src/share/vm/opto/runtime.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().

@@ -793,15 +793,23 @@
   return make_arraycopy_Type(ac_generic);
 }
 
 
 const TypeFunc* OptoRuntime::array_fill_Type() {
-  // create input type (domain): pointer, int, size_t
-  const Type** fields = TypeTuple::fields(3 LP64_ONLY( + 1));
+  const Type** fields;
   int argp = TypeFunc::Parms;
+  // create input type (domain): pointer, int, size_t
+  if (SharedRuntime::c_calling_convention_requires_ints_as_longs()) {
+    fields = TypeTuple::fields(3 LP64_ONLY( + 2));
+    fields[argp++] = TypePtr::NOTNULL;
+    fields[argp++] = TypeLong::LONG;
+    fields[argp++] = Type::HALF;
+  } else {
+    fields = TypeTuple::fields(3 LP64_ONLY( + 1));
   fields[argp++] = TypePtr::NOTNULL;
   fields[argp++] = TypeInt::INT;
+  }
   fields[argp++] = TypeX_X;               // size in whatevers (size_t)
   LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length
   const TypeTuple *domain = TypeTuple::make(argp, fields);
 
   // create result type