24 
  25 #include "precompiled.hpp"
  26 #include "asm/macroAssembler.inline.hpp"
  27 #include "code/debugInfoRec.hpp"
  28 #include "code/icBuffer.hpp"
  29 #include "code/vtableStubs.hpp"
  30 #include "interpreter/interpreter.hpp"
  31 #include "logging/log.hpp"
  32 #include "memory/resourceArea.hpp"
  33 #include "oops/compiledICHolder.hpp"
  34 #include "runtime/sharedRuntime.hpp"
  35 #include "runtime/vframeArray.hpp"
  36 #include "utilities/align.hpp"
  37 #include "vmreg_sparc.inline.hpp"
  38 #ifdef COMPILER1
  39 #include "c1/c1_Runtime1.hpp"
  40 #endif
  41 #ifdef COMPILER2
  42 #include "opto/runtime.hpp"
  43 #endif
  44 #ifdef SHARK
  45 #include "compiler/compileBroker.hpp"
  46 #include "shark/sharkCompiler.hpp"
  47 #endif
  48 #if INCLUDE_JVMCI
  49 #include "jvmci/jvmciJavaClasses.hpp"
  50 #endif
  51 
  52 #define __ masm->
  53 
  54 
  55 class RegisterSaver {
  56 
  57   // Used for saving volatile registers. This is Gregs, Fregs, I/L/O.
  58   // The Oregs are problematic. In the 32bit build the compiler can
  59   // have O registers live with 64 bit quantities. A window save will
  60   // cut the heads off of the registers. We have to do a very extensive
  61   // stack dance to save and restore these properly.
  62 
  63   // Note that the Oregs problem only exists if we block at either a polling
  64   // page exception a compiled code safepoint that was not originally a call
  65   // or deoptimize following one of these kinds of safepoints.
  66 
  67   // Lots of registers to save.  For all builds, a window save will preserve

  24 
  25 #include "precompiled.hpp"
  26 #include "asm/macroAssembler.inline.hpp"
  27 #include "code/debugInfoRec.hpp"
  28 #include "code/icBuffer.hpp"
  29 #include "code/vtableStubs.hpp"
  30 #include "interpreter/interpreter.hpp"
  31 #include "logging/log.hpp"
  32 #include "memory/resourceArea.hpp"
  33 #include "oops/compiledICHolder.hpp"
  34 #include "runtime/sharedRuntime.hpp"
  35 #include "runtime/vframeArray.hpp"
  36 #include "utilities/align.hpp"
  37 #include "vmreg_sparc.inline.hpp"
  38 #ifdef COMPILER1
  39 #include "c1/c1_Runtime1.hpp"
  40 #endif
  41 #ifdef COMPILER2
  42 #include "opto/runtime.hpp"
  43 #endif




  44 #if INCLUDE_JVMCI
  45 #include "jvmci/jvmciJavaClasses.hpp"
  46 #endif
  47 
  48 #define __ masm->
  49 
  50 
  51 class RegisterSaver {
  52 
  53   // Used for saving volatile registers. This is Gregs, Fregs, I/L/O.
  54   // The Oregs are problematic. In the 32bit build the compiler can
  55   // have O registers live with 64 bit quantities. A window save will
  56   // cut the heads off of the registers. We have to do a very extensive
  57   // stack dance to save and restore these properly.
  58 
  59   // Note that the Oregs problem only exists if we block at either a polling
  60   // page exception a compiled code safepoint that was not originally a call
  61   // or deoptimize following one of these kinds of safepoints.
  62 
  63   // Lots of registers to save.  For all builds, a window save will preserve