LLVM Clang Intel Compiler Haswell Core-AVX2 LLVM Clang 3.3 and LLVM Clang 3.4 SVN compiler benchmarks from a Core i7 4750HQ Haswell CPU running Ubuntu Linux. -march=native and -O3 CFLAGS/CXXFLAGS set. Benchmarks by Michael Larabel for a future article on Phoronix. LLVM Clang 3.3: Processor: Intel Core i7-4750HQ @ 2.00GHz (8 Cores), Motherboard: System76 Galago UltraPro, Chipset: Intel Crystal Well DRAM, Memory: 8192MB, Disk: 120GB INTEL SSDMCEAC12, Graphics: Intel Crystal Well IGP (1200MHz), Audio: Intel Haswell HDMI, Network: Intel Connection I217-V + Intel Centrino Wireless-N 2230 OS: Ubuntu 13.10, Kernel: 3.11.0-7-generic (x86_64), Desktop: Xfce 4.10, Display Server: X Server 1.14.2.901 (1.14.3 RC 1), Display Driver: intel 2.21.14, OpenGL: 3.1 Mesa 9.2.0, Compiler: Clang 3.3 + LLVM 3.3, File-System: ext4, Screen Resolution: 1920x1080 LLVM Clang 3.4 SVN 20130918: Processor: Intel Core i7-4750HQ @ 2.00GHz (8 Cores), Motherboard: System76 Galago UltraPro, Chipset: Intel Crystal Well DRAM, Memory: 8192MB, Disk: 120GB INTEL SSDMCEAC12, Graphics: Intel Crystal Well IGP (1200MHz), Audio: Intel Haswell HDMI, Network: Intel Connection I217-V + Intel Centrino Wireless-N 2230 OS: Ubuntu 13.10, Kernel: 3.11.0-7-generic (x86_64), Desktop: Xfce 4.10, Display Server: X Server 1.14.2.901 (1.14.3 RC 1), Display Driver: intel 2.21.14, OpenGL: 3.1 Mesa 9.2.0, Compiler: Clang 3.4 (SVN 190956) + LLVM 3.4svn, File-System: ext4, Screen Resolution: 1920x1080 Parboil 2.5 Test: Seven-Point Stencil Seconds < Lower Is Better LLVM Clang 3.3 . 93.93 |======================================================= Parboil 2.5 Test: Cutoff Pair Potential Seconds < Lower Is Better LLVM Clang 3.3 . 51.08 |======================================================= Timed MAFFT Alignment 6.864 Multiple Sequence Alignment Seconds < Lower Is Better LLVM Clang 3.3 .............. 6.64 |========================================= LLVM Clang 3.4 SVN 20130918 . 6.94 |=========================================== Timed MrBayes Analysis 3.1.2 Primate Phylogeny Analysis Seconds < Lower Is Better LLVM Clang 3.3 .............. 15.56 |========================================== LLVM Clang 3.4 SVN 20130918 . 15.59 |========================================== BLAKE2 20121223 Phoronix Test Suite v4.8.2 Cycles Per Byte < Lower Is Better LLVM Clang 3.3 .............. 5.16 |=================================== LLVM Clang 3.4 SVN 20130918 . 6.32 |=========================================== SciMark 2.0 Computational Test: Monte Carlo Mflops > Higher Is Better LLVM Clang 3.3 .............. 508.89 |========================================= LLVM Clang 3.4 SVN 20130918 . 508.28 |========================================= SciMark 2.0 Computational Test: Fast Fourier Transform Mflops > Higher Is Better LLVM Clang 3.3 .............. 350.72 |========================================= LLVM Clang 3.4 SVN 20130918 . 335.97 |======================================= SciMark 2.0 Computational Test: Sparse Matrix Multiply Mflops > Higher Is Better LLVM Clang 3.3 .............. 2598.63 |======================================== LLVM Clang 3.4 SVN 20130918 . 2552.02 |======================================= SciMark 2.0 Computational Test: Dense LU Matrix Factorization Mflops > Higher Is Better LLVM Clang 3.3 .............. 2474.93 |======================== LLVM Clang 3.4 SVN 20130918 . 4195.36 |======================================== SciMark 2.0 Computational Test: Jacobi Successive Over-Relaxation Mflops > Higher Is Better LLVM Clang 3.3 .............. 1371.76 |======================================== LLVM Clang 3.4 SVN 20130918 . 1374.84 |======================================== Himeno Benchmark 3.0 Poisson Pressure Solver MFLOPS > Higher Is Better LLVM Clang 3.3 .............. 1463.72 |======================================= LLVM Clang 3.4 SVN 20130918 . 1496.26 |======================================== Timed ImageMagick Compilation 6.8.1-10 Time To Compile Seconds < Lower Is Better LLVM Clang 3.3 .............. 27.48 |======================================= LLVM Clang 3.4 SVN 20130918 . 29.95 |========================================== Timed PHP Compilation 5.2.9 Time To Compile Seconds < Lower Is Better LLVM Clang 3.3 .............. 17.73 |========================================= LLVM Clang 3.4 SVN 20130918 . 18.10 |========================================== C-Ray 1.1 Total Time Seconds < Lower Is Better LLVM Clang 3.3 .............. 34.23 |========================================== LLVM Clang 3.4 SVN 20130918 . 33.19 |========================================= Smallpt 1.0 Global Illumination Renderer; 100 Samples Seconds < Lower Is Better LLVM Clang 3.3 .............. 174 |============================================ LLVM Clang 3.4 SVN 20130918 . 174 |============================================ FLAC Audio Encoding 1.3.0 WAV To FLAC Seconds < Lower Is Better LLVM Clang 3.3 .............. 6.38 |=========================================== LLVM Clang 3.4 SVN 20130918 . 5.28 |==================================== LAME MP3 Encoding 3.99.3 WAV To MP3 Seconds < Lower Is Better LLVM Clang 3.3 .............. 15.93 |========================================== LLVM Clang 3.4 SVN 20130918 . 13.85 |===================================== N-Queens 1.0 Elapsed Time Seconds < Lower Is Better LLVM Clang 3.3 .............. 243.18 |========================================= LLVM Clang 3.4 SVN 20130918 . 245.20 |=========================================