clang
Running pts/npb-1.2.0, pts/hmmer-1.1.0, pts/gcrypt-1.0.2, pts/john-the-ripper-1.5.0, pts/x264-1.8.1, pts/graphics-magick-1.6.1, pts/compress-7zip-1.6.0, pts/build-apache-1.5.1, pts/build-imagemagick-1.6.1, pts/build-php-1.3.1, pts/c-ray-1.1.0, pts/bullet-1.2.0, pts/encode-mp3-1.4.0, pts/openssl-1.9.0, pts/apache-1.6.1 via the Phoronix Test Suite.


-O3: 

	Processor: Intel Core i7 870 @ 2.93GHz (8 Cores), Motherboard: Dell 0D441T, Chipset: Intel Core DMI, Memory: 8192MB, Disk: 500GB Seagate ST3500418AS, Graphics: AMD Radeon HD 4550 512MB, Audio: Realtek ALC269VB, Monitor: SyncMaster, Network: Intel 82578DM Gigabit Connection

	OS: Ubuntu 14.04, Kernel: 3.13.0-30-generic (x86_64), Desktop: Xfce, Display Driver: radeon 7.3.0, Compiler: Clang 3.4.2 + GCC 4.8.2 + LLVM 3.4.2, File-System: ext4, Screen Resolution: 1920x1080

-O1: 

	Processor: Intel Core i7 870 @ 2.93GHz (8 Cores), Motherboard: Dell 0D441T, Chipset: Intel Core DMI, Memory: 8192MB, Disk: 500GB Seagate ST3500418AS, Graphics: AMD Radeon HD 4550 512MB, Audio: Realtek ALC269VB, Monitor: SyncMaster, Network: Intel 82578DM Gigabit Connection

	OS: Ubuntu 14.04, Kernel: 3.13.0-30-generic (x86_64), Desktop: Xfce, Display Driver: radeon 7.3.0, Compiler: Clang 3.4.2 + GCC 4.8.2 + LLVM 3.4.2, File-System: ext4, Screen Resolution: 1920x1080


NAS Parallel Benchmarks 3.3
Test / Class: LU.A
Total Mop/s > Higher Is Better
-O3 . 5427.17 |============================================================
-O1 . 5831.79 |================================================================


Timed HMMer Search 2.3.2
Pfam Database Search
Seconds < Lower Is Better
-O3 . 14.77 |===========================================================
-O1 . 16.49 |==================================================================


John The Ripper 1.8.0
Test: Blowfish
Real C/S > Higher Is Better
-O3 . 837 |====================================================================
-O1 . 835 |====================================================================


x264 2014-01-09
H.264 Video Encoding
Frames Per Second > Higher Is Better
-O3 . 111.11 |=================================================================
-O1 . 110.73 |=================================================================


GraphicsMagick 1.3.19
Operation: Sharpen
Iterations Per Minute > Higher Is Better
-O3 . 41 |============================================================
-O1 . 47 |=====================================================================


GraphicsMagick 1.3.19
Operation: Resizing
Iterations Per Minute > Higher Is Better
-O3 . 84 |=====================================================================
-O1 . 84 |=====================================================================


GraphicsMagick 1.3.19
Operation: HWB Color Space
Iterations Per Minute > Higher Is Better
-O3 . 107 |===================================================================
-O1 . 108 |====================================================================


Timed Apache Compilation 2.4.7
Time To Compile
Seconds < Lower Is Better
-O3 . 20.88 |==================================================================
-O1 . 18.64 |===========================================================


Timed ImageMagick Compilation 6.8.1-10
Time To Compile
Seconds < Lower Is Better
-O3 . 26.65 |==================================================================
-O1 . 23.04 |=========================================================


Timed PHP Compilation 5.2.9
Time To Compile
Seconds < Lower Is Better
-O3 . 26.02 |==================================================================
-O1 . 21.43 |======================================================


C-Ray 1.1
Total Time
Seconds < Lower Is Better
-O3 . 41.26 |=================================================
-O1 . 55.49 |==================================================================


LAME MP3 Encoding 3.99.3
WAV To MP3
Seconds < Lower Is Better
-O3 . 14.54 |=====================================================
-O1 . 18.00 |==================================================================


OpenSSL 1.0.1g
RSA 4096-bit Performance
Signs Per Second > Higher Is Better
-O3 . 279.90 |=================================================================
-O1 . 279.97 |=================================================================