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* Merge of the reuse-temps branch:Gravatar xleroy2010-09-02
| | | | | | | | | | | | - Reload temporaries are marked as destroyed (set to Vundef) across operations in the semantics of LTL, LTLin, Linear and Mach, allowing Asmgen to reuse them. - Added IA32 port. - Cleaned up float conversions and axiomatization of floats. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1499 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Integers: cleaned up bitwise operations, redefined shr, zero_ext and sign_extGravatar xleroy2010-08-21
| | | | | | | | | as bitwise operations rather than arithmetic ones. CastOptimproof: fixed for ARM port. Other files: adapted to changes in Integers. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1472 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
* All axioms used in the CompCert developmentGravatar xleroy2010-06-28
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1355 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merging the Princeton implementation of the memory model. Separate axioms ↵Gravatar xleroy2010-06-28
| | | | | | in file lib/Axioms.v. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1354 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Typo in documentationGravatar xleroy2010-05-26
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1347 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Fewer float axioms.Gravatar xleroy2010-05-09
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1343 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
* Revised encoding/decoding of floatsGravatar xleroy2010-05-09
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1341 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* More theorems about sign and zero extensionsGravatar xleroy2010-05-05
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1334 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
* 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
* MAJ extraction after changes in IntegersGravatar xleroy2009-12-16
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1200 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
* Cleaned up list_drop.Gravatar xleroy2009-11-18
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1178 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* More realistic treatment of jump tables: show the absence of overflow when ↵Gravatar xleroy2009-11-10
| | | | | | accessing the table git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1172 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Added support for jump tables in back end.Gravatar xleroy2009-11-10
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1171 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Coloringaux: make identifiers unique; special treatment of precolored Gravatar xleroy2009-08-26
| | | | | | | | | | nodes a la Appel and George. Maps: in PTree.combine, compress useless subtrees. Lattice: more efficient implementation of LPMap. Makefile: build profiling version git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1139 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Cil2Csyntax: added goto and labels; added assignment between structsGravatar xleroy2009-08-16
| | | | | | | | | | | | 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
* Unionfind data structure, used in new implementation of backend/TunnelingGravatar xleroy2009-08-16
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1122 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Added 'going wrong' behaviorsGravatar xleroy2009-08-05
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1120 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Use Extraction BlacklistGravatar xleroy2009-07-25
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1114 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Adapted to work with Coq 8.2-1Gravatar xleroy2009-06-05
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1076 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Reserve register GPR13 for compatibility with EABI. Optimize operations 'x ↵Gravatar xleroy2009-02-26
| | | | | | >= 0' and 'x < 0'. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@999 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Conflict between extraction/CList and cil/obj/xxx/clist on case-insensitive ↵Gravatar xleroy2009-01-29
| | | | | | 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.Gravatar xleroy2009-01-11
| | | | | | | | | | | - 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.Gravatar xleroy2008-12-30
| | | | | | | | | 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.Gravatar xleroy2008-12-29
| | | | | | | | 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
* Introduction de l'operation intuoffloat (float -> unsigned int). Pas encore ↵Gravatar xleroy2008-05-30
| | | | | | utilisee dans le front-end C. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@647 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Suppression de 'exten', inutiliseGravatar xleroy2008-05-30
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@646 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Ajout license, README, copyright noticesGravatar xleroy2008-01-27
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@489 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Function -> Definition (probleme de performance avec Coq8.1pl3)Gravatar xleroy2008-01-07
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@470 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Ajout corollaires et overlap pour le papier JAR (pas encore utilises dans ↵Gravatar xleroy2007-12-08
| | | | | | Compcert) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@460 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Fusion des modifications faites sur les branches "tailcalls" et "smallstep".Gravatar xleroy2007-08-04
| | | | | | | | | | | | 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
* Utilisation de FunctionGravatar xleroy2007-03-23
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@210 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* CommentairesGravatar xleroy2007-03-05
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@184 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Suppression de lib/Sets.v, utilisation de FSet a la place. Generalisation ↵Gravatar xleroy2007-03-02
| | | | | | 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
* Preuve des 2 axiomes restantsGravatar xleroy2007-03-02
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@179 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Ajout lemmes utiles sur egalite decidableGravatar xleroy2007-03-02
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@178 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Ajout operation eq dans PMap et IndexedMapGravatar xleroy2007-01-03
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@158 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Petites adaptations pour Coq 8.1gammaGravatar xleroy2006-11-11
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@135 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Lever la restriction sur les fonctions externes, restriction qui exigeait ↵Gravatar xleroy2006-10-22
| | | | | | que tous les arguments resident en registres git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@125 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Fusion de la branche "traces":Gravatar xleroy2006-09-04
| | | | | | | | | | | | | - 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
* Initial import of compcertGravatar xleroy2006-02-09
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e