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* Fix treatment of function pointers at function calls in the CompCert C and ↵Gravatar xleroy2011-07-14
| | | | | | Clight semantics git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1680 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised handling of annotation statements, and more generally built-in ↵Gravatar xleroy2011-06-13
| | | | | | functions, and more generally external functions git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1672 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Minor update in Clight (big-step)Gravatar blazy2011-06-08
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1670 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Ajout big-step Clight et preuve big-step -> small-stepGravatar blazy2011-05-25
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1659 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* cparser: support for attributes over struct and union.Gravatar xleroy2011-05-12
| | | | | | | | cparser: added experimental emulation of packed structs (PackedStruct.ml) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1650 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* cparser/StructAssign: always use __builtin_memcpy + alignment indicationGravatar xleroy2011-05-11
| | | | | | | | | | (simpler and globally more efficient) cfrontend/C2C.ml: specialization of __builtin_memcpy over size */PrintAsm.ml: revised expansion of __builtin_memcpy_* ia32/Asm.ml: typo in comment git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1649 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Preliminary support for 'aligned' and 'section' attributes, gcc-style. ↵Gravatar xleroy2011-04-16
| | | | | | New-style handling of sections for IA32 and ARM. Work in progress, to be tested. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1635 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of branch "unsigned-offsets":Gravatar xleroy2011-04-09
| | | | | | | | | | | | | | - In pointer values "Vptr b ofs", interpret "ofs" as an unsigned int. (Fixes issue with wrong comparison of pointers across 0x8000_0000) - Revised Stacking pass to not use negative SP offsets. - Add pointer validity checks to Cminor ... Mach to support the use of memory injections in Stacking. - Cleaned up Stacklayout modules. - IA32: improved code generation for Mgetparam. - ARM: improved code generation for op-immediate instructions. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1632 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Special case for while(1), for(..., 1, ...) and do ... while(0) loops.Gravatar xleroy2011-03-15
| | | | | | | | Don't wait until Constprop to get rid of trivial loop tests; instead, produces better-looking Cminor. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1610 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Incompatibility 8.3 / 8.3pl1Gravatar xleroy2011-03-14
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1606 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Slightly nicer semantics for initializationGravatar xleroy2011-03-13
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1604 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* More global initialization work done and proved in Coq.Gravatar xleroy2011-03-13
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1603 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Initializers for global variables: compile-time evaluation of expressions ↵Gravatar xleroy2011-03-12
| | | | | | done in Coq (module Initializers), using the same primitives as those for CompCert C's semantics. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1602 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised signed/unsigned char handling.Gravatar xleroy2011-03-10
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1599 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Treat "char" as unsigned OR signed depending on the configuration.Gravatar xleroy2011-03-09
| | | | | | | Fixed infinite expansion of some recursive struct type where recursion goes through a typeded. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1596 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Float.intoffloat and Float.intuoffloat are now partial functions.Gravatar xleroy2010-10-28
| | | | | | | (May fail if float is too big to be converted.) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1544 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Updates for IA32-Cygwin.Gravatar xleroy2010-09-08
| | | | | | | | cparser/Elab.ml: tolerate changes in qualifiers in ?: cfrontend/C2C.ml: revise info attached to atoms; treat inline functions as static. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1506 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Better emulation of long long as a struct.Gravatar xleroy2010-09-04
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1500 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Adding __builtin_annotationGravatar xleroy2010-09-01
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1497 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Nettoyages pour docGravatar xleroy2010-08-18
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1471 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Removed useless constraints on return type at Sreturn instructionsGravatar xleroy2010-08-18
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1470 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Copyright bannerGravatar xleroy2010-08-18
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1469 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Renamed C2Clight into C2CGravatar xleroy2010-08-18
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1468 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of branches/full-expr-4:Gravatar xleroy2010-08-18
| | | | | | | | | | | | | | | | | | | | | | - Csyntax, Csem: source C language has side-effects within expressions, performs implicit casts, and has nondeterministic reduction semantics for expressions - Cstrategy: deterministic red. sem. for the above - Clight: the previous source C language, with pure expressions. Added: temporary variables + implicit casts. - New pass SimplExpr to pull side-effects out of expressions (previously done in untrusted Caml code in cparser/) - Csharpminor: added temporary variables to match Clight. - Cminorgen: adapted, removed cast optimization (moved to back-end) - CastOptim: RTL-level optimization of casts - cparser: transformations Bitfields, StructByValue and StructAssign now work on non-simplified expressions - Added pretty-printers for several intermediate languages, and matching -dxxx command-line flags. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1467 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Support for inlined built-ins.Gravatar xleroy2010-06-29
