S RFR JDK-8024050: Incorrect optimization level and comment specified for unsafe.cpp

[Ron Durbin]

Lois I am unofficial reviewer, but the change looks good.

Ron

> -----Original Message-----
> From: Lois Foltan
> Sent: Friday, August 30, 2013 11:18 AM
> To: hotspot-runtime-dev at openjdk.java.net; build-dev at openjdk.java.net
> Subject: S RFR JDK-8024050: Incorrect optimization level and comment specified for
> unsafe.cpp
> 
> 
> Please review the following fix:
>      open webrev at http://cr.openjdk.java.net/~hseigel/bug_jdk8024050/
> 
> Bug: bug link at https://bugs.openjdk.java.net/browse/JDK-8024050
> 
> Summary of fix:
> 
>      The original sources used for the JDK-8022407 webrev sponsorship contained an incorrect
> optimization
>      level specification for unsafe.cpp that was fixed on the MacOS machine prior to
> testing.  Unfortunately,
>      this incorrect specification of -01 instead of -O1 was committed.
> In addition, corrected the comment for
>      the Clang optimization level skew issue between PCH Files and files of different
> optimization levels.
> 
> Tests:
>      MacOS: built fastdebug & product images using clang++ and llvm-g++ Ran original JDK-
> 8022407 test case.
>                    JTREG testing in progress.
> 
> Thank you,
> Lois
> 
>