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1020387
2012 Jan 16
2
[LLVMdev] -march and -mtune options on x86
Let me describe more precisely what I am doing and why the results I got may help improve LLVM's performance on modern x86-64 processors regardless of the front end (GCC, Clang or DragonEgg).
I am running ALL my tests on an Intel Xeon E5540 processor, which is an x86-64 Nehalem processor. The OS is a 64-bit version of Ubuntu. So, I am running all my tests on the same x86-64 machine and am