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The name_of_register and register_of_name function are shared between
all architectures and can be moved in a common file.
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* Do not use `Pervasives.xxx` qualified names
Starting with OCaml 4.08, `Pervasives` is deprecated in favor of `Stdlib`,
and uses of `Pervasives` cause fatal warnings.
This commit uses unqualified names instead, as no ambiguity occurs.
* Clarify "open" statements
OCaml 4.08.0 has stricter warnings concerning open statements that
shadow module names.
Closes: #300
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Locations are only used in two functions and can be referenced
there directly.
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The code was mostly there for documentation effort. So warning
27 is deactivated again.
Bug 18349
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Removed some unused variables, functions etc. and resolved some
problems which occur if all warnings except 3,4,9 and 29 are active.
Bug 18394.
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Before, the back-end languages had distinct instructions
- Iannot for annotations, taking structured expressions (annot_arg)
as arguments, and producing no results'
- Ibuiltin for other builtins, using simple pseudoregs/locations/registers
as arguments and results.
This branch enriches Ibuiltin instructions so that they take structured
expressions (builtin_arg and builtin_res) as arguments and results.
This way,
- Annotations fit the general pattern of builtin functions,
so Iannot instructions are removed.
- EF_vload_global and EF_vstore_global become useless, as the
same optimization can be achieved by EF_vload/vstore taking
a structured argument of the "address of global" kind.
- Better code can be generated for builtin_memcpy between stack locations,
or volatile accesses to stack locations.
Finally, this commit also introduces a new kind of external function,
EF_debug, which is like EF_annot but produces no observable events.
It will be used later to transport debug info through the back-end,
without preventing optimizations.
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- Support single-precision floats as first-class values
- Introduce chunks Many32, Many64 and types Tany32, Tany64 to
support saving and restoring registers without knowing
the exact types (int/single/float) of their contents, just
their sizes.
- Memory model: generalize the opaque encoding of pointers to
apply to any value, not just pointers, if chunks Many32/Many64
are selected.
- More properties of FP arithmetic proved.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2537 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2337 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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- added RTL type "Tsingle"
- ABI-compatible passing of single-precision floats on ARM and x86
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2260 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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1- new register allocator (+ live range splitting, spilling&reloading, etc)
based on a posteriori validation using the Rideau-Leroy algorithm
2- support for 64-bit integer arithmetic (type "long long").
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2200 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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