LLVM Clang 3.4 SVN Compiler Tests With Core-AVX2

Written by Michael Larabel in LLVM on 22 September 2013 at 01:57 AM EDT. 1 Comment
LLVM
For those curious about the performance of LLVM/Clang 3.4 -- the current development code of the increasingly-used open-source cross-platform compiler -- here's some new tests done on an Intel Core i7 "Haswell" processor with using the compiler's "core-avx2" optimizations and benchmarks comparing it to the stable LLVM 3.3 release.

Only in a few benchmarks were the C/C++ benchmarks interested in the way of LLVM Clang 3.3 vs. LLVM Clang 3.4 SVN for the Intel Core i7 4750HQ "Haswell" processor found in the System76 Galago UltraPro. The CFLAGS/CXXFLAGS were set to "-03 -march=native" during testing for this CPU with AVX 2.0 capabilities, etc.

All of the benchmark results in full -- along with the complete system details, logs, etc -- can be found on OpenBenchmarking.org via 1309182-SO-LLVMCLANG36. Embedded below are just some of the more interesting Clang compiler benchmark results.
LLVM Clang Intel Compiler Haswell Core-AVX2
LLVM Clang Intel Compiler Haswell Core-AVX2
LLVM Clang Intel Compiler Haswell Core-AVX2
LLVM Clang Intel Compiler Haswell Core-AVX2
LLVM Clang Intel Compiler Haswell Core-AVX2
LLVM Clang Intel Compiler Haswell Core-AVX2
LLVM Clang Intel Compiler Haswell Core-AVX2
LLVM Clang Intel Compiler Haswell Core-AVX2
More benchmarks of the LLVM Clang C/C++ compiler -- along with comparative GCC tests -- will come as the new releases approach and as we discover new and interesting workloads and have access to new hardware platforms.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.

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