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| * Experiment: track the scopes of local variables via __builtin_debug.Xavier Leroy2015-09-201-38/+36
| | | | | | | | | | | | | | | | | | | | | | C2C: the code that insert debug builtins with the line numbers is now in Unblock. Handle calls to __builtin_debug. Unblock: generate __builtin_debug(1) for line numbers, carrying the list of active scopes as extra arguments. Generate __builtin_debug(6) for local variable declarations, carrying the corresponding scope number as extra argument. Constprop: avoid duplicating debug arguments that are constants already. PrintAsmaux: show this extra debug info as comments.
* | Started implementing the scope for the Debug Informations.Bernhard Schommer2015-09-181-0/+1
| | | | | | | | | | | | Scopes will be handled by a stack of all open scopes. This stack then can also be used to generate the debug directives to track the scopes through the rest of the passes.
* | First version with computation of dwarf info from debug info.Bernhard Schommer2015-09-171-1/+1
| | | | | | | | | | Introduced a new dwarf generation from the information collected in the DebugInformation and removed the old CtODwarf translation.
* | Move more functionality in the new interface.Bernhard Schommer2015-09-161-4/+7
| | | | | | | | | | | | Added functions to add more information to the debuging interface, like the struct layout with offsets, bitifiled layout and removed the no longer needed mapping from stamp to atom.
* | XBernhard Schommer2015-09-061-1/+1
|\| | | | | | | Merge branch 'master' into debug_locations
| * Renaming {BA,BR}_longofwords -> {BA,BR}_splitlong.Xavier Leroy2015-08-221-1/+1
| | | | | | | | | | | | | | | | Use EF_debug instead of EF_annot for line number annotations. Introduce PrintAsmaux.print_debug_info (very incomplete). powerpc/Asmexpand: revise expand_memcpy_small.
* | Added symbol functions for printing of the location for global variables.Bernhard Schommer2015-08-211-2/+8
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* Tighten and prove correct the underflow/overflow bounds for parsing of FP ↵Xavier Leroy2015-07-061-41/+29
| | | | | | | | | literals. This is a follow-up to commit 350354c. - Move Float.build_from_parsed to Fappli_IEEE_extra.Bparse - Add early checks for overflow and underflow and prove them correct. - Improve speed of Bparse by using a fast exponentiation (square-and-multiply).
* Added a fast test for too large exponents too avoid never ending computations.Bernhard Schommer2015-07-031-29/+42
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* Check also the discarded part of the switch statements for cases outside of ↵Bernhard Schommer2015-06-261-1/+26
| | | | an switch to bail out on earlier on unstructured switch.
* In AST.calling_conventions, record whether the original C function was ↵Xavier Leroy2015-05-221-9/+11
| | | | | | "old-style" unprototyped. Use this info in printing function types for Csyntax and Clight.
* Ctyping: better typing of conditional expressions.Xavier Leroy2015-05-211-4/+2
| | | | | | | | | | | | Ctyping: define a typechecker for whole programs. Csyntax: introduce the type "pre-program" (non-dependent). C2C: use Ctyping.econdition instead of Ctyping.econdition'. Note: Ctyping.typecheck_program could be used as the first step in the verified compilation pipeline. Then, retyping would no longer be performed in C2C. We keep it this way (for the time being) because retyping errors are reported more precisely in C2C than in Ctyping.
* Extended inline asm: revised treatment of clobbered registers.Xavier Leroy2015-05-091-1/+1
| | | | | | | | | | - Treat clobbered registers as being destroyed by EF_inline_asm builtins (which is the truth, semantically). - To enable the above, represent clobbers as Coq strings rather than idents and move register_by_name from Machregsaux.ml to Machregs.v. - Side benefit: more efficient implementation of Machregsaux.name_of_register. -# Please enter the commit message for your changes. Lines starting
* Warn if a nonzero FP literal converts to infinity (overflow) or to 0 ↵Xavier Leroy2015-04-251-3/+17
| | | | | | (underflow). Also: spurious '\n' in C2C.warning.
* Use Cerrors for error reporting instead of rolling our own reporting in C2C.Xavier Leroy2015-04-211-11/+5
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* Support for GCC-style extended asm, continued:Xavier Leroy2015-04-211-80/+15
| | | | | | | | - support "r", "m" and "i" constraints - support "%Q" and "%R" modifiers for register pairs - support register clobbers - split off analysis and transformation of asm statements in cparser/ExtendedAsm.ml
* Experiment: support a subset of GCC's extended asm statements.Xavier Leroy2015-04-171-2/+93
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* Merge pull request #34 from AbsInt/extended-annotationsXavier Leroy2015-04-011-2/+1
|\ | | | | Extended annotations
| * Updated the Caml part. Added some more tests in annot1.c.Xavier Leroy2015-03-271-2/+1
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* | Support va_arg for vararg arguments of composite (struct/union) types.Xavier Leroy2015-03-201-13/+37
|/ | | | ARM is done, IA32 and PowerPC remain to be updated.
