src/cpu/ppc/vm/vm_version_ppc.cpp

rev 7507 : 8066964: ppc64: argument and return type profiling, fix problem with popframe

*** 132,148 ****
      if (FLAG_IS_DEFAULT(AllocatePrefetchLines)) AllocatePrefetchLines = 3; // Optimistic value.
      if (AllocatePrefetchDistance < 0) AllocatePrefetchDistance = 3*cache_line_size; // Default is not defined?
    }
  
    assert(AllocatePrefetchLines > 0, "invalid value");
!   if (AllocatePrefetchLines < 1) // Set valid value in product VM.
      AllocatePrefetchLines = 1; // Conservative value.
  
!   if (AllocatePrefetchStyle == 3 && AllocatePrefetchDistance < cache_line_size)
      AllocatePrefetchStyle = 1; // Fall back if inappropriate.
  
    assert(AllocatePrefetchStyle >= 0, "AllocatePrefetchStyle should be positive");
  }
  
  void VM_Version::print_features() {
    tty->print_cr("Version: %s cache_line_size = %d", cpu_features(), (int) get_cache_line_size());
  }
--- 132,179 ----
      if (FLAG_IS_DEFAULT(AllocatePrefetchLines)) AllocatePrefetchLines = 3; // Optimistic value.
      if (AllocatePrefetchDistance < 0) AllocatePrefetchDistance = 3*cache_line_size; // Default is not defined?
    }
  
    assert(AllocatePrefetchLines > 0, "invalid value");
!   if (AllocatePrefetchLines < 1) { // Set valid value in product VM.
      AllocatePrefetchLines = 1; // Conservative value.
+   }
  
!   if (AllocatePrefetchStyle == 3 && AllocatePrefetchDistance < cache_line_size) {
      AllocatePrefetchStyle = 1; // Fall back if inappropriate.
+   }
  
    assert(AllocatePrefetchStyle >= 0, "AllocatePrefetchStyle should be positive");
+ 
+   if (UseCRC32Intrinsics) {
+     if (!FLAG_IS_DEFAULT(UseCRC32Intrinsics))
+       warning("CRC32 intrinsics  are not available on this CPU");
+     FLAG_SET_DEFAULT(UseCRC32Intrinsics, false);
+   }
+ 
+   // The AES intrinsic stubs require AES instruction support.
+   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);
+   }
+ 
+   if (UseSHA) {
+     warning("SHA instructions are not available on this CPU");
+     FLAG_SET_DEFAULT(UseSHA, false);
+   }
+   if (UseSHA1Intrinsics || UseSHA256Intrinsics || UseSHA512Intrinsics) {
+     warning("SHA intrinsics are not available on this CPU");
+     FLAG_SET_DEFAULT(UseSHA1Intrinsics, false);
+     FLAG_SET_DEFAULT(UseSHA256Intrinsics, false);
+     FLAG_SET_DEFAULT(UseSHA512Intrinsics, false);
+   }
+ 
  }
  
  void VM_Version::print_features() {
    tty->print_cr("Version: %s cache_line_size = %d", cpu_features(), (int) get_cache_line_size());
  }