Add OCAMLPARAM option 'can-discard' to remove warnings about unknown version-specific arguments

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14653 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
#6273: fix.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14654 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Better locations.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14658 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Make Parsetree more uniform by keeping locations in all records which have attributes.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14659 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
More precise location on 'name must be unique' error (report the identifier name instead of the whole declaration).

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14660 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
update expected test results following commit 14660

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14663 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Remove Ast_helper.Convenience submodule.  This is better located in the ppx_tools package.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14664 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Add a .gitignore file for git users

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14665 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Fix doc for unmarshaled exception values and structural comparison.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14669 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
#6119: document that the set of values contained in a closure is not specified and how this impacts marshaling references captured in closures, for instance.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14670 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Avoid bad error report when a registered toplevel primitive raises Not_found.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14671 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
- Constant ropagation for float and int32/int64/nativeint arithmetic.
  Constant propagation for floats can be turned off with option
  -no-float-const-prop, for codes that change FP rounding modes at
  run-time.
- Clambda / C-- / Mach: represent float constants as FP numbers of type 
  float rather than literals of type string.
- Tested for AMD64; other archs need testing.


git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14673 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Do not add absolute paths for information added to
the local environment in Env.components_of_module_make.
Fixes the bug reported by Mark Shinwell on caml-devel,
on 2014-04-23. This bug was related to module aliases.


git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14674 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Follow-up to commit 14673: Iconst_float now takes a float, no longer a string.


git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14675 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
update to use the git version of camlp5

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14679 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
fix some whitespace

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14680 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Follow-up to commit 14673: MASM has its own syntax for hex constants


git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14683 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
New back-end optimization pass: dead code elimination.
(Removes arithmetic and load instructions whose results are unused.)
(Cherry-picked from branch backend-optim.)


git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14686 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
ID comments are so passé.


git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14687 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
New back-end optimization pass: common subexpression elimination (CSE).
(Reuses results of previous computations instead of recomputing them.)
(Cherry-picked from branch backend-optim.)
Tested on amd64/linux and i386/linux.
Other back-ends compile (after assorted updates) but are untested.


git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14688 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02