Extend 'readonly' and 'readnone' to work on function arguments as well as
functions. Make the function attributes pass add it to known library functions
and when it can deduce it.
llvm-svn: 185735
diff --git a/llvm/lib/IR/Attributes.cpp b/llvm/lib/IR/Attributes.cpp
index 2160ea2..59da815 100644
--- a/llvm/lib/IR/Attributes.cpp
+++ b/llvm/lib/IR/Attributes.cpp
@@ -1157,6 +1157,8 @@
.addAttribute(Attribute::Nest)
.addAttribute(Attribute::NoAlias)
.addAttribute(Attribute::NoCapture)
+ .addAttribute(Attribute::ReadNone)
+ .addAttribute(Attribute::ReadOnly)
.addAttribute(Attribute::StructRet);
return AttributeSet::get(Ty->getContext(), Index, Incompatible);