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In some confiurations LLVM doesn't seem to do this optimization

Fix #16822
@StefanKarpinski
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I went through the changes in #16024 and this seems to be the only one that could have caused a regression. There's also UInt8('\0') in @printf but since that's a constant, it seems far less likely for LLVM to fail to optimize it.

@nalimilan
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+1 if that fixes the regression for now. But have you found out when the optimization happens and when it doesn't? That really sounds like an important point if we don't want the change to introduce similar regressions in user code.

@StefanKarpinski
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Failure was a server response error.

@StefanKarpinski StefanKarpinski merged commit 2119ea6 into master Jun 13, 2016
@StefanKarpinski StefanKarpinski deleted the sk/countlinesfaster branch June 13, 2016 18:26
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3 participants