src/cpu/x86/vm/sharedRuntime_x86_64.cpp

rev 5186 : 8024342: PPC64 (part 111): Support for C calling conventions that require 64-bit ints.
Summary: Some platforms, as ppc and s390x/zArch require that 32-bit ints are passed as 64-bit values to C functions. This change adds support to adapt the signature and to issue proper casts to c2-compiled stubs. The functions are used in generate_native_wrapper(). Adapt signature in PhaseIdealLoop::intrinsify_fill().

*** 998,1007 ****
--- 998,1012 ----
  #endif // _WIN64
  
    return stk_args;
  }
  
+ // Do we need to convert ints to longs for c calls?
+ bool SharedRuntime::c_calling_convention_requires_ints_as_longs() {
+   return false;
+ }
+ 
  // On 64 bit we will store integer like items to the stack as
  // 64 bits items (sparc abi) even though java would only store
  // 32bits for a parameter. On 32bit it will simply be 32 bits
  // So this routine will do 32->32 on 32bit and 32->64 on 64bit
  static void move32_64(MacroAssembler* masm, VMRegPair src, VMRegPair dst) {