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* Function types didn't always degrade to pointers like they should. ↵xleroy2010-03-024-23/+26
| | | | | | 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 areasxleroy2010-01-271-17/+21
| | | | 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.xleroy2009-11-192-6/+6
| | | | | | | | | 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 mismatchesxleroy2009-11-191-2/+17
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1180 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* PowerPC/EABI port: preliminary support for #pragma section andxleroy2009-11-031-50/+47
| | | | | | | | | | #pragma use_section. Some clean-ups in Cil2Csyntax. Separate mach-dep parts of extraction/extraction.v into <arch>/extractionMachdep.v git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1167 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Simplified the treatment of the PowerPC small data area; now more specific ↵xleroy2009-11-021-10/+8
| | | | | | to the Diab toolchain. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1165 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Preliminary support for small data area in PowerPC port.xleroy2009-11-011-0/+15
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1163 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Support Clight initializers of the form "int * x = &y;".xleroy2009-11-012-7/+21
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1162 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Problem with const enum initializersxleroy2009-09-151-0/+2
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1146 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Last updates for release 1.5.v1.5xleroy2009-08-281-9/+9
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1142 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Stronger constant folding, esp. w.r.t. floatsxleroy2009-08-211-40/+158
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1137 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* In generated Cminor functions, make sure local variables includexleroy2009-08-202-23/+100
| | | | | | | | all x used as destination of a call [x = f(args)]. This wasn't true before if x was a global C#minor variable. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1136 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* No '\n' in Coq strings...xleroy2009-08-181-1/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1129 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Cil2Csyntax: added goto and labels; added assignment between structsxleroy2009-08-162-64/+170
| | | | | | | | | | | | Kildall: simplified the interface Constprop, CSE, Allocation, Linearize: updated for the new Kildall RTL, LTL: removed the well-formedness condition on the CFG, it is no longer necessary with the new Kildall and it is problematic for validated optimizations. Maps: more efficient implementation of PTree.fold. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1124 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Distinguish two kinds of nonterminating behaviors: silent divergencexleroy2009-08-162-29/+46
| | | | | | | | | | | | | | and reactive divergence. As a consequence: - Removed the Enilinf constructor from traceinf (values of traceinf type are always infinite traces). - Traces are now uniquely defined. - Adapted proofs big step -> small step for Clight and Cminor accordingly. - Strengthened results in driver/Complements accordingly. - Added common/Determinism to collect generic results about deterministic semantics. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1123 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Added 'going wrong' behaviorsxleroy2009-08-052-7/+8
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1120 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Transition semantics for Clight and Csharpminorxleroy2009-08-0310-2342/+2996
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1119 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Adapted to work with Coq 8.2-1v1.4.1xleroy2009-06-057-148/+149
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1076 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Various clean-upsv1.4xleroy2009-04-171-5/+5
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1033 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Honor "static" modifier on C globals.xleroy2009-03-281-10/+44
| | | | | | | | Put "const" globals in read-only section. Revised printing of rlwinm instruction. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1018 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Conflict between extraction/CList and cil/obj/xxx/clist on case-insensitive ↵xleroy2009-01-292-3/+1
| | | | | | file systems. Replaced CList by CoqList and likewise for CString and CInt. Removed useless references to CList in hand-written Caml code. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@951 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Added alignment constraints to memory loads and stores.xleroy2009-01-114-26/+94
| | | | | | | | | | | - In Cminor and below, removed pointer validity check in semantics of comparisons, so that evaluation of expressions is independent of memory state. - In Cminor and below, removed "alloc" instruction. - Cleaned up commented-away parts. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@945 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Reorganized the development, modularizing away machine-dependent parts.xleroy2008-12-302-0/+1493
| | | | | | | | | Started to merge the ARM code generator. Started to add support for PowerPC/EABI. Use ocamlbuild to construct executable from Caml files. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@930 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Replace cast{8,16}{signed,unsigned} with zero_ext and sign_ext.xleroy2008-12-292-12/+12
