* [Caml-list] bootstrapping for ocaml's compiler
@ 2012-09-03 19:41 bob zhang
2012-09-04 9:16 ` Andrej Bauer
2012-09-04 9:42 ` Stéphane Glondu
0 siblings, 2 replies; 3+ messages in thread
From: bob zhang @ 2012-09-03 19:41 UTC (permalink / raw)
To: Caml List
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Hi List,
Can anyone tell me that ocaml's native code bootstrapping system can
reach a fixpoint or not?
I am doing my own compiler using ocaml as backend,* I found something
weird: the byte-code *
*compiler can always reach a fix-point, the native-code can reach a
fix-point sometimes, sometimes not.*
*Is this expected behavior or not? Is there any randomized algorithm used
in ocamlopt?*
Many thanks!
--
Regards
-- Bob
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Caml-list] bootstrapping for ocaml's compiler
2012-09-03 19:41 [Caml-list] bootstrapping for ocaml's compiler bob zhang
@ 2012-09-04 9:16 ` Andrej Bauer
2012-09-04 9:42 ` Stéphane Glondu
1 sibling, 0 replies; 3+ messages in thread
From: Andrej Bauer @ 2012-09-04 9:16 UTC (permalink / raw)
To: bob zhang; +Cc: Caml List
Are there timestamps in the compiled native code?
Are hash values for polymorphic variants seeded with external source?
What else could happen?
On Mon, Sep 3, 2012 at 9:41 PM, bob zhang <bobzhang1988@gmail.com> wrote:
> Hi List,
> Can anyone tell me that ocaml's native code bootstrapping system can
> reach a fixpoint or not?
> I am doing my own compiler using ocaml as backend, I found something weird:
> the byte-code
> compiler can always reach a fix-point, the native-code can reach a fix-point
> sometimes, sometimes not.
> Is this expected behavior or not? Is there any randomized algorithm used in
> ocamlopt?
>
> Many thanks!
>
> --
> Regards
> -- Bob
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Caml-list] bootstrapping for ocaml's compiler
2012-09-03 19:41 [Caml-list] bootstrapping for ocaml's compiler bob zhang
2012-09-04 9:16 ` Andrej Bauer
@ 2012-09-04 9:42 ` Stéphane Glondu
1 sibling, 0 replies; 3+ messages in thread
From: Stéphane Glondu @ 2012-09-04 9:42 UTC (permalink / raw)
To: bob zhang; +Cc: Caml List
Le 03/09/2012 21:41, bob zhang a écrit :
> Can anyone tell me that ocaml's native code bootstrapping system can
> reach a fixpoint or not?
> I am doing my own compiler using ocaml as backend,*/I found something
> weird: the byte-code /*
> */compiler can always reach a fix-point, the native-code can reach a
> fix-point sometimes, sometimes not./*
> */Is this expected behavior or not? Is there any randomized algorithm
> used in ocamlopt?/*
What are you comparing?
The underlying toolchain might use randomized algorithms. For example,
GCC can be configured to embed a freshly generated UUID in each
executable it produces. What should be compared is the assembly output
(-S output).
Cheers,
--
Stéphane
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