Hello everyone,
I was discussing about arrays in C# with
some colleages and we started to look at
the MSIL code generated for a simple
inialization, for example:
int [] a = { 3, 5, 7 };
using ildasm. We realized that the MSIL
code calls the funtion:
System.Runtime.CompilerServices.RuntimeHelpers::InitializeArray(...)
I wanted to see the code for InitializeArray(...)
but it is declared "internalcall" so I thought
I could find it somewhere in sscli code
but the only thing I found was in the C# file
for the corresponding class and it was declared
extern.
If clix can find it, it is somewhere. How do
we go about finding the code for such a function,
in general? Richter's book explain the meaning
of the tokens used in the ildasm output and there
is some code in the vm directory that seem to be
relevant but what is the exact mapping?
I was also trying to compare the code execution
under rotor and standard CLI with cordbg. When
you use rotor, the number of instructions executed
for a statement, like the one above, as given with
the wt command under cordbg is twice the number when
run under the standard CLI. The standard CLI is
suppose to use the same backend as the C++ compiler
but is the rotor implementation of the Jiter so
much slower?
Some light would be appreciated.
Daniel Perron
