*** old/src/cpu/x86/vm/c1_MacroAssembler_x86.cpp	Thu Mar 20 11:28:53 2014
--- new/src/cpu/x86/vm/c1_MacroAssembler_x86.cpp	Thu Mar 20 11:28:52 2014

*** 347,363 ****
--- 347,364 ----
    const int ic_cmp_size = LP64_ONLY(10) NOT_LP64(9);
    assert(UseCompressedClassPointers || offset() - start_offset == ic_cmp_size, "check alignment in emit_method_entry");
  }
  
  
! void C1_MacroAssembler::build_frame(int frame_size_in_bytes, int bang_size_in_bytes) {
+   assert(bang_size_in_bytes >= frame_size_in_bytes, "stack bang size incorrect");
    // Make sure there is enough stack space for this method's activation.
    // Note that we do this before doing an enter(). This matches the
    // ordering of C2's stack overflow check / rsp decrement and allows
    // the SharedRuntime stack overflow handling to be consistent
    // between the two compilers.
!   generate_stack_overflow_check(frame_size_in_bytes);
!   generate_stack_overflow_check(bang_size_in_bytes);
  
    push(rbp);
  #ifdef TIERED
    // c2 leaves fpu stack dirty. Clean it on entry
    if (UseSSE < 2 ) {