r179216 - [driver] Add a -Ofast option, which enables -O3, -ffast-math, and
mcrosier at apple.com
Wed Apr 10 16:02:40 PDT 2013
On Apr 10, 2013, at 3:56 PM, Eric Christopher <echristo at gmail.com> wrote:
> On Wed, Apr 10, 2013 at 2:26 PM, Chad Rosier <mcrosier at apple.com> wrote:
>> Author: mcrosier
>> Date: Wed Apr 10 16:26:02 2013
>> New Revision: 179216
>> URL: http://llvm.org/viewvc/llvm-project?rev=179216&view=rev
>> [driver] Add a -Ofast option, which enables -O3, -ffast-math, and
> Really? Why not -Ospec? or any other naming? :)
Well, gcc supports a flag by the same name with the same basic definition, per Evan.
Personally, I wanted -Obombdiggity, but Evan was against it.. j/k!
> Can you elaborate as to why we need this? ;)
Basically, the flag is designed for getting the max performance out of CPU benchmarks.
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