[9] RFR (XS): 8075270: Print locals & stack slots location for PcDescs

[Vladimir Ivanov]

Thanks, Vladimir.

> Can you look how scalarized (EA) objects are displayed?
It looks fine.

Simple test:
     static int f(int a) {
         Integer i = new Integer(a), j = new Integer(10);
         nonInlined();
         return i.intValue() + j.intValue();
     }

PcDesc(pc=0x105a08274 offset=14 bits=0):
    EA::f at 19 (line 10)
    Locals
     - l0: empty
     - l1: obj[14]
     - l2: obj[15]
    Objects
     - 14: reg rbp [10],int
     - 15: 10

While experimenting with that, I found that:
   (1) "Objects" section indentation is broken;
   (2) tty is used where st is expected.

Updated webrev in place:
   http://cr.openjdk.java.net/~vlivanov/8075270/webrev.00/

Best regards,
Vladimir Ivanov

>
> Thanks,
> Vladimir K
>
> On 3/16/15 12:26 PM, Vladimir Ivanov wrote:
>> http://cr.openjdk.java.net/~vlivanov/8075270/webrev.00/
>> https://bugs.openjdk.java.net/browse/JDK-8075270
>>
>> Enhance -XX:+PrintNMethods output with additional info about locals &
>> stack slots location (if present):
>> PcDesc(pc=0x110b71b5c offset=17c bits=0):
>>     java.lang.String::indexOf at 43 (line 1562)
>>     Locals
>>      - l0: empty
>>      - l1: stack[0]
>>      - l2: empty
>>      - l3: reg rbp [10],int
>>      - l4: stack[8],narrowoop
>>      - l5: stack[4]
>>
>> Right now it looks like:
>> PcDesc(pc=0x110b71b5c offset=17c bits=0):
>>     java.lang.String::indexOf at 43 (line 1562)
>>
>> Testing: manual.
>>
>> Thanks!
>>
>> Best regards,
>> Vladimir Ivanov