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On Jun 11, 2008, at 6:27 AM, Florian Brandner wrote: > On Thursday 08 May 2008 18:33:48 Adrian Prantl wrote: >> we noticed that llvmgcc4.2-2.2 sometimes generates non-natural loops >> when compiling to bytecode without any optimizations. Apparently what >> happens is that the loop header is duplicated, which results in two >> entry points for the loop. > > this is

On Thursday 08 May 2008 18:33:48 Adrian Prantl wrote: > we noticed that llvmgcc4.2-2.2 sometimes generates non-natural loops > when compiling to bytecode without any optimizations. Apparently what > happens is that the loop header is duplicated, which results in two > entry points for the loop. this is actually a problem with the tailduplication pass of llvm. it does not consider