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If clang/LLVM caught up in generated code performance to GCC then I must admit that is news to me.



Since clang 3.5 (or possibly even earlier), clang has basically been neck-in-neck with GCC. Most benchmarks seem to show the two basically equal to each other, and then there's a handful where clang wins outright and a handful where GCC wins outright. [1]

For my own use-case (a high-performance photorealistic renderer threaded using TBB), my clang builds outperform my gcc builds, but of course that's completely anecdotal and based on just my own use-case.

[1] http://www.phoronix.com/scan.php?page=article&item=gcc49_com...




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