Remove Native Client support (llvm#133661)

Remove the Native Client support now that it has finally reached end of life.

Author: brad0

clang/include/clang/Basic/TargetInfo.h

@@ -337,10 +337,6 @@ class TargetInfo : public TransferrableTargetInfo,
     /// http://infocenter.arm.com/help/topic/com.arm.doc.ihi0055a/IHI0055A_aapcs64.pdf
     AArch64ABIBuiltinVaList,
 
-    /// __builtin_va_list as defined by the PNaCl ABI:
-    /// http://www.chromium.org/nativeclient/pnacl/bitcode-abi#TOC-Machine-Types
-    PNaClABIBuiltinVaList,
-
     /// __builtin_va_list as defined by the Power ABI:
     /// https://www.power.org
     ///        /resources/downloads/Power-Arch-32-bit-ABI-supp-1.0-Embedded.pdf

clang/lib/AST/ASTContext.cpp

@@ -9998,14 +9998,6 @@ CreateX86_64ABIBuiltinVaListDecl(const ASTContext *Context) {
   return Context->buildImplicitTypedef(VaListTagArrayType, "__builtin_va_list");
 }
 
-static TypedefDecl *CreatePNaClABIBuiltinVaListDecl(const ASTContext *Context) {
-  // typedef int __builtin_va_list[4];
-  llvm::APInt Size(Context->getTypeSize(Context->getSizeType()), 4);
-  QualType IntArrayType = Context->getConstantArrayType(
-      Context->IntTy, Size, nullptr, ArraySizeModifier::Normal, 0);
-  return Context->buildImplicitTypedef(IntArrayType, "__builtin_va_list");
-}
-
 static TypedefDecl *
 CreateAAPCSABIBuiltinVaListDecl(const ASTContext *Context) {
   // struct __va_list
@@ -10203,8 +10195,6 @@ static TypedefDecl *CreateVaListDecl(const ASTContext *Context,
     return CreatePowerABIBuiltinVaListDecl(Context);
   case TargetInfo::X86_64ABIBuiltinVaList:
     return CreateX86_64ABIBuiltinVaListDecl(Context);
-  case TargetInfo::PNaClABIBuiltinVaList:
-    return CreatePNaClABIBuiltinVaListDecl(Context);
   case TargetInfo::AAPCSABIBuiltinVaList:
     return CreateAAPCSABIBuiltinVaListDecl(Context);
   case TargetInfo::SystemZBuiltinVaList:

clang/lib/Basic/CMakeLists.txt

@@ -111,7 +111,6 @@ add_clang_library(clangBasic
   Targets/Mips.cpp
   Targets/NVPTX.cpp
   Targets/OSTargets.cpp
-  Targets/PNaCl.cpp
   Targets/PPC.cpp
   Targets/RISCV.cpp
   Targets/SPIR.cpp

clang/lib/Basic/Targets.cpp

@@ -29,7 +29,6 @@
 #include "Targets/Mips.h"
 #include "Targets/NVPTX.h"
 #include "Targets/OSTargets.h"
-#include "Targets/PNaCl.h"
 #include "Targets/PPC.h"
 #include "Targets/RISCV.h"
 #include "Targets/SPIR.h"
@@ -228,8 +227,6 @@ std::unique_ptr<TargetInfo> AllocateTarget(const llvm::Triple &Triple,
       return std::make_unique<RTEMSTargetInfo<ARMleTargetInfo>>(Triple, Opts);
     case llvm::Triple::Haiku:
       return std::make_unique<HaikuTargetInfo<ARMleTargetInfo>>(Triple, Opts);
-    case llvm::Triple::NaCl:
-      return std::make_unique<NaClTargetInfo<ARMleTargetInfo>>(Triple, Opts);
     case llvm::Triple::Win32:
       switch (Triple.getEnvironment()) {
       case llvm::Triple::Cygnus:
@@ -260,8 +257,6 @@ std::unique_ptr<TargetInfo> AllocateTarget(const llvm::Triple &Triple,
       return std::make_unique<NetBSDTargetInfo<ARMbeTargetInfo>>(Triple, Opts);
     case llvm::Triple::RTEMS:
       return std::make_unique<RTEMSTargetInfo<ARMbeTargetInfo>>(Triple, Opts);
-    case llvm::Triple::NaCl:
-      return std::make_unique<NaClTargetInfo<ARMbeTargetInfo>>(Triple, Opts);
     default:
       return std::make_unique<ARMbeTargetInfo>(Triple, Opts);
     }
@@ -304,9 +299,6 @@ std::unique_ptr<TargetInfo> AllocateTarget(const llvm::Triple &Triple,
       return std::make_unique<FreeBSDTargetInfo<MipsTargetInfo>>(Triple, Opts);
     case llvm::Triple::NetBSD:
       return std::make_unique<NetBSDTargetInfo<MipsTargetInfo>>(Triple, Opts);
-    case llvm::Triple::NaCl:
-      return std::make_unique<NaClTargetInfo<NaClMips32TargetInfo>>(Triple,
-                                                                    Opts);
     case llvm::Triple::Win32:
       switch (Triple.getEnvironment()) {
       case llvm::Triple::GNU:
@@ -591,8 +583,6 @@ std::unique_ptr<TargetInfo> AllocateTarget(const llvm::Triple &Triple,
       return std::make_unique<HaikuX86_32TargetInfo>(Triple, Opts);
     case llvm::Triple::RTEMS:
       return std::make_unique<RTEMSX86_32TargetInfo>(Triple, Opts);
-    case llvm::Triple::NaCl:
-      return std::make_unique<NaClTargetInfo<X86_32TargetInfo>>(Triple, Opts);
     case llvm::Triple::ELFIAMCU:
       return std::make_unique<MCUX86_32TargetInfo>(Triple, Opts);
     case llvm::Triple::Hurd:
@@ -652,8 +642,6 @@ std::unique_ptr<TargetInfo> AllocateTarget(const llvm::Triple &Triple,
     }
     case llvm::Triple::Haiku:
       return std::make_unique<HaikuTargetInfo<X86_64TargetInfo>>(Triple, Opts);
-    case llvm::Triple::NaCl:
-      return std::make_unique<NaClTargetInfo<X86_64TargetInfo>>(Triple, Opts);
     case llvm::Triple::PS4:
       return std::make_unique<PS4OSTargetInfo<X86_64TargetInfo>>(Triple, Opts);
     case llvm::Triple::PS5:

