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Benchmarking LLVM & Clang Against GCC 4.5

Michael Larabel

Published on 21 April 2010
Written by Michael Larabel
Page 4 of 6 - 17 Comments

The Clang test was unsuccessful with the Gcrypt library, but the LLVM-GCC number shows it performing at the same pace as GCC 4.5.0.

LLVM-GCC was running well with the multi-threaded C-Ray ray-tracing engine, which was very close to being the compiler that delivered the best numbers. However, Clang was running about 4% slower than GCC 4.5.0, but still it was faster than GCC 4.4.0.

LLVM-GCC and Clang exhibited some nice performance boosts with their Dhrystone 2 performance via the BYTE Unix Benchmark. While a synthetic test, LLVM-GCC was 43% faster than GCC 4.5.0 and Clang was 28% faster than this newest version of the GNU Compiler Collection.

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