Webrev related to JavaCallArguments

[Eric Caspole]

Is this OK to be committed? This problem sometimes blocks other testing.
Thanks,
Eric


On 08/11/2014 02:14 PM, Igor Veresov wrote:
> Looks alright.
>
> igor
>
> On Aug 11, 2014, at 6:01 AM, Caspole, Eric <Eric.Caspole at amd.com> wrote:
>
>> Hi everybody,
>> I put up a new webrev -
>>
>> http://cr.openjdk.java.net/~ecaspole/long_java_args/
>>
>> It seems in the JavaCallArguments class there is some kind of assumption that there are less than 8 args when you call the default constructor.
>> In this change I use the constructor that takes the args length to avoid the assert shown below, when there are more than 8 arguments. I included a new test that is usually successful to trigger the problem by having a longer running kernel with 9 arguments that notices a safepoint and would assert while handling the never-rans in the cleanup using the current code.
>>
>> Also in this webrev I snuck in a TraceTime around kernel generation, it is handy for us to see ow long this takes for various kernels.
>>
>> Thanks,
>> Eric
>>
>> #5  report_vm_error (file=0x7ff50d10a2d8
>> "/home/ecaspole/views/graal-sweep/graal/src/share/vm/runtime/javaCalls.cpp",
>> line=505, error_msg=0x7ff50d10a3e0 "guarantee(_is_oop[_pos++] == type)
>> failed", detail_msg=0x7ff50d10a3b0 "signature does not match pushed
>> arguments") at
>> /home/ecaspole/views/graal-sweep/graal/src/share/vm/utilities/debug.cpp:217
>> #6  0x00007ff50c9d49b2 in check_value (this=<optimized out>,
>> type=<optimized out>) at
>> /home/ecaspole/views/graal-sweep/graal/src/share/vm/runtime/javaCalls.cpp:505
>> #7  check_value (type=true, this=<optimized out>) at
>> /home/ecaspole/views/graal-sweep/graal/src/share/vm/runtime/javaCalls.cpp:570
>> #8  check_obj (this=0x7ff50e307370, t=<optimized out>) at
>> /home/ecaspole/views/graal-sweep/graal/src/share/vm/runtime/javaCalls.cpp:557
>> #9  SignatureChekker::do_array (this=0x7ff50e307370, begin=<optimized
>> out>, end=<optimized out>) at
>> /home/ecaspole/views/graal-sweep/graal/src/share/vm/runtime/javaCalls.cpp:570
>