clang/lib/Basic/Targets/ARM.cpp

@@ -57,9 +57,6 @@ void ARMTargetInfo::setABIAAPCS() {
                     "-a:0:32"
                     "-n32"
                     "-S64");
-  } else if (T.isOSNaCl()) {
-    assert(!BigEndian && "NaCl on ARM does not support big endian");
-    resetDataLayout("e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S128");
   } else {
     resetDataLayout(BigEndian
                         ? "E-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"

clang/lib/Basic/Targets/OSTargets.h

@@ -865,53 +865,6 @@ class LLVM_LIBRARY_VISIBILITY WindowsTargetInfo : public OSTargetInfo<Target> {
   }
 };
 
-template <typename Target>
-class LLVM_LIBRARY_VISIBILITY NaClTargetInfo : public OSTargetInfo<Target> {
-protected:
-  void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
-                    MacroBuilder &Builder) const override {
-    if (Opts.POSIXThreads)
-      Builder.defineMacro("_REENTRANT");
-    if (Opts.CPlusPlus)
-      Builder.defineMacro("_GNU_SOURCE");
-
-    DefineStd(Builder, "unix", Opts);
-    Builder.defineMacro("__native_client__");
-  }
-
-public:
-  NaClTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
-      : OSTargetInfo<Target>(Triple, Opts) {
-    this->LongAlign = 32;
-    this->LongWidth = 32;
-    this->PointerAlign = 32;
-    this->PointerWidth = 32;
-    this->IntMaxType = TargetInfo::SignedLongLong;
-    this->Int64Type = TargetInfo::SignedLongLong;
-    this->DoubleAlign = 64;
-    this->LongDoubleWidth = 64;
-    this->LongDoubleAlign = 64;
-    this->LongLongWidth = 64;
-    this->LongLongAlign = 64;
-    this->SizeType = TargetInfo::UnsignedInt;
-    this->PtrDiffType = TargetInfo::SignedInt;
-    this->IntPtrType = TargetInfo::SignedInt;
-    // RegParmMax is inherited from the underlying architecture.
-    this->LongDoubleFormat = &llvm::APFloat::IEEEdouble();
-    if (Triple.getArch() == llvm::Triple::arm) {
-      // Handled in ARM's setABI().
-    } else if (Triple.getArch() == llvm::Triple::x86) {
-      this->resetDataLayout("e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-"
-                            "i64:64-i128:128-n8:16:32-S128");
-    } else if (Triple.getArch() == llvm::Triple::x86_64) {
-      this->resetDataLayout("e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-"
-                            "i64:64-i128:128-n8:16:32:64-S128");
-    } else if (Triple.getArch() == llvm::Triple::mipsel) {
-      // Handled on mips' setDataLayout.
-    }
-  }
-};
-
 // Fuchsia Target
 template <typename Target>
 class LLVM_LIBRARY_VISIBILITY FuchsiaTargetInfo : public OSTargetInfo<Target> {

clang/lib/Basic/Targets/PNaCl.cpp

@@ -144,7 +144,6 @@ add_clang_library(clangCodeGen
   Targets/MSP430.cpp
   Targets/Mips.cpp
   Targets/NVPTX.cpp
-  Targets/PNaCl.cpp
   Targets/PPC.cpp
   Targets/RISCV.cpp
   Targets/SPIR.cpp

clang/lib/Basic/Targets/PNaCl.h

@@ -118,9 +118,7 @@ createTargetCodeGenInfo(CodeGenModule &CGM) {
     return createM68kTargetCodeGenInfo(CGM);
   case llvm::Triple::mips:
   case llvm::Triple::mipsel:
-    if (Triple.getOS() == llvm::Triple::NaCl)
-      return createPNaClTargetCodeGenInfo(CGM);
-    else if (Triple.getOS() == llvm::Triple::Win32)
+    if (Triple.getOS() == llvm::Triple::Win32)
       return createWindowsMIPSTargetCodeGenInfo(CGM, /*IsOS32=*/true);
     return createMIPSTargetCodeGenInfo(CGM, /*IsOS32=*/true);