Subzero : Live Range Splitting after initial Register Allocation

src/IceClFlags.def

 //===- subzero/src/IceClFlags.def - Cl Flags for translation ----*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 149 matching lines @@
     cl::desc("Force -O2 for certain functions (assumes -Om1)"), cl::init(""))  \
                                                                                \
   X(FunctionSections, bool, dev_opt_flag, "ffunction-sections",                \
     cl::desc("Emit functions into separate sections"))                         \
                                                                                \
   X(GenerateBuildAtts, bool, release_opt_flag, "build-atts",                   \
     cl::desc("Generate list of build attributes associated with "              \
              "this executable."),                                              \
     cl::init(false))                                                           \
                                                                                \
+  X(SplitGlobalVars, bool, dev_opt_flag, "split-global-vars",                  \
+    cl::desc("Global live range splitting"),                                   \
+    cl::init(false))                                                           \
+                                                                               \
   X(InputFileFormat, llvm::NaClFileFormat, dev_opt_flag, "bitcode-format",     \
     cl::desc("Define format of input file:"),                                  \
     cl::values(clEnumValN(llvm::LLVMFormat, "llvm", "LLVM file (default)"),    \
                clEnumValN(llvm::PNaClFormat, "pnacl", "PNaCl bitcode file"),   \
                clEnumValEnd),                                                  \
     cl::init(llvm::LLVMFormat))                                                \
                                                                                \
   X(KeepDeletedInsts, bool, dev_opt_flag, "keep-deleted-insts",                \
     cl::desc("Retain deleted instructions in the Cfg"),                        \
     cl::init(Ice::BuildDefs::dump()))                                          \
@@ skipping 187 matching lines @@
                                                                                \
   X(WasmBoundsCheck, bool, dev_opt_flag, "wasm-bounds-check",                  \
     cl::desc("Add bounds checking code in WASM frontend"),                     \
     cl::init(true))
 
 //#define X(Name, Type, ClType, ...)
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICECLFLAGS_DEF