8188868: PPC64: Support AES intrinsics on Big Endian

Reviewed-by: goetz

src/cpu/ppc/vm/assembler_ppc.hpp

@@ -2100,6 +2100,7 @@ class Assembler : public AbstractAssembler {
   // Endianess specific concatenation of 2 loaded vectors.
   inline void load_perm(VectorRegister perm, Register addr);
   inline void vec_perm(VectorRegister first_dest, VectorRegister second, VectorRegister perm);
+  inline void vec_perm(VectorRegister dest, VectorRegister first, VectorRegister second, VectorRegister perm);
 
   // RegisterOrConstant versions.
   // These emitters choose between the versions using two registers and

src/cpu/ppc/vm/assembler_ppc.inline.hpp

@@ -904,6 +904,14 @@ inline void Assembler::vec_perm(VectorRegister first_dest, VectorRegister second
 #endif
 }
 
+inline void Assembler::vec_perm(VectorRegister dest, VectorRegister first, VectorRegister second, VectorRegister perm) {
+#if defined(VM_LITTLE_ENDIAN)
+  vperm(dest, second, first, perm);
+#else
+  vperm(dest, first, second, perm);
+#endif
+}
+
 inline void Assembler::load_const(Register d, void* x, Register tmp) {
    load_const(d, (long)x, tmp);
 }

src/cpu/ppc/vm/stubRoutines_ppc_64.hpp

@@ -34,7 +34,7 @@ static bool returns_to_call_stub(address return_pc) { return return_pc == _call_
 
 enum platform_dependent_constants {
   code_size1 = 20000,          // simply increase if too small (assembler will crash if too small)
-  code_size2 = 22000           // simply increase if too small (assembler will crash if too small)
+  code_size2 = 24000           // simply increase if too small (assembler will crash if too small)
 };
 
 // CRC32 Intrinsics.

src/cpu/ppc/vm/vm_version_ppc.cpp

@@ -174,7 +174,6 @@ void VM_Version::initialize() {
   }
 
   // The AES intrinsic stubs require AES instruction support.
-#if defined(VM_LITTLE_ENDIAN)
   if (has_vcipher()) {
     if (FLAG_IS_DEFAULT(UseAES)) {
       UseAES = true;
@@ -195,18 +194,6 @@ void VM_Version::initialize() {
     FLAG_SET_DEFAULT(UseAESIntrinsics, false);
   }
 
-#else
-  if (UseAES) {
-    warning("AES instructions are not available on this CPU");
-    FLAG_SET_DEFAULT(UseAES, false);
-  }
-  if (UseAESIntrinsics) {
-    if (!FLAG_IS_DEFAULT(UseAESIntrinsics))
-      warning("AES intrinsics are not available on this CPU");
-    FLAG_SET_DEFAULT(UseAESIntrinsics, false);
-  }
-#endif
-
   if (has_vshasig()) {
     if (FLAG_IS_DEFAULT(UseSHA)) {
       UseSHA = true;