From: Saleem Abdulrasool <compnerd@compnerd.org>
Date: Fri, 26 Feb 2016 16:34:01 +0000 (+0000)
Subject: Basic: fix __USER_LABEL_PREFIX__ on Cygwin
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=de5983bfd6a6c846d628b069271b60554ffd33a6;p=clang

Basic: fix __USER_LABEL_PREFIX__ on Cygwin

Adjust the user label prefix for cygwin x86_64.

Resolves PR26744.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@262030 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index 46532ff916..040dedaff1 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -4226,6 +4226,7 @@ public:
       : X86_64TargetInfo(Triple) {
     TLSSupported = false;
     WCharType = UnsignedShort;
+    UserLabelPrefix = "";
   }
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override {
diff --git a/test/Preprocessor/init.c b/test/Preprocessor/init.c
index 73dc4b5460..0dd16c74fc 100644
--- a/test/Preprocessor/init.c
+++ b/test/Preprocessor/init.c
@@ -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__
+