Delete le32/le64 targets

They are unused now.

Note: NaCl is still used and is currently expected to be needed until 2022-06
(https://blog.chromium.org/2020/08/changes-to-chrome-app-support-timeline.html).

Differential Revision: https://reviews.llvm.org/D100981

Author: MaskRay

clang/include/clang/Basic/BuiltinsLe64.def

@@ -300,16 +300,6 @@ namespace clang {
     };
   }
 
-  /// Le64 builtins
-  namespace Le64 {
-  enum {
-    LastTIBuiltin = clang::Builtin::FirstTSBuiltin - 1,
-  #define BUILTIN(ID, TYPE, ATTRS) BI##ID,
-  #include "clang/Basic/BuiltinsLe64.def"
-    LastTSBuiltin
-  };
-  }
-
   /// SystemZ builtins
   namespace SystemZ {
     enum {
@@ -335,8 +325,7 @@ namespace clang {
        PPC::LastTSBuiltin, NVPTX::LastTSBuiltin, AMDGPU::LastTSBuiltin,
        X86::LastTSBuiltin, VE::LastTSBuiltin, RISCV::LastTSBuiltin,
        Hexagon::LastTSBuiltin, Mips::LastTSBuiltin, XCore::LastTSBuiltin,
-       Le64::LastTSBuiltin, SystemZ::LastTSBuiltin,
-       WebAssembly::LastTSBuiltin});
+       SystemZ::LastTSBuiltin, WebAssembly::LastTSBuiltin});
 
 } // end namespace clang.
 

clang/include/clang/Basic/TargetBuiltins.h

@@ -40,7 +40,6 @@ module Clang_Basic {
   textual header "Basic/BuiltinsHexagon.def"
   textual header "Basic/BuiltinsHexagonDep.def"
   textual header "Basic/BuiltinsHexagonMapCustomDep.def"
-  textual header "Basic/BuiltinsLe64.def"
   textual header "Basic/BuiltinsMips.def"
   textual header "Basic/BuiltinsNEON.def"
   textual header "Basic/BuiltinsNVPTX.def"

clang/include/clang/module.modulemap

@@ -77,7 +77,6 @@ add_clang_library(clangBasic
   Targets/BPF.cpp
   Targets/Hexagon.cpp
   Targets/Lanai.cpp
-  Targets/Le64.cpp
   Targets/M68k.cpp
   Targets/MSP430.cpp
   Targets/Mips.cpp

clang/lib/Basic/CMakeLists.txt

@@ -21,7 +21,6 @@
 #include "Targets/BPF.h"
 #include "Targets/Hexagon.h"
 #include "Targets/Lanai.h"
-#include "Targets/Le64.h"
 #include "Targets/M68k.h"
 #include "Targets/MSP430.h"
 #include "Targets/Mips.h"
@@ -314,17 +313,6 @@ TargetInfo *AllocateTarget(const llvm::Triple &Triple,
       return new M68kTargetInfo(Triple, Opts);
     }
 
-  case llvm::Triple::le32:
-    switch (os) {
-    case llvm::Triple::NaCl:
-      return new NaClTargetInfo<PNaClTargetInfo>(Triple, Opts);
-    default:
-      return nullptr;
-    }
-
-  case llvm::Triple::le64:
-    return new Le64TargetInfo(Triple, Opts);
-
   case llvm::Triple::ppc:
     if (Triple.isOSDarwin())
       return new DarwinPPC32TargetInfo(Triple, Opts);

clang/lib/Basic/Targets.cpp

@@ -866,11 +866,9 @@ class LLVM_LIBRARY_VISIBILITY NaClTargetInfo : public OSTargetInfo<Target> {
     } 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-n8:16:32:64-S128");
-    } else if (Triple.getArch() == llvm::Triple::mipsel) {
-      // Handled on mips' setDataLayout.
     } else {
-      assert(Triple.getArch() == llvm::Triple::le32);
-      this->resetDataLayout("e-p:32:32-i64:64");
+      assert(Triple.getArch() == llvm::Triple::mipsel);
+      // Handled on mips' setDataLayout.
     }
   }
 };

clang/lib/Basic/Targets/Le64.cpp

@@ -577,13 +577,6 @@ CodeGen::CGCXXABI *CodeGen::CreateItaniumCXXABI(CodeGenModule &CGM) {
     return new XLCXXABI(CGM);
 
   case TargetCXXABI::GenericItanium:
-    if (CGM.getContext().getTargetInfo().getTriple().getArch()
-        == llvm::Triple::le32) {
-      // For PNaCl, use ARM-style method pointers so that PNaCl code
-      // does not assume anything about the alignment of function
-      // pointers.
-      return new ItaniumCXXABI(CGM, /*UseARMMethodPtrABI=*/true);
-    }
     return new ItaniumCXXABI(CGM);
 
   case TargetCXXABI::Microsoft:

clang/lib/Basic/Targets/Le64.h

@@ -10970,8 +10970,6 @@ const TargetCodeGenInfo &CodeGenModule::getTargetCodeGenInfo() {
   default:
     return SetCGInfo(new DefaultTargetCodeGenInfo(Types));
 
-  case llvm::Triple::le32:
-    return SetCGInfo(new PNaClTargetCodeGenInfo(Types));
   case llvm::Triple::m68k:
     return SetCGInfo(new M68kTargetCodeGenInfo(Types));
   case llvm::Triple::mips: