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* Merge of branch linear-typing:Gravatar xleroy2014-04-06
| | | | | | | | | | | | | | | | | | | | | | | 1) Revised division of labor between RTLtyping and Lineartyping: - RTLtyping no longer keeps track of single-precision floats, switches from subtype-based inference to unification-based inference. - Unityping: new library for unification-based inference. - Locations: don't normalize at assignment in a stack slot - Allocation, Allocproof: simplify accordingly. - Lineartyping: add inference of locations that contain a single-precision float. - Stackingproof: adapted accordingly. This addresses a defect report whereas RTLtyping was rejecting code that used a RTL pseudoreg to hold both double- and single-precision floats (see test/regression/singlefloats.c). This corresponds to commits 2435+2436 plus improvements in Lineartyping. 2) Add -dtimings option to measure compilation times. Moved call to C parser from Elab to Parse, to make it easier to measure parsing time independently of elaboration time. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2449 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* "->" can also be applied to array types, not just pointer types.Gravatar xleroy2014-03-30
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2442 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
* Do not transform __builtin_va_arg for a struct or union type, this causesGravatar xleroy2014-02-24
| | | | | | | | an ugly error message in the back-end. Rather, leave it as is, and let C2C handle the error. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2422 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Wrong type used for transforming lval = f(...)Gravatar xleroy2014-02-21
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2413 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Add option -Os to optimize for code size rather than for execution speed.Gravatar xleroy2014-02-19
| | | | | | | | Refactored compilation flags that affect the Coq part (module Compopts). Added support for C99 for loops with declarations. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2410 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Back to origins: suppress Mfloat64al32 chunk and align Mfloat64 to 4.Gravatar xleroy2014-01-12
| | | | | | | - Revised printing of intermediate RTL code. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2403 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
* Catch and report Env errors arising out of some Cutil functionsGravatar xleroy2013-12-30
| | | | | | | (incomplete_type, sizeof, etc). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2393 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Elab.ml: more warnings.Gravatar xleroy2013-12-30
| | | | | | | Cutil.ml: fix sizeof calculation of structs. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2391 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
* 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
* 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
* Hack StructReturn to better adhere to PowerPC and ARM calling conventions.Gravatar xleroy2013-12-20
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2382 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Bring sizeof and alignof in sync with cfrontend/Ctypes.Gravatar xleroy2013-12-11
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2378 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
* Make it possible to use the "__packed__" keyword as an attribute nameGravatar xleroy2013-11-05
| | | | | | | (same as for "const"). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2361 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Eliminate unreferenced inline functionsGravatar xleroy2013-10-28
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2353 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revise parsing of character constants for conformance with ISO C 99.Gravatar xleroy2013-10-25
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2352 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Typing of integer literals: follow C99 rules exactly.Gravatar xleroy2013-10-21
| | | | | | | Comments: make reference to the C99 standard. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2347 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* PackedStructs.ml: cleanups and bug-fixesGravatar xleroy2013-10-13
| | | | | | | Ceval.ml: tolerate non-zero integers with pointer types. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2343 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
* Follow-up to commit 2339:Gravatar xleroy2013-10-05
| | | | | | | don't complain about parameter redefinition for unnamed parameters. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2340 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Elab:Gravatar xleroy2013-10-04
| | | | | | | | | | | - bad error recovery on bitfield with 'long long' type - check for redefinition of function parameters Bitfields: - when assigning to a bitfield, cast the RHS to "unsigned int" (it matters if the RHS is long long). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2339 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
* Recognize attribute((packed)) after a "struct {...}" and not just between ↵Gravatar xleroy2013-06-21
| | | | | | "struct" and "{", for compatibility with GCC. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2285 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Support __attribute__(ident) where ident is not bound. Useful for GCC ↵Gravatar xleroy2013-05-13
| | | | | | compatibility in general and MacOS 10.8 standard includes in particular. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2248 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revert suppression of __builtin_{read,write}_reversed for x86 and ARM,Gravatar xleroy2013-04-29
| | | | | | | | for compatibility with earlier CompCert versions. But don't use them in PackedStructs. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2216 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Add __builtin_bswap16 and __builtin_bswap32 to all ports.Gravatar xleroy2013-04-20
| | | | | | | | | Remove __builtin_{read,write}_reversed from IA32 and ARM ports. Machregs: tighten destroyed_by_builtin Packedstructs: use bswap if read/write-reversed not available. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2208 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* UpdatedGravatar xleroy2013-03-26
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2164 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Better locations for error messages relative to type specifiers.Gravatar xleroy2013-03-25
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2159 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Remove the C primitives for unsigned long long arithmetic, replacedGravatar xleroy2013-03-18
| | | | | | | by pure OCaml code. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2153 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Suppress int64_unsigned_to_float, now unused.Gravatar xleroy2013-03-11
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2146 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* 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
* Flocq-based parsing of floating-point literals (Jacques-Henri Jourdan)Gravatar xleroy2012-11-03
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2065 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Update cparser/Makefile (fix by Jacques-Henri Jourdan)Gravatar xleroy2012-11-03
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2064 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
* Cprint: export Cprint.attributesGravatar xleroy2012-03-07
| | | | | | | | PackedStructs: honor 'aligned' attribute on packed struct fields C2C: warn for ignored 'aligned' attributes git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1837 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Problems with multiple declarations of publically-visible identifiersGravatar xleroy2012-02-29
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1831 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* 'typeof' is not a keywordGravatar xleroy2012-02-29
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1829 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Support for _Alignof(ty) operator from ISO C 2011Gravatar xleroy2012-02-26
| | | | | | | | | | and __alignof__(ty), __alignof__(expr) from GCC. - Resurrected __builtin_memcpy_aligned, useful for files generated by Scade KCG 6. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1827 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Interp: help debug stuck expressionsGravatar xleroy2012-02-10
| | | | | | | | StructReturn: was building an ill-typed Ecomma expression Cutil: export "ecast" git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1816 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
* cparser/*: refactoring of the expansion of read-modify-write operatorsGravatar xleroy2011-11-26
| | | | | | | | | cparser/PackedStructs: treat r-m-w operations over byte-swapped fields cparser/PackedStructs: allow static initialization of packed structs test/regression: more packedstruct tests git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1738 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Corrected initialization of char arrays by string literals.Gravatar xleroy2011-10-17
| | | | | | | Added -flongdouble option (to turn long double into double) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1731 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* More cleanups in packed struct emulation.Gravatar xleroy2011-10-16
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1730 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
* arm/PrintAsm: don't generate "vfd" directive, useless?Gravatar xleroy2011-08-22
| | | | | | | cparser: distinguish more carefully between lvalues and modifiable lvalues. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1722 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Wrong check: &e must be rejected if e has array type and is not a l-value.Gravatar xleroy2011-08-21
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1720 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Presimplification SimplVolatile: cleaned up and integrated.Gravatar xleroy2011-08-18
| | | | | | test/*/Makefile: normalized 'bench' target git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1717 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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