r256134 - [Cygwin] Enable TLS as emutls.

[NAKAMURA Takumi via cfe-commits]

Author: chapuni
Date: Sun Dec 20 20:37:23 2015
New Revision: 256134

URL: http://llvm.org/viewvc/llvm-project?rev=256134&view=rev
Log:
[Cygwin] Enable TLS as emutls.

It resolves clang selfhosting with std::once() for Cygwin.

FIXME: It may be EmulatedTLS-generic also for X86-Android.
FIXME: Pass EmulatedTLS to LLVM CodeGen from Clang with -femulated-tls.

Modified:
    cfe/trunk/lib/Basic/Targets.cpp
    cfe/trunk/test/CXX/concepts-ts/dcl.dcl/dcl.spec/dcl.spec.concept/p2.cpp
    cfe/trunk/test/OpenMP/parallel_copyin_codegen.cpp
    cfe/trunk/test/PCH/chain-openmp-threadprivate.cpp

Modified: cfe/trunk/lib/Basic/Targets.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets.cpp?rev=256134&r1=256133&r2=256134&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/Targets.cpp (original)
+++ cfe/trunk/lib/Basic/Targets.cpp Sun Dec 20 20:37:23 2015
@@ -3834,7 +3834,6 @@ class CygwinX86_32TargetInfo : public X8
 public:
   CygwinX86_32TargetInfo(const llvm::Triple &Triple)
       : X86_32TargetInfo(Triple) {
-    TLSSupported = false;
     WCharType = UnsignedShort;
     DoubleAlign = LongLongAlign = 64;
     DataLayoutString = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32";

Modified: cfe/trunk/test/CXX/concepts-ts/dcl.dcl/dcl.spec/dcl.spec.concept/p2.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CXX/concepts-ts/dcl.dcl/dcl.spec/dcl.spec.concept/p2.cpp?rev=256134&r1=256133&r2=256134&view=diff
==============================================================================
--- cfe/trunk/test/CXX/concepts-ts/dcl.dcl/dcl.spec/dcl.spec.concept/p2.cpp (original)
+++ cfe/trunk/test/CXX/concepts-ts/dcl.dcl/dcl.spec/dcl.spec.concept/p2.cpp Sun Dec 20 20:37:23 2015
@@ -1,5 +1,4 @@
 // RUN:  %clang_cc1 -std=c++14 -fconcepts-ts -x c++ -verify %s
-// REQUIRES: tls
 
 template<typename T> concept thread_local bool VCTL = true; // expected-error {{variable concept cannot be declared 'thread_local'}}
 

Modified: cfe/trunk/test/OpenMP/parallel_copyin_codegen.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/parallel_copyin_codegen.cpp?rev=256134&r1=256133&r2=256134&view=diff
==============================================================================
--- cfe/trunk/test/OpenMP/parallel_copyin_codegen.cpp (original)
+++ cfe/trunk/test/OpenMP/parallel_copyin_codegen.cpp Sun Dec 20 20:37:23 2015
@@ -11,7 +11,6 @@
 // RUN: %clang_cc1 -verify -fopenmp -x c++ -std=c++11 -DLAMBDA -triple %itanium_abi_triple -emit-llvm %s -o - | FileCheck -check-prefix=TLS-LAMBDA %s
 // RUN: %clang_cc1 -verify -fopenmp -x c++ -fblocks -DBLOCKS -triple %itanium_abi_triple -emit-llvm %s -o - | FileCheck -check-prefix=TLS-BLOCKS %s
 // RUN: %clang_cc1 -verify -fopenmp -x c++ -std=c++11 -DARRAY -triple x86_64-linux-gnu -emit-llvm %s -o - | FileCheck -check-prefix=TLS-ARRAY %s
-// REQUIRES: tls
 // expected-no-diagnostics
 #ifndef ARRAY
 #ifndef HEADER

Modified: cfe/trunk/test/PCH/chain-openmp-threadprivate.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/PCH/chain-openmp-threadprivate.cpp?rev=256134&r1=256133&r2=256134&view=diff
==============================================================================
--- cfe/trunk/test/PCH/chain-openmp-threadprivate.cpp (original)
+++ cfe/trunk/test/PCH/chain-openmp-threadprivate.cpp Sun Dec 20 20:37:23 2015
@@ -9,8 +9,6 @@
 // RUN: %clang_cc1 -fopenmp -emit-llvm -chain-include %s -chain-include %s %s -o - | FileCheck %s -check-prefix=CHECK-TLS-1
 // RUN: %clang_cc1 -fopenmp -emit-llvm -chain-include %s -chain-include %s %s -o - | FileCheck %s -check-prefix=CHECK-TLS-2
 
-// REQUIRES: tls
-
 #if !defined(PASS1)
 #define PASS1