| | | | | | | | | | | | | AST: add ef_inline flag to external functions. Selection: recognize calls to inlined built-ins and inline them as Sbuiltin. CminorSel to Asm: added Sbuiltin/Ibuiltin instruction. PrintAsm: adapted expansion of builtins. C2Clight: adapted detection of builtins. Conventions: refactored in a machine-independent part (backend/Conventions) and a machine-dependent part (ARCH/SYS/Conventions1). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1356 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Updated Caml parts to match new representation for global variables.Gravatar xleroy2010-05-26
| | | | | | | */PrintAsm.ml: watch out for large stack frames in Pallocframe. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1349 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* More faithful semantics for volatile reads and writes.Gravatar xleroy2010-05-23
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1346 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Extended traces so that pointers within globals are supported as event values.Gravatar xleroy2010-05-10
| | | | | | | | - Revised handling of volatile reads: the execution environment dictates the value read, via the trace of events. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1345 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Suppressed axioms Float.eq_zero_{true,false}, since the latter isGravatar xleroy2010-05-09
| | | | | | | | | | wrong because of +0.0 / -0.0. Adapted Clight semantics accordingly. (Truth value of a float is defined by comparison Float.cmp Ceq with 0.0, no longer by structural equality.) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1342 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Cleaned up handling of linker sections.Gravatar xleroy2010-05-08
| | | | | | | Minor updates on ARM code generator. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1339 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Strengthen chunktype inference and use it to remove some useless casts.Gravatar xleroy2010-05-05
| | | | | | | Finished proof of chunktype_compat, which was incomplete. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1335 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Add "fabs" (floating-point absolute value) as a unary operator inGravatar xleroy2010-05-02
| | | | | | | Clight and C#minor. Recognize __builtin_fabs and turn it into this operator. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1329 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* __builtin_memcpy, continued.Gravatar xleroy2010-04-17
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1320 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Support __builtin_memcpy; use it for struct assignmentGravatar xleroy2010-04-17
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1319 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* PowerPC: Gravatar xleroy2010-04-10
| | | | | | | | | - added __builtin_trap() - generate .size and .type directives - use natural alignment for variables git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1315 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Bug fix: infinite loop in cparser/ on bit field of size 32 bits.Gravatar xleroy2010-04-09
| | | | | | | | Algorithmic efficiency: in cparser/, precompute sizeof and alignof of composites. Code cleanup: introduced Cutil.composite_info_{def,decl} git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1312 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Wrong type for __builtin_volatile_*_int32Gravatar xleroy2010-04-02
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1309 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* TypoGravatar xleroy2010-03-28
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1293 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Bug in multidimensional read-only arraysGravatar xleroy2010-03-13
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1290 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Handling of volatile accesses through builtin functions.Gravatar xleroy2010-03-08
| | | | | | | | | Added support for processor-specific builtin functions. Added some PowerPC instructions as builtins. Updated #pragma section handling. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1285 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Handling of builtins, continued.Gravatar xleroy2010-03-07
| | | | | | | PrintCsyntax, PrintAsm: improve printing of float literals. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1284 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the newmem and newextcalls branches:Gravatar xleroy2010-03-07
| | | | | | | | | | - Revised memory model with concrete representation of ints & floats, and per-byte access permissions - Revised Globalenvs implementation - Matching changes in all languages and proofs. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1282 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Suppressed Init_pointer, now useless. Improved printing of strings in ↵Gravatar xleroy2010-03-03
| | | | | | generated .s git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1274 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Detect struct assignment. Silence some warningsGravatar xleroy2010-03-03
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1273 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Getting rid of CILGravatar xleroy2010-03-03
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1270 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Switching to the new C parser/elaborator/simplifierGravatar xleroy2010-03-03
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1269 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Function types didn't always degrade to pointers like they should. ↵Gravatar xleroy2010-03-02
| | | | | | Introduced and used Csyntax.typeconv to address this issue and reduce the number of cases in the classify functions git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1266 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised handling of #pragma section and small data areasGravatar xleroy2010-01-27
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1235 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised lib/Integers.v to make it parametric w.r.t. word size.Gravatar xleroy2009-11-19
| | | | | | | | | Introduced Int.iwordsize and used it in place of "Int.repr 32" or "Int.repr (Z_of_nat wordsize)". git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1182 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Unsupported: return/return type mismatchesGravatar xleroy2009-11-19
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1180 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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