r256134 - [Cygwin] Enable TLS as emutls.

[NAKAMURA Takumi via cfe-commits]

I will remove it a few days after, when I made sure it were not
required any more. I have a commit for this in my local branch.

2015-12-21 11:44 GMT+09:00 Rafael Espíndola <rafael.espindola at gmail.com>:
> Can we delete
>
>  config.available_features.add('tls')
>
> now?
>
> On 20 December 2015 at 21:37, NAKAMURA Takumi via cfe-commits
> <cfe-commits at lists.llvm.org> wrote:
>> 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
>>
>>
>>
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