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* 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
* Missing case: initialization of a global variable of type _Bool.Gravatar xleroy2013-05-08
| | | | | | | 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 Gravatar xleroy2013-05-06
| | | | | | | | "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.Gravatar xleroy2013-04-29
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2218 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* driver: removed option -flonglongGravatar xleroy2013-04-22
| | | | | | | | 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.Gravatar xleroy2013-04-22
| | | | 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:Gravatar xleroy2013-04-20
| | | | | | | | | 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.Gravatar xleroy2013-03-25
| | | | | | | 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. Gravatar xleroy2013-03-23
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2158 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Fixed parsing of hex float literals 0xNNNpMMM.Gravatar xleroy2013-03-11
| | | | 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 opaqueGravatar xleroy2013-03-10
| | | | | | | | 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.Gravatar xleroy2013-02-24
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2126 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Pointers one pastGravatar xleroy2013-02-15
| | | | 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 onGravatar xleroy2013-02-10
| | | | | | | | 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.Gravatar xleroy2013-02-02
| | | | | | | 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 stringGravatar xleroy2013-01-29
| | | | | | | 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.Gravatar xleroy2013-01-29
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2101 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Avoid generating some obviously useless casts.Gravatar xleroy2013-01-08
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2093 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Put clighgen files in exportclight/Gravatar xleroy2013-01-05
| | | | | | | | 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.Gravatar xleroy2013-01-05
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2088 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e