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* Support for inline assembly (asm statements).Gravatar xleroy2012-12-18
| | | | | | | cparser: add primitive support for enum types. bitfield emulation: for bitfields with enum type, choose signed/unsigned as appropriate git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2074 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Globalenvs: allocate one-byte block with permissions Nonempty for eachGravatar xleroy2012-11-12
| | | | | | | | | | | function definition, so that comparisons between function pointers are correctly defined. AST, Globalenvs, and many other files: represent programs as a list of (function or variable) definitions instead of two lists, one for functions and the other for variables. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2067 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of branch seq-and-or. See Changelog for details.Gravatar xleroy2012-10-06
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2059 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Fixed 2 errors in revised builtin_vstore. Gravatar xleroy2012-08-22
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2035 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Wrong usage of temps in builtin_volatile_write.Gravatar xleroy2012-08-17
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2030 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Remove Val.is_true and Val.is_false, no longer used.Gravatar xleroy2012-08-06
| | | | | | | Simplified definition of Val.bool_of_val. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2015 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Revised non-overflow constraints on memory injections so that Gravatar xleroy2012-07-23
| | | | | | | | | | injections compose (Values, Memdata, Memory) - Memory chunks: Mfloat64 now has alignment 8; introduced Mfloat64al32 that works like old Mfloat64 (i.e. has alignment 4); simplified handling of memcpy builtin accordingly. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1983 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Support for indirect symbols under MacOS X (final).Gravatar xleroy2012-07-14
| | | | | | | Remove stdio hack in runtime/ git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1979 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Support for MacOS X's indirect symbols. (first try)Gravatar xleroy2012-07-13
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1978 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Strip quotes from section names during #pragma parsing.Gravatar xleroy2012-07-11
| | | | | | | | | Reinstall the quotes when printing asm. The idea is that .sdump files now contain unquoted section names, which is easier on cchecklink. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1967 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Update CombineOp for arm and ia32.Gravatar xleroy2012-07-03
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1950 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Recombine x = cmp(...); if (x == 1) ...Gravatar xleroy2012-07-01
| | | | | | | and x = cmp(...); if (x != 1) ... git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1946 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Added option -falign-functionsGravatar xleroy2012-07-01
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1945 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Use Flocq for floatsGravatar xleroy2012-06-28
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1939 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Make min_int / -1 and min_int % -1 semantically undefinedGravatar xleroy2012-06-09
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1919 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Removed Oandimm, etc, cases, because of 2-address constraints...Gravatar xleroy2012-05-29
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1904 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* CSE: add recognition of some combined operators, conditions, and addressing ↵Gravatar xleroy2012-05-26
| | | | | | | | | | modes (cf. CombineOp.v) Memory model: cleaning up Memdata Inlining and new Constprop: updated for ARM. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1902 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the newmem branch:Gravatar xleroy2012-05-21
| | | | | | | | | | - Revised memory model with Max and Cur permissions, but without bounds - Constant propagation of 'const' globals - Function inlining at RTL level - (Unprovable) elimination of unreferenced static definitions git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1899 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* checklink: first import of Valentin Robert's validator for asm and linkGravatar xleroy2012-03-28
| | | | | | | cparser: renamed Errors to Cerrors; removed packing into Cparser. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1856 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Make CPragmas common to all ports.Gravatar xleroy2012-02-27
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1828 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Take advantage of Cmaskzero and Cmasknotzero.Gravatar xleroy2012-02-24
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1825 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* More aggressive common subexpression elimination (CSE) of memory loads.Gravatar xleroy2012-02-23
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1823 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Simplified and cleaned up the passing of information from C2C to PrintAsm, ↵Gravatar xleroy2012-02-22
| | | | | | as well as the handling of sections. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1822 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the "volatile" branch:Gravatar xleroy2012-02-04
| | | | | | | | | | | | - native treatment of volatile accesses in CompCert C's semantics - translation of volatile accesses to built-ins in SimplExpr - native treatment of struct assignment and passing struct parameter by value - only passing struct result by value remains emulated - in cparser, remove emulations that are no longer used - added C99's type _Bool and used it to express || and && more efficiently. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1814 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Added volatile_read_global and volatile_store_global builtins.Gravatar xleroy2012-01-15
| | | | | | | Finished updating IA32 and ARM ports. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1792 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the nonstrict-ops branch:Gravatar xleroy2012-01-14
| | | | | | | | | | | - Most RTL operators now evaluate to Some Vundef instead of None when undefined behavior occurs. - More aggressive instruction selection. - "Bertotization" of pattern-matchings now implemented by a proper preprocessor. - Cast optimization moved to cfrontend/Cminorgen; removed backend/CastOptim. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1790 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Extraction: map Coq pairs to Caml pairs and Coq chars (type ascii) to Caml charsGravatar xleroy2011-10-18
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1732 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised emulation of packed structsGravatar xleroy2011-10-16
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1729 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Watch out for min_int / -1Gravatar xleroy2011-08-27
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1727 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Cleaned up old commented-out partsGravatar xleroy2011-08-19
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1719 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* More careful treatment of 'load immediate 0' as 'xor self'Gravatar xleroy2011-08-18
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1718 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Forgot to update: adding xchg instructionGravatar xleroy2011-08-16
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1712 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Locations.v: add Loc.diff_dec.Gravatar xleroy2011-08-14
| | | | | | | | ia32: lift restriction that 1st arg of ops cannot be ECX (could be useful for a future, better reloading strategy) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1711 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* IA32 PrintAsm.ml: wrong moves generated in print_builtin_memcpy_bigGravatar xleroy2011-08-10
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1706 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* IA32 port: more faithful treatment of pseudoregister ST0.Gravatar xleroy2011-08-08
| | | | | | | Related general change: support for destroyed_at_moves. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1700 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Cleaned up handling of composite conditionsGravatar xleroy2011-08-05
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1699 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* ARM: added reversed load/store builtins + bswap builtin (to be tested)Gravatar xleroy2011-07-30
| | | | | | | | IA32: added bswap builtin Updated Changelog git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1693 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Added animation of the CompCert C semantics (ccomp -interp)Gravatar xleroy2011-07-28
| | | | | | | | test/regression: int main() so that interpretation works Revised once more implementation of __builtin_memcpy (to check for PPC & ARM) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1688 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of branch new-semantics: revised and strengthened top-level statements ↵Gravatar xleroy2011-07-15
| | | | | | of semantic preservation. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1683 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
* Nicer printing of annotations.Gravatar xleroy2011-05-23
| | | | | | | ia32: support builtins for reversed reads and writes (facilitates testing). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1655 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
* Added pass CleanupLabels to remove unreferenced labels in a proved way.Gravatar xleroy2011-05-08
| | | | | | | | | | ia32/PrintAsm.ml: simplified accordingly; other PrintAsm.ml to be fixed. ia32/Asm.v: Pmov_ri can undef flags (if translated to xor) cparser/Ceval.ml: treat ~ in constant exprs git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1647 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* cparser/Elab: __attribute, not attributeGravatar xleroy2011-04-16
| | | | | | | | ia32/PrintAsm: wrong section name regression: added test attribs1 git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1636 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
* Renamed Machconcr into Machsem.Gravatar xleroy2011-04-09
| | | | | | | | Removed Machabstr and Machabstr2concr, now useless following the reengineering of Stacking. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1633 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
* Use movapd instead of movsd for xmm reg-reg move: it avoids partial register ↵Gravatar xleroy2010-11-28
| | | | | | stalls, resulting in tiny speedups. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1556 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* float->int conversions, continued: weaker axiomatization.Gravatar xleroy2010-10-29
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1545 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