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* Tolerance in parsing of 'section' pragmaGravatar xleroy2014-09-17
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2623 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* More careful detection of inlined builtins. Produces better error messages ↵Gravatar xleroy2014-08-25
| | | | | | if an unsupported __builtin_xxx function is used by mistake. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2617 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Support C99 compound literals (by expansion in Unblock pass).Gravatar xleroy2014-08-21
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2615 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Issue with switch labels that are negative 32-bit integers.Gravatar xleroy2014-08-17
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2567 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Support "switch" statements over 64-bit integersGravatar xleroy2014-08-17
| | | | | | | | | | | | | (in CompCert C to Cminor, included) - Translation of "switch" to decision trees or jumptables made generic over the sizes of integers and moved to the Cminor->CminorSel pass instead of CminorSel->RTL as before. - CminorSel: add "exitexpr" to support the above. - ValueDomain: more precise analysis of comparisons against an integer literal. E.g. "x >=u 0" is always true. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2565 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* All targets: add __builtin_membarGravatar xleroy2014-07-28
| | | | | | | ARM: add __builtin_dsb __builtin_isb git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2554 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of "newspilling" branch:Gravatar xleroy2014-07-23
| | | | | | | | | | | | | | | - Support single-precision floats as first-class values - Introduce chunks Many32, Many64 and types Tany32, Tany64 to support saving and restoring registers without knowing the exact types (int/single/float) of their contents, just their sizes. - Memory model: generalize the opaque encoding of pointers to apply to any value, not just pointers, if chunks Many32/Many64 are selected. - More properties of FP arithmetic proved. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2537 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Cleaner, more resilient parsing of pragmas.Gravatar xleroy2014-06-05
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2507 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Re-added support for "__func__" identifier as per ISO C99.Gravatar xleroy2014-05-15
| | | | | | | | - Support for empty structs and unions - Better handling of "extern" and "extern inline" function definitions. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2493 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Clean-up pass on C types:Gravatar xleroy2014-04-23
| | | | | | | | | | | | | - Ctypes: add useful functions on attributes; remove attrs in typeconv (because attributes are meaningless on r-values) - C2C: fixed missing or redundant Evalof - Cop: ignore attributes in ptr + int and ptr - int (meaningless on r-values); add sanity check between typeconv/classify_binarith and the C99 standard. - cparser: fixed several cases where incorrect type annotations were put on expressions. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2457 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Continued: change typeconv t into incrdecr_type t for Epostincr.Gravatar xleroy2014-04-16
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2456 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Use "incrdecr_type ty" instead of "typeconv ty" as the intermediate typeGravatar xleroy2014-04-15
| | | | | | | for Epostincr operations. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2455 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Constprop: use "not" for "xorimm(-1)"; optimize == 1 and != 0 comparisons ↵Gravatar xleroy2014-04-09
| | | | | | | | | | over booleans. Select*: more systematic constant propagation; don't CP shifts by amounts outside of [0..31]. Driver: timer for whole compilation. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2452 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* __builtin_absfloat can be applied to integers too.Gravatar xleroy2014-03-29
| | | | | | | | More precise classification of float results of arithmetic operations, in preparation for future work on the C/Clight static type system. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2441 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* C: Support array initializers that are too short + default init for remainder.Gravatar xleroy2014-03-28
| | | | | | | | Elab: Handle C99 designated initializers. C2C, Initializers: more precise intermediate AST for initializers. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2439 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Support array initialization lists that are too shortGravatar xleroy2014-03-18
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2432 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Beautify the output.Gravatar xleroy2014-02-21
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2414 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Remove useless checks on type_of_global in dynamic semanticsGravatar xleroy2014-02-20
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2411 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Better printing of integer literals: add U and LL suffixes when needed.Gravatar xleroy2014-01-12
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2405 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Introduce and use the platform-specific Archi module giving:Gravatar xleroy2014-01-03
| | | | | | | | | | - endianness - alignment constraints for 8-byte types (which is 4 for x86 ABI and 8 for other ABIs) - NaN handling options (superceding the Nan module, removed). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2402 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Incomplete types are OK for 'extern' global variables.Gravatar xleroy2014-01-02
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2398 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Fine hair splitting depending on whether va_list is a scalar type (IA32, ↵Gravatar xleroy2014-01-01
