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Is there any way to disable short-circuit evaluation of expressions in Clang/LLVM? Let's say I have C code like the following: bool validX = get_group_id(0) > 32; int globalIndexY0 = get_group_id(1)*186 + 6*get_local_id(1) + 0 + 1; bool valid0 = validX && globalIndexY0 >= 4 && globalIndexY0 < 3910; int globalIndexY1 = get_group_id(1)*186 + 6*get_local_id(1) + 1 + 1; bool valid1 = validX &&amp...

Justin Holewinski <justin.holewinski at gmail.com> writes: > int globalIndexY2 = get_group_id(1)*186 + 6*get_local_id(1) + 2 + 1; > bool valid2       = validX && globalIndexY2 >= 4 && globalIndexY2 < 3910; > > Clang, even at -O0, is performing short-circuit evaluation of these > expressions, resulting in a fair number of branch instructions being > generated. It has to. This is the semantics of C. Short-circuiting is...

10.10.2011, 18:29, "David A. Greene" <greened at obbligato.org>: > Justin Holewinski <justin.holewinski at gmail.com> writes: > >>  int globalIndexY2 = get_group_id(1)*186 + 6*get_local_id(1) + 2 + 1; >>  bool valid2       = validX && globalIndexY2 >= 4 && globalIndexY2 < 3910; >> >>  Clang, even at -O0, is performing short-circuit evaluation of these >>  expressions, resulting in a fair number of branch instructions being >>  generated. > > It has to.  This is the semantics...

Hey, I want to compute means and standard errors as two tables like this: se<-function(x)sqrt(var(x)/length(x)) object1<-as.data.frame.table(tapply(Data[Year=="1999"],na.rm=T,list(Group[Year=="1999"],Season[Year=="1999"]),mean))