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* Warn for volatile accesses to compositesxleroy2013-10-161-0/+8
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2344 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the "alignas" branch.xleroy2013-10-0511-137/+234
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2342 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Change the way arguments to __builtin_annot are converted. Use the same ↵xleroy2013-09-141-2/+6
| | | | | | conventions as other variadic functions such as printf(). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2325 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised handling of int->float conversions:xleroy2013-07-084-14/+25
| | | | | | | | | | - introduce Float.floatofint{,u} and use it in the semantics of C - prove that it is equivalent to int->double conversion followed by double->float rounding, and use this fact to justify code generation in Cshmgen. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2294 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Bad printing of alignment on 'comm' symbols.xleroy2013-07-071-2/+6
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2291 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Treat casts int64 -> float32 as primitive operations instead of twoxleroy2013-07-035-14/+21
| | | | | | | | casts int64 -> float64 -> float32. The latter causes double rounding errors. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2290 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the "princeton" branch:xleroy2013-06-169-244/+312
| | | | | | | | | | | | | | - Define type "block" as "positive" instead of "Z". - Strengthen mem_unchanged_on so that the permissions are identical, instead of possibly increasing. - Move mem_unchanged_on from Events to Memory.Mem. - Define it in terms of mem_contents rather than in terms of Mem.load. - ExportClight: try to name temporaries introduced by SimplExpr - SimplExpr: avoid reusing temporaries between different functions, instead, thread a single generator through all functions. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2276 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the float32 branch: xleroy2013-05-192-1/+8
| | | | | | | | - added RTL type "Tsingle" - ABI-compatible passing of single-precision floats on ARM and x86 git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2260 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Issue with simplification of nested ?: expressions of different types.xleroy2013-05-193-85/+129
| | | | | | | | (Ill-typed Clight/Cminor/RTL code was generated due to incorrect reuse of destination temporary.) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2257 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Preliminary support for debugging info (-g).xleroy2013-05-172-31/+58
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2253 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* "->" can be applied to an array, not just a pointer.xleroy2013-05-161-1/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2251 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Missing case: initialization of a global variable of type _Bool.xleroy2013-05-082-1/+2
| | | | | | | Added corresponding test case. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2242 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised semantics and compilation of 2-argument C operators to better match xleroy2013-05-063-194/+152
| | | | | | | | "the usual binary conversions" and be more robust towards future extensions e.g. with 32-bit float values. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2239 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Expand 64-bit integer comparisons into 32-bit integer comparisons.xleroy2013-04-293-4/+13
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2218 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* driver: removed option -flonglongxleroy2013-04-224-25/+52
| | | | | | | | test/c: added SHA3 cfrontend: support casts between long long and pointers, and comparisons between them. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2213 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Labeled statements inside switch were incorrectly processed.xleroy2013-04-221-0/+3
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2211 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Big merge of the newregalloc-int64 branch. Lots of changes in two directions:xleroy2013-04-2019-1084/+1261
| | | | | | | | | 1- new register allocator (+ live range splitting, spilling&reloading, etc) based on a posteriori validation using the Rideau-Leroy algorithm 2- support for 64-bit integer arithmetic (type "long long"). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2200 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Error when calling un-prototyped function.xleroy2013-03-251-6/+8
| | | | | | | Removed warning "un-prototyped function type", fires too often. The important thing is to mark errors when declaring and calling unproto fns. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2160 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Watch out for behaviors exponential in the nesting of struct/union types. xleroy2013-03-235-66/+76
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2158 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Fixed parsing of hex float literals 0xNNNpMMM.xleroy2013-03-111-1/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2144 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Glasnost: making transparent a number of definitions that were opaquexleroy2013-03-103-14/+8
| | | | | | | | for no good reason. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2140 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Constant propagation within __builtin_annot.xleroy2013-02-242-6/+9
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2126 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Pointers one pastxleroy2013-02-155-51/+82
