[llvm-commits] x86 branch sequence optimization in LLVM code gen: please review

[Anton Korobeynikov]

Hello Victor,

> Unfortunately, I cannot put it inside brcond.ll because the “ptest” instruction was introduced only with SSE4.1 (i.e. requires “-mcpu=penryn”), while the  current version of brcond.ll is processed with “-mcpu=core2”.
> Will the replacement of–mcpu in brcond.ll with “penryn” be backward-compat with regard to LIT results?
You can have several RUN lines with different FileCheck prefixes.
There are bunch of examples in the current tests.

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With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University