Moves the alloc_dbginfo type to Debuginfo, to avoid a circular
dependency on architectures that use Branch_relaxation.
This commit generates frame tables with allocation sizes on all
architectures, but does not yet update the allocation code for
non-amd64 backends.
This code is adapted from jhjourdan's 2c93ca1e711. Comballoc is
extended to keep track of allocation sizes and debug info for each
allocation, and the frame table format is modified to store them.
The native code GC-entry logic is changed to match bytecode, by
calling the garbage collector at most once per allocation.
amd64 only, for now.
Since we cannot access backtrace position in cmmgen.ml anymore,
Cmm.raise_kind in removed. Instead, we use Lambda.raise_kind. When
assembly code is generated, we reset the backtrace position to 0 in the
case of regular raise. Importantly, the semantics remains the same.
since the semantic changed. There is no need to check Clflags.debug
anymore Raise_withtrace, means that traces must be computed (if the
runtime boolean is true).
The fix consists in representing float literals by their bit patterns (int64) in the Mach and Linear intermediate languages.
A regression test was added to the test suite.
(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
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
This way we can avoid having to duplicate the same functionality for
every backend, and we may also benefit from other optimizations performed
during C-- generation.
git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14303 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Strength reduction sur les multiplications, divisions, modulo de
puissances de 2.
git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@147 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Meilleure traduction lambda -> C-- pour les definitions de structures
toplevel.
git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@109 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Stephen Dolan
Greta Yorsh
KC Sivaramakrishnan
Vincent Laviron
Mark Shinwell
Pierre Chambart
Leo White
Pierre Chambart
Mark Shinwell
François Bobot
Alain Frisch
Damien Doligez
Xavier Leroy
Benedikt Meurer
Damien Doligez
Luc Maranget