r262030 - Basic: fix __USER_LABEL_PREFIX__ on Cygwin

[Saleem Abdulrasool via cfe-commits]

Author: compnerd
Date: Fri Feb 26 10:34:01 2016
New Revision: 262030

URL: http://llvm.org/viewvc/llvm-project?rev=262030&view=rev
Log:
Basic: fix __USER_LABEL_PREFIX__ on Cygwin

Adjust the user label prefix for cygwin x86_64.

Resolves PR26744.

Modified:
    cfe/trunk/lib/Basic/Targets.cpp
    cfe/trunk/test/Preprocessor/init.c

Modified: cfe/trunk/lib/Basic/Targets.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets.cpp?rev=262030&r1=262029&r2=262030&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/Targets.cpp (original)
+++ cfe/trunk/lib/Basic/Targets.cpp Fri Feb 26 10:34:01 2016
@@ -4226,6 +4226,7 @@ public:
       : X86_64TargetInfo(Triple) {
     TLSSupported = false;
     WCharType = UnsignedShort;
+    UserLabelPrefix = "";
   }
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override {

Modified: cfe/trunk/test/Preprocessor/init.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/init.c?rev=262030&r1=262029&r2=262030&view=diff
==============================================================================
--- cfe/trunk/test/Preprocessor/init.c (original)
+++ cfe/trunk/test/Preprocessor/init.c Fri Feb 26 10:34:01 2016
@@ -9049,3 +9049,10 @@
 // WEBASSEMBLY64-NEXT:#define __wasm64 1
 // WEBASSEMBLY64-NEXT:#define __wasm64__ 1
 // WEBASSEMBLY64-NEXT:#define __wasm__ 1
+
+// RUN: %clang_cc1 -E -dM -ffreestanding -triple i686-windows-cygnus < /dev/null | FileCheck -match-full-lines -check-prefix CYGWIN-X32 %s
+// CYGWIN-X32: #define __USER_LABEL_PREFIX__ _
+
+// RUN: %clang_cc1 -E -dM -ffreestanding -triple x86_64-windows-cygnus < /dev/null | FileCheck -match-full-lines -check-prefix CYGWIN-X64 %s
+// CYGWIN-X64: #define __USER_LABEL_PREFIX__
+