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2013 Aug 09
1
a fast table() for the 1D case
...t to 'x'
class(ans) <- "table"
ans
}
table1D() also fixes some issues with base::table() that can be exposed
by running the tests below.
test_table <- function(FUN_NAME)
{
FUN <- match.fun(FUN_NAME)
.make_target <- function(target_names, target_data)
{
ans <- array(target_data)
dimnames(ans) <- list(as.character(target_names))
names(dimnames(ans)) <- "x"
class(ans) <- "table"
ans
}
.check_identical <- function(target, current, varname, extra_args)...
2009 Feb 19
6
[LLVMdev] Improving performance with optimization passes
...oca a struct, store a struct into it and
read only one field without using the rest of the struct) and this does not
appear to be optimized away.
I simply copied the use of PassManager from the Kaleidoscope tutorial:
let pm = PassManager.create_function mp in
TargetData.add (ExecutionEngine.target_data ee) pm;
add_constant_propagation pm;
(* Do simple "peephole" optimizations and bit-twiddling optzn. *)
add_instruction_combining pm;
(* reassociate expressions. *)
add_reassociation pm;
(* Eliminate Common SubExpressions. *)
add_gvn pm;
(* Simplify the control flow gr...