MS ABI: Simplify MangleByte

The delta between '\xe1' and '\xc1' is equivalent to the one between 'a'
and 'A'.  This allows us to reuse the computation between '\xe1' and
'\xfa' for the '\xc1' to '\xda' case.

No functionality change.

llvm-svn: 205128

1 files changed, 2 insertions, 3 deletions

diff --git a/clang/lib/AST/MicrosoftMangle.cpp b/clang/lib/AST/MicrosoftMangle.cpp
index 9dfd2af8bb6..5510f96596f 100644
--- a/clang/lib/AST/MicrosoftMangle.cpp
+++ b/clang/lib/AST/MicrosoftMangle.cpp
@@ -2421,9 +2421,8 @@ void MicrosoftMangleContextImpl::mangleStringLiteral(const StringLiteral *SL,
     if ((Byte >= 'a' && Byte <= 'z') || (Byte >= 'A' && Byte <= 'Z') ||
         (Byte >= '0' && Byte <= '9') || Byte == '_' || Byte == '$') {
       Mangler.getStream() << Byte;
-    } else if (Byte >= '\xe1' && Byte <= '\xfa') {
-      Mangler.getStream() << '?' << static_cast<char>('a' + (Byte - '\xe1'));
-    } else if (Byte >= '\xc1' && Byte <= '\xda') {
+    } else if ((Byte >= '\xe1' && Byte <= '\xfa') ||
+               (Byte >= '\xc1' && Byte <= '\xda')) {
       Mangler.getStream() << '?' << static_cast<char>('A' + (Byte - '\xc1'));
     } else {
       switch (Byte) {