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2118 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* lib/Integers.v: revised and extended, faster implementation based onxleroy2013-02-103-41/+38
| | | | | | | | bit-level operations provided by ZArith in Coq 8.4. Other modules: adapted accordingly. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2110 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Errors for excessively large global variables or stack frames.xleroy2013-02-021-1/+5
| | | | | | | test/: update Makefiles so that "all" is the default target. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2107 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Camlcoq.ml: bug in conversion Z to stringv1.12.1xleroy2013-01-291-1/+1
| | | | | | | PrintClight: forgot "$" prefix on temporary names git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2102 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Ported to Coq 8.4pl1. Merge of branches/coq-8.4.xleroy2013-01-2912-436/+454
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2101 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Avoid generating some obviously useless casts.xleroy2013-01-082-2/+36
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2093 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Put clighgen files in exportclight/xleroy2013-01-051-538/+0
| | | | | | | | Short doc in exportclight/README git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2089 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Print Swhile loops. Fix indentation.xleroy2013-01-051-8/+12
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2088 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Remove some useless "Require".xleroy2012-12-309-12/+0
| | | | | | | Update ARM port. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2085 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the clightgen branch:xleroy2012-12-2916-2562/+4341
| | | | | | | | | | | | | | | | | | - Alternate semantics for Clight where function parameters are temporaries, not variables - New pass SimplLocals that turns non-addressed local variables into temporaries - Simplified Csharpminor, Cshmgen and Cminorgen accordingly - SimplExpr starts its temporaries above variable names, therefoe Cminorgen no longer needs to encode variable names and temps names. - Simplified Cminor parser & printer, as well as Errors, accordingly. - New tool clightgen to produce Clight AST in Coq-parsable .v files. - Removed side condition "return type is void" on rules skip_seq in the semantics of CompCert C, Clight, C#minor, Cminor. - Adapted RTLgenproof accordingly (now uses a memory extension). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2083 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Support for inline assembly (asm statements).xleroy2012-12-182-2/+28
| | | | | | | 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 eachxleroy2012-11-127-114/+106
| | | | | | | | | | | 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
* Flocq-based parsing of floating-point literals (Jacques-Henri Jourdan)xleroy2012-11-031-2/+48
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2065 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Clight: split off the big step semantics in ClightBigstep.xleroy2012-10-143-562/+693
| | | | | | | Cstrategy: updated the big-step semantics with Eseqand and Eseqor. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2062 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Make Clight independent of CompCert C.xleroy2012-10-0817-1364/+1493
| | | | | | | Common parts are factored out in cfrontend/Ctypes.v and cfrontend/Cop.v git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2060 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of branch seq-and-or. See Changelog for details.xleroy2012-10-0618-1935/+2036
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2059 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Remove Val.is_true and Val.is_false, no longer used.xleroy2012-08-061-4/+2
| | | | | | | Simplified definition of Val.bool_of_val. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2015 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Forgot to collect types of expressionsxleroy2012-07-282-2/+6
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1984 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Revised non-overflow constraints on memory injections so that xleroy2012-07-236-18/+19
| | | | | | | | | | 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
* Strip quotes from section names during #pragma parsing.xleroy2012-07-111-2/+2
| | | | | | | | | 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
* Accept long double literals if -flongdouble is given.xleroy2012-07-101-1/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1965 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revert unintentional commit #1955xleroy2012-07-062-7/+6
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1957 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Ajout trunk CompCertblazy2012-07-042-6/+7
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1955 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* More aggressive 'uncasting' before storing small integersxleroy2012-06-302-104/+145
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1944 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Use Flocq for floatsxleroy2012-06-283-5/+5
| | | | 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 undefinedxleroy2012-06-093-8/+14
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1919 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* CSE: add recognition of some combined operators, conditions, and addressing ↵xleroy2012-05-261-2/+2
| | | | | | | | | | 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:xleroy2012-05-213-150/+126
| | | | | | | | | | - 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