[PATCH] D23792: IR: Properly handle escape characters in Attribute::getAsString()
Honggyu Kim via llvm-commits
llvm-commits at lists.llvm.org
Thu Sep 1 04:52:29 PDT 2016
This revision was automatically updated to reflect the committed changes.
Closed by commit rL280357: [IR] Properly handle escape characters in Attribute::getAsString() (authored by honggyu.kim).
Changed prior to commit:
https://reviews.llvm.org/D23792?vs=69468&id=69990#toc
Repository:
rL LLVM
https://reviews.llvm.org/D23792
Files:
llvm/trunk/include/llvm/ADT/StringExtras.h
llvm/trunk/lib/IR/AsmWriter.cpp
llvm/trunk/lib/IR/Attributes.cpp
Index: llvm/trunk/include/llvm/ADT/StringExtras.h
===================================================================
--- llvm/trunk/include/llvm/ADT/StringExtras.h
+++ llvm/trunk/include/llvm/ADT/StringExtras.h
@@ -19,6 +19,7 @@
#include <iterator>
namespace llvm {
+class raw_ostream;
template<typename T> class SmallVectorImpl;
/// hexdigit - Return the hexadecimal character for the
@@ -150,6 +151,10 @@
}
}
+/// PrintEscapedString - Print each character of the specified string, escaping
+/// it if it is not printable or if it is an escape char.
+void PrintEscapedString(StringRef Name, raw_ostream &Out);
+
template <typename IteratorT>
inline std::string join_impl(IteratorT Begin, IteratorT End,
StringRef Separator, std::input_iterator_tag) {
Index: llvm/trunk/lib/IR/Attributes.cpp
===================================================================
--- llvm/trunk/lib/IR/Attributes.cpp
+++ llvm/trunk/lib/IR/Attributes.cpp
@@ -381,10 +381,18 @@
std::string Result;
Result += (Twine('"') + getKindAsString() + Twine('"')).str();
- StringRef Val = pImpl->getValueAsString();
- if (Val.empty()) return Result;
+ std::string AttrVal = pImpl->getValueAsString();
+ if (AttrVal.empty()) return Result;
- Result += ("=\"" + Val + Twine('"')).str();
+ // Since some attribute strings contain special characters that cannot be
+ // printable, those have to be escaped to make the attribute value printable
+ // as is. e.g. "\01__gnu_mcount_nc"
+ {
+ raw_string_ostream OS(Result);
+ OS << "=\"";
+ PrintEscapedString(AttrVal, OS);
+ OS << "\"";
+ }
return Result;
}
Index: llvm/trunk/lib/IR/AsmWriter.cpp
===================================================================
--- llvm/trunk/lib/IR/AsmWriter.cpp
+++ llvm/trunk/lib/IR/AsmWriter.cpp
@@ -337,9 +337,7 @@
}
}
-// PrintEscapedString - Print each character of the specified string, escaping
-// it if it is not printable or if it is an escape char.
-static void PrintEscapedString(StringRef Name, raw_ostream &Out) {
+void llvm::PrintEscapedString(StringRef Name, raw_ostream &Out) {
for (unsigned i = 0, e = Name.size(); i != e; ++i) {
unsigned char C = Name[i];
if (isprint(C) && C != '\\' && C != '"')
-------------- next part --------------
A non-text attachment was scrubbed...
Name: D23792.69990.patch
Type: text/x-patch
Size: 2306 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20160901/3b099bf5/attachment.bin>
More information about the llvm-commits
mailing list