| | | | | | ARM) or an array type (PowerPC). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2395 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Experimental support for <stdarg.h>, the GCC way. Works on IA32. To be ↵Gravatar xleroy2014-01-01
| | | | | | tested on PowerPC and ARM. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2394 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Ctypes.sizeof ty = 0 for empty types ty (zero-sized array, empty struct/union).Gravatar xleroy2013-12-30
| | | | | | | __builtin_memcpy_aligned now supports the case sz = 0. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2392 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Improved detection of variables with incomplete types.Gravatar xleroy2013-12-30
| | | | | | | Additional warnings for empty initializer braces and zero-sized arrays. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2390 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* More tolerance for functions declared without a prototypeGravatar xleroy2013-12-28
| | | | | | | | (option -funprototyped, on by default). Error if call to vararg function and -fvararg-calls is off. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2389 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Check in C2C that packed structs were properly emulated.Gravatar xleroy2013-12-28
| | | | | | | PackedStructs.ml: remove "packed" attribute once processed. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2388 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Removed obsolete check on aligned fields.Gravatar xleroy2013-12-28
| | | | | | | More informative "unsupported" error messages. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2387 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Simpler, more robust emulation of calls to variadic functions:Gravatar xleroy2013-12-28
| | | | | | | | | | | | | | - C function types and Cminor signatures annotated by calling conventions. esp. vararg / not vararg - Cshmgen: generate correct code for function call where there are more arguments than listed in the function prototype. This is still undefined behavior according to the formal semantics, but correct code is generated. - C2C, */PrintAsm.ml: remove "printf$iif" hack. - powerpc/, checklink/: don't generate stubs for variadic functions. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2386 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Support "default" cases in the middle of a "switch", not just at the end.Gravatar xleroy2013-12-21
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2383 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of branch value-analysis.Gravatar xleroy2013-12-20
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2381 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised semantics of external functions, continued:Gravatar xleroy2013-11-18
| | | | | | | | | - Also axiomatize the semantics of inline asm - In Cexec, revised parameterization over do_external_function - In Interp.ml, matching changes + suppression of Interp_ext.ml git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2370 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised modeling of external functions and built-in functions: just axiomatizeGravatar xleroy2013-11-17
| | | | | | | them. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2369 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* powerpc/: new unary operation "addsymbol"Gravatar xleroy2013-11-17
| | | | | | | | Support far-data addressing in sections. (Currently ignored in checklink.) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2368 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Suppress warning on derefering volatile composites, because of false positives.Gravatar xleroy2013-11-10
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2365 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Cleaner printing of global variables.Gravatar xleroy2013-11-09
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2364 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Recognize __builtin_fabs as an operator, not just a builtin,Gravatar xleroy2013-11-06
| | | | | | | | | enabling more aggressive optimizations. - Less aggressive CSE for EF_builtin builtins, causes problems for __builtin_write{16,32}_reversed. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2363 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised treatment of _Alignas, for better compatibility with GCC and Clang, ↵Gravatar xleroy2013-11-06
| | | | | | and to avoid wasting global variable space by inflating their sizeof needlessly. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2362 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Error for 'switch' on a 64-bit integer argument.Gravatar xleroy2013-11-04
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2360 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Warn for volatile accesses to compositesGravatar xleroy2013-10-16
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2344 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the "alignas" branch.Gravatar xleroy2013-10-05
| | | | 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 ↵Gravatar xleroy2013-09-14
| | | | | | 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:Gravatar xleroy2013-07-08
| | | | | | | | | | - 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.Gravatar xleroy2013-07-07
| | | | 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 twoGravatar xleroy2013-07-03
| | | | | | | | 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:Gravatar xleroy2013-06-16
| | | | | | | | | | | | | | - 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: Gravatar xleroy2013-05-19
| | | | | | | | - 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.Gravatar xleroy2013-05-19
| | | | | | | | (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).Gravatar xleroy2013-05-17
| | | | 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.Gravatar xleroy2013-05-16
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2251 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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