From c19f72bd83e8cb2cc31257008ee9d7797dbf3dbb Mon Sep 17 00:00:00 2001
From: Jakob Stoklund Olesen <stoklund@2pi.dk>
Date: Fri, 30 Mar 2012 21:12:52 +0000
Subject: Use SequenceToOffsetTable in emitRegisterNameString.

This allows suffix sharing in register names. (AX is a suffix of EAX).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153777 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/TableGen/SequenceToOffsetTable.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'utils/TableGen/SequenceToOffsetTable.h')

diff --git a/utils/TableGen/SequenceToOffsetTable.h b/utils/TableGen/SequenceToOffsetTable.h
index 09dccbb108..97c764e61d 100644
--- a/utils/TableGen/SequenceToOffsetTable.h
+++ b/utils/TableGen/SequenceToOffsetTable.h
@@ -21,6 +21,7 @@
 #include <algorithm>
 #include <vector>
 #include <cassert>
+#include <cctype>
 
 namespace llvm {
 
@@ -120,6 +121,19 @@ public:
   }
 };
 
+// Helper function for SequenceToOffsetTable<string>.
+static inline void printChar(raw_ostream &OS, char C) {
+  unsigned char UC(C);
+  if (isalnum(UC) || ispunct(UC)) {
+    OS << '\'';
+    if (C == '\\' || C == '\'')
+      OS << '\\';
+    OS << C << '\'';
+  } else {
+    OS << unsigned(UC);
+  }
+}
+
 } // end namespace llvm
 
 #endif
-- 
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