* Issue #28: if the arguments of __builtin_memcpy_aligned are arrays, their ↵Xavier Leroy2015-03-101-1/+3
| | | | types must decay to pointer types in the "types" part of Ebuiltin.
* Merge branch 'named-structs'Xavier Leroy2015-01-231-212/+183
|\ | | | | | | | | | | | | | | | | | | | | | | | | - Switch CompCert C / Clight AST of composite types (structs and unions) from a structural representation to a nominal representation, closer to concrete syntax. - This avoids algorithmic inefficiencies due to the structural representation. - Closes PR#4. - Smallstep: make small-step semantics more polymorphic in the type of the global environment. - Globalenvs: introduce Senv.t (symbol environments) as a restricted view on Genv.t (full global environments). - Events, Smallstep: use Senv instead of Genv to talk about global names.
| * Add a type system for CompCert C and type-checking constructor functions.Xavier Leroy2014-12-311-64/+80
| | | | | | | | | | Use these constructor functions in C2C to rely less on the types produced by the unverified elaborator.
| * Represent struct and union types by name instead of by structure.Xavier Leroy2014-12-221-148/+103
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* | Delay reads from !Machine.config before it is properly initialized.Xavier Leroy2015-01-221-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Several definitions in Cutil and elsewhere were accessing the default value of !Machine.config, before it is properly initialized in Driver. Delay evaluation of these definitions, and initialize Machine.config to nonsensical values so that lack of initialization is caught early (e.g. in Cutil.find_matching_*_kind). Also, following up on commit [3b8a094], don't use "wchar_t" typedef to type wide string literals, even if this typedef is in scope. The risk here is to hide an inconsistency between "wchar_t"'s definition in standard headers and CompCert's built-in definition.
* | Protect against redefinition of the __i64_xxx helper library functions.Xavier Leroy2015-01-201-1/+54
| | | | | | | | | | | | | | | | | | | | This is achieved by declaring these functions in C2C.ml, then re-checking their declarations in the global environment during the Selection pass. In passing, the "hf" parameter for SelectLong functions was removed and replaced by fixed identifiers corresponding to the actual names of the helper functions.
* | PR#19: there is no reason to reject an empty "switch" statement.Xavier Leroy2015-01-061-2/+0
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* | PR#15: vararg functions are not eligible for inlining.Xavier Leroy2015-01-021-1/+1
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* | Translation of wide string literals.Xavier Leroy2015-01-011-6/+57
|/ | | | | | | Closes PR#13. Also: give string literals type unsigned char [] or signed char [] depending on the machine configuration. (Instead of unsigned char [] before.)
* Record public global definitions via field "prog_public" in AST.program.Xavier Leroy2014-11-241-57/+66
| | | | For the moment, this field is ignored.
* More careful detection of inlined builtins. Produces better error messages ↵xleroy2014-08-251-0/+1
| | | | | | 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).xleroy2014-08-211-0/+2
| | | | 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.xleroy2014-08-171-4/+7
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2567 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Support "switch" statements over 64-bit integersxleroy2014-08-171-3/+1
| | | | | | | | | | | | | (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_membarxleroy2014-07-281-0/+5
| | | | | | | 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:xleroy2014-07-231-6/+12
| | | | | | | | | | | | | | | - 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
* - Re-added support for "__func__" identifier as per ISO C99.xleroy2014-05-151-3/+7
| | | | | | | | - 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:xleroy2014-04-231-22/+17
| | | | | | | | | | | | | - 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
* C: Support array initializers that are too short + default init for remainder.xleroy2014-03-281-4/+4
| | | | | | | | 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
* Incomplete types are OK for 'extern' global variables.xleroy2014-01-021-1/+1
| | | | 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, ↵xleroy2014-01-011-4/+9
| | | | | | 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 ↵xleroy2014-01-011-5/+82
| | | | | | tested on PowerPC and ARM. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2394 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Improved detection of variables with incomplete types.xleroy2013-12-301-1/+3
| | | | | | | 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 prototypexleroy2013-12-281-6/+22
| | | | | | | | (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.xleroy2013-12-281-2/+4
| | | | | | | 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.xleroy2013-12-281-8/+4
| | | | | | | 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:xleroy2013-12-281-88/+44
| | | | | | | | | | | | | | - 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.xleroy2013-12-211-15/+13
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2383 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* powerpc/: new unary operation "addsymbol"xleroy2013-11-171-6/+12
| | | | | | | | 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.xleroy2013-11-101-4/+0
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2365 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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