RFR: 8019470 "Changes needed to compile JDK8 on MacOS with clang compiler"

[Leonid Romanov]

On Jul 24, 2013, at 5:12 PM, David Chase <david.r.chase at oracle.com> wrote:

> 
> On 2013-07-23, at 7:38 PM, Tim Bell <tim.bell at oracle.com> wrote:
> 
>> Hello Leonid:
>> 
>>> Just to satisfy my curiosity: what are advantages of using clang instead of gcc?
>> 
>> I am a mere messenger here, but I am told that clang/clang++:
>> 
>> - is command line compatible with gcc
>> - is faster
>> - produces better diagnostic messages
>> - clang on MacOS is under active development while gcc is not [citation needed]
>> 
>> To others out there - feel free to correct these points, or add more of your own.
> 
> Clang is the default compiler for the next (Mavericks) MacOS release, or so I have heard.
> Clang is already more up-to-date than (Apple-packaged) gcc on MacOS -- if you want to access some of the "new" (two years old) intrinsics from C or from the assembler, you need to use clang.
> Compilation of hotspot itself is faster with clang; not sure about the performance of hotspot itself.

I see… Thanks! Anything that reduces compilation time is good ) 


> 
> David
>