From 278199f615d9f9e224e5033b9558c6ed974cbf37 Mon Sep 17 00:00:00 2001 From: George Burgess IV Date: Tue, 12 Apr 2016 01:05:35 +0000 Subject: Add the allocsize attribute to LLVM. `allocsize` is a function attribute that allows users to request that LLVM treat arbitrary functions as allocation functions. This patch makes LLVM accept the `allocsize` attribute, and makes `@llvm.objectsize` recognize said attribute. The review for this was split into two patches for ease of reviewing: D18974 and D14933. As promised on the revisions, I'm landing both patches as a single commit. Differential Revision: http://reviews.llvm.org/D14933 llvm-svn: 266032 --- llvm/lib/Bitcode/Reader/BitcodeReader.cpp | 4 ++++ 1 file changed, 4 insertions(+) (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 b8ebe8f..321c775 100644 --- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp +++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp @@ -1288,6 +1288,8 @@ static Attribute::AttrKind getAttrFromCode(uint64_t Code) { return Attribute::Dereferenceable; case bitc::ATTR_KIND_DEREFERENCEABLE_OR_NULL: return Attribute::DereferenceableOrNull; + case bitc::ATTR_KIND_ALLOC_SIZE: + return Attribute::AllocSize; case bitc::ATTR_KIND_NO_RED_ZONE: return Attribute::NoRedZone; case bitc::ATTR_KIND_NO_RETURN: @@ -1412,6 +1414,8 @@ std::error_code BitcodeReader::parseAttributeGroupBlock() { B.addDereferenceableAttr(Record[++i]); else if (Kind == Attribute::DereferenceableOrNull) B.addDereferenceableOrNullAttr(Record[++i]); + else if (Kind == Attribute::AllocSize) + B.addAllocSizeAttrFromRawRepr(Record[++i]); } else { // String attribute assert((Record[i] == 3 || Record[i] == 4) && "Invalid attribute group entry"); -- cgit v1.1