/lib/Bitcode/Reader/BitcodeReader.cpp | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp') diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp index 79d358a3281..0c2895007b9 100644 --- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp +++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp @@ -2409,17 +2409,18 @@ std::error_code BitcodeReader::parseMetadata(bool ModuleLevel) { break; } case bitc::METADATA_SUBROUTINE_TYPE: { - if (Record.size() != 3) + if (Record.size() < 3 || Record.size() > 4) return error("Invalid record"); + bool IsOldTypeRefArray = Record[0] < 2; + unsigned CC = (Record.size() > 3) ? Record[3] : 0; IsDistinct = Record[0] & 0x1; - bool IsOldTypeRefArray = Record[0] < 2; Metadata *Types = getMDOrNull(Record[2]); if (LLVM_UNLIKELY(IsOldTypeRefArray)) Types = MetadataList.upgradeTypeRefArray(Types); MetadataList.assignValue( - GET_OR_DISTINCT(DISubroutineType, (Context, Record[1], Types)), + GET_OR_DISTINCT(DISubroutineType, (Context, Record[1], CC, Types)), NextMetadataNo++); break; } -- cgit v1.2.3