On 7/25/2012 2:55 PM, Dmitry Olshansky wrote:
std\regex.d(5118): Error: undefined identifier 'L_jumptable'
I was afraid of that. You may have to approximate it by loading the
address of L_jumptable into a register and adding it in instead of using
the addressing mode.
I failed to load it in any register or interact with it in any way.
I think I've stalled. There has to be a way to get label address somehow, I got
tired of guess and shot :(
BTW that would allow us to do computed gotos but only in inline asm.
How to get an address:
call jump_table
L1:
...
jump_table:
pop EAX
jmp L1
.. the rest of the jump table ...
Yes, it's awful, but we're just trying to take some measurements here, so it
doesn't matter.
What I meant was add these extra instructions in to the switch version as
dummies in order to make the extra time they take irrelevant to looking at the
difference.
