From aa8a847c6260483fcdbbfc20093775dd6542f8d6 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Sun, 24 Aug 2003 21:08:38 +0000 Subject: Mangle ALL letters that we do not allow, not just a few. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8140 91177308-0d34-0410-b5e6-96231b3b80d8 --- support/lib/Support/Mangler.cpp | 40 ++++++++++++++++++++++++++-------------- 1 file changed, 26 insertions(+), 14 deletions(-) (limited to 'support') diff --git a/support/lib/Support/Mangler.cpp b/support/lib/Support/Mangler.cpp index a58ca330af..d9186a9c93 100644 --- a/support/lib/Support/Mangler.cpp +++ b/support/lib/Support/Mangler.cpp @@ -9,21 +9,33 @@ #include "llvm/Type.h" #include "Support/StringExtras.h" -/// makeNameProper - We don't want identifier names with ., space, or -/// - in them, so we mangle these characters into the strings "d_", -/// "s_", and "D_", respectively. +static char HexDigit(int V) { + return V < 10 ? V+'0' : V+'A'-10; +} + +static std::string MangleLetter(unsigned char C) { + return std::string("_")+HexDigit(C >> 4) + HexDigit(C & 15) + "_"; +} + +/// makeNameProper - We don't want identifier names non-C-identifier characters +/// in them, so mangle them as appropriate. /// -std::string Mangler::makeNameProper(const std::string &x) { - std::string tmp; - for (std::string::const_iterator sI = x.begin(), sEnd = x.end(); - sI != sEnd; sI++) - switch (*sI) { - case '.': tmp += "d_"; break; - case ' ': tmp += "s_"; break; - case '-': tmp += "D_"; break; - default: tmp += *sI; - } - return tmp; +std::string Mangler::makeNameProper(const std::string &X) { + std::string Result; + + // Mangle the first letter specially, don't allow numbers... + if ((X[0] < 'a' || X[0] > 'z') && (X[0] < 'A' || X[0] > 'Z') && X[0] != '_') + Result += MangleLetter(X[0]); + else + Result += X[0]; + + for (std::string::const_iterator I = X.begin()+1, E = X.end(); I != E; ++I) + if ((*I < 'a' || *I > 'z') && (*I < 'A' || *I > 'Z') && + (*I < '0' || *I > '9') && *I != '_') + Result += MangleLetter(*I); + else + Result += *I; + return Result; } std::string Mangler::getValueName(const Value *V) { -- cgit v1.2.3