Timestamp:
Jan 23, 2013, 2:38:06 PM (8 years ago)
Author:
garnier
Message:

modified Cexec/Csem? semantics:
. force andbool and orbool types to be Tint sz sg, fail otherwise
. cast result of evaluation to (bitvector sz)
. in lvalue evaluation, field offset for structs is now 16 bit instead of 32
/!\ induction principles modified accordingly
. soundness and correctness adapted

modified label/labelSimulation:
. andbool and orbool are modified so that the true/false constants are

casted to the (integer) type of the enclosing expression, to match
Csem/Cexec?. If the type is not an integer, default on 32 bits.

. labelSimulation proof adapted to match changes.

proof of simulation for expressions Cl to Cm finished
. caveat : eats up all my RAM (8gb) when using matita (not matitac), barely typecheckable
. moved some lemmas from toCminorCorrectness.ma to new file toCminorOps.ma

and frontend_misc.ma to alleviate this, to no avail - more radical splitting required ?

slight modification in SimplifyCasts? to take into account modifications in semantics,
removed some duplicate lemmas and replaced them by wrappers to avoid breaking the
rest of the development.

File:
1 added

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