LLVM: add support for asmjs arch and Emscripten OS

include/llvm/ADT/Triple.h

 //===-- llvm/ADT/Triple.h - Target triple helper class ----------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_ADT_TRIPLE_H
@@ skipping 55 matching lines @@
     tce,        // TCE (http://tce.cs.tut.fi/): tce
     thumb,      // Thumb (little endian): thumb, thumbv.*
     thumbeb,    // Thumb (big endian): thumbeb
     x86,        // X86: i[3-9]86
     x86_64,     // X86-64: amd64, x86_64
     xcore,      // XCore: xcore
     nvptx,      // NVPTX: 32-bit
     nvptx64,    // NVPTX: 64-bit
     le32,       // le32: generic little-endian 32-bit CPU (PNaCl / Emscripten)
     le64,       // le64: generic little-endian 64-bit CPU (PNaCl / Emscripten)
+    asmjs,      // asm.js JavaScript subset @LOCALMOD Emscripten
     amdil,      // AMDIL
     amdil64,    // AMDIL with 64-bit pointers
     hsail,      // AMD HSAIL
     hsail64,    // AMD HSAIL with 64-bit pointers
     spir,       // SPIR: standard portable IR for OpenCL 32-bit version
     spir64,     // SPIR: standard portable IR for OpenCL 64-bit version
     kalimba     // Kalimba: generic kalimba
   };
   enum SubArchType {
     NoSubArch,
@@ skipping 40 matching lines @@
     Linux,
     Lv2,        // PS3
     MacOSX,
     NetBSD,
     OpenBSD,
     Solaris,
     Win32,
     Haiku,
     Minix,
     RTEMS,
+    Emscripten, // Emscripten JavaScript runtime @LOCALMOD Emscripten
     NaCl,       // Native Client
     CNK,        // BG/P Compute-Node Kernel
     Bitrig,
     AIX,
     CUDA,       // NVIDIA CUDA
     NVCL        // NVIDIA OpenCL
   };
   enum EnvironmentType {
     UnknownEnvironment,
 
@@ skipping 223 matching lines @@
   bool isOSFreeBSD() const { return false; }
   bool isOSSolaris() const { return false; }
   bool isOSBitrig() const { return false; }
   bool isWindowsMSVCEnvironment() const { return false; }
   bool isKnownWindowsMSVCEnvironment() const { return false; }
   bool isWindowsItaniumEnvironment() const { return false; }
   bool isWindowsCygwinEnvironment() const { return false; }
   bool isWindowsGNUEnvironment() const { return false; }
   bool isOSCygMing() const { return false; }
   bool isOSMSVCRT() const { return false; }
   bool isOSWindows() const { return false; }

[jvoung (off chromium), 2015/03/20 17:13:38]

May want to add isOSEmscripten() here and below.

[JF, 2015/03/20 17:47:11]

Done, and added to the ifdef above.

   bool isOSNaCl() const { return true; }
   bool isOSLinux() const { return false; }
   bool isOSBinFormatELF() const { return true; }
   bool isOSBinFormatCOFF() const { return false; }
   bool isOSBinFormatMachO() const { return false; }
 #else
   /// isMacOSX - Is this a Mac OS X triple. For legacy reasons, we support both
   /// "darwin" and "osx" as OS X triples.
   bool isMacOSX() const {
     return getOS() == Triple::Darwin || getOS() == Triple::MacOSX;
@@ skipping 199 matching lines @@
   /// architecture name (e.g., "x86").
   static ArchType getArchTypeForLLVMName(StringRef Str);
 
   /// @}
 };
 
 } // End llvm namespace
 
 
 #endif