| | | | | | | | lib/Integers.v: added more properties for ARM port. lib/Coqlib.v: added more properties for division and powers of 2. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@928 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Clight: ajout Econdition, suppression Eindex.xleroy2008-09-276-37/+146
| | | | | | | | caml/PrintCsyntax.ml: afficher les formes a[b] et a->fld. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@789 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Fusion partielle de la branche contsem: xleroy2008-07-081-1/+1
| | | | | | | | | | - semantiques a continuation pour Cminor et CminorSel - goto dans Cminor Suppression de backend/RTLbigstep.v, devenu inutile. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@692 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Utilisation de intoffloatu. Ajout du cas int + ptr.xleroy2008-05-314-15/+42
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@652 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revu les comparaisons de pointeurs: == et <> sont definis entre 2 pointeurs ↵xleroy2008-05-303-28/+37
| | | | | | vers des blocs differents! git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@649 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Introduction de l'operation intuoffloat (float -> unsigned int). Pas encore ↵xleroy2008-05-301-0/+1
| | | | | | utilisee dans le front-end C. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@647 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Ajout license, README, copyright noticesxleroy2008-01-2710-0/+126
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@489 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* In Clight, revised handling of comparisons between pointers and 0xleroy2007-11-134-39/+39
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@447 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Relaxation de la regle d'evaluation Ecastxleroy2007-10-172-4/+4
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@420 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Fusion de la branche restr-cminor. En Clight, C#minor et Cminor, les ↵xleroy2007-08-2810-1783/+2275
| | | | | | expressions sont maintenant pures et les appels de fonctions sont des statements. Ajout de semantiques coinductives pour la divergence en Clight, C#minor, Cminor. Preuve de preservation semantique pour les programmes qui divergent. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@409 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Documentationxleroy2007-08-059-211/+422
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@386 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Fusion des modifications faites sur les branches "tailcalls" et "smallstep".xleroy2007-08-049-1016/+755
| | | | | | | | | | | | En particulier: - Semantiques small-step depuis RTL jusqu'a PPC - Cminor independant du processeur - Ajout passes Selection et Reload - Ajout des langages intermediaires CminorSel et LTLin correspondants - Ajout des tailcalls depuis Cminor jusqu'a PPC git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@384 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Suppression de lib/Sets.v, utilisation de FSet a la place. Generalisation ↵xleroy2007-03-022-3/+5
| | | | | | de Lattice pour utiliser une notion d'egalite possiblement differente de =. Adaptation de Kildall et de ses utilisateurs en consequence. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@182 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Meilleure compilation de la negation booleennexleroy2006-09-195-7/+15
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@112 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Simplification de Cminor: les affectations de variables locales ne sontxleroy2006-09-182-86/+84
| | | | | | | | plus des expressions mais des statements (Eassign -> Sassign). Cela simplifie les preuves et ameliore la qualite du RTL produit. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@111 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revu traitement des structures et unions recursives. Dans Cshmgen, ↵xleroy2006-09-115-41/+45
| | | | | | meilleure compilation de exit_if_false. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@94 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Permettre les casts entre types de fonctionxleroy2006-09-062-13/+21
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@83 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Csem: l'hypothese de typage sur main est inutile (assuree par wt_program)xleroy2006-09-063-10/+21
| | | | | | | | Ctyping: relaxation de l'hypothese de typage sur main Cshmgenproof3: adaptation a ces changements. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@82 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revu traitement des variables globales dans AST.program et dans Globalenvs.xleroy2006-09-059-136/+75
| | | | | | | | Adaptation frontend, backend en consequence. Integration passe C -> C#minor dans common/Main.v. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@77 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revu la repartition des sources Coq en sous-repertoiresxleroy2006-09-043-0/+3591
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@73 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Fusion de la branche "traces":xleroy2006-09-047-0/+4436
- Ajout de traces d'evenements d'E/S dans les semantiques - Ajout constructions switch et allocation dynamique - Initialisation des variables globales - Portage Coq 8.1 beta Debut d'integration du front-end C: - Traduction Clight -> Csharpminor dans cfrontend/ - Modifications de Csharpminor et Globalenvs en consequence. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@72 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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