Add writeonly IR attribute
Summary:
This complements the earlier addition of IntrWriteMem and IntrWriteArgMem
LLVM intrinsic properties, see D18291.
Also start using the attribute for memset, memcpy, and memmove intrinsics,
and remove their special-casing in BasicAliasAnalysis.
Reviewers: reames, joker.eph
Subscribers: joker.eph, llvm-commits
Differential Revision: http://reviews.llvm.org/D18714
llvm-svn: 274485
diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
index d3174fd..1ee7b7b 100644
--- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -667,6 +667,8 @@
return bitc::ATTR_KIND_SWIFT_SELF;
case Attribute::UWTable:
return bitc::ATTR_KIND_UW_TABLE;
+ case Attribute::WriteOnly:
+ return bitc::ATTR_KIND_WRITEONLY;
case Attribute::ZExt:
return bitc::ATTR_KIND_Z_EXT;
case Attribute::EndAttrKinds: