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* [BROKEN] Merge with v3.9 : something broken for __builtin_expect in ↵Cyril SIX2021-06-011-4/+5
| | | | cfrontend/C2C.ml
* begin implementing thread_local storageDavid Monniaux2020-02-241-0/+3
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* Record value of constant expression in C.Scase constructorXavier Leroy2018-04-271-1/+1
| | | | | | | | | | | | The Elab pass checks that the argument of 'case' is a compile-time constant expression. This commit records the value of this expression in the C.Scase AST generated by Elab, so that it can be used for further diagnostics, i.e. checking (in Elab) for duplicate cases. Note that C2C ignores the recorded value and recomputes the value of the expression using Ceval.integer_expr. This is intentional: Ceval.integer_expr is more trustworthy, as it is formally verified against the CompCert C semantics.
* Improved handling and diagnostics for the `auto` storage class (#99)Xavier Leroy2018-04-251-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Previously, CompCert would just ignore the `auto` keyword, thus accepting incorrect top-level definitions such as ``` auto int x; auto void f(auto int x) { } ``` This commit introduces `auto` as a proper storage class (Storage_auto constructor in the C AST). It adds diagnostics for misuses of `auto`, often patterned after the existing diagnostics for misuses of `register`. Some error messages were corrected ("storage-class" -> "storage class") or made closer to those of clang. Finally, in the generated C AST and in C typing environments, block-scoped variables without an explicit storage class are recorded as Storage_auto instead of Storage_default. This is semantically correct (block-scoped variables default to `auto` behavior) and will help us distinguishing block-scoped variables from file-scoped variables in later developments.
* Handle dcompcertc and dparsedc like all dump opts.Bernhard Schommer2018-01-041-0/+10
| | | | | This time with the correct place for setting the destination files. Bug 20521
* Use C99 syntax to print attributes over array typesXavier Leroy2017-02-011-4/+5
| | | | Before, we were doing C90, there was no official syntax for such attributes, and we used ours. With C99 we can use "ty [ attributes N ]" to print "array with attributes of N elements of type ty".
* Revised elaboration of attributesXavier Leroy2017-01-311-4/+2
| | | | | | | | | | | | | | | | | | | | | The treatment of attributes in the current CompCert is often surprising. For example, attribute(xxx) char * x; is parsed as "x is a pointer to a (char modified by attribute "xxx")", while for most attributes (e.g. section attributes) the expected meaning is "x, modified by attribute "xxx", has type pointer to char". CompCert's current treatment comes from the fact that attributes are processed very much like the standard type modifiers `const` and `volatile`, i.e. const char * x; is really "x is a pointer to a const char", not "x is a const pointer to char". This experiment introduces a distinction between type-related attributes (which include the standard modifiers `const` and `volatile`) and other attributes. The other, non-type-related attributes are "floated up" during elaboration so that they apply to the variable or function being declared or defined. In the examples above, attribute(xxx) char * x; // "attribute(xxx)" applies to "x" const char * x; // "const" applies to "char" This may be a step in the right direction but is not the final story. In particular, the `packed` attribute is special-cased when applied to `struct`, like it was before, and future attributes concerning calling conventions would need to be floated up to function types but not higher than that.
* Added raw printing of types without formatting.Bernhard Schommer2016-08-161-3/+8
| | | | | | This avoids introducing line breaks during printing of function types. Bug 18004
* Updated PR by removing whitespaces. Bug 17450.Bernhard Schommer2015-10-201-4/+4
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* Record the scope structure during unblocking.Bernhard Schommer2015-09-221-1/+5
| | | | | | Instead of creating separate annotations for the local variables we call the Debug.add_lvar_scope and we construct a mapping from function id + scope id to scope information.
* Experiment: support a subset of GCC's extended asm statements.Xavier Leroy2015-04-171-2/+36
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* Support C99 compound literals (by expansion in Unblock pass).xleroy2014-08-211-2/+4
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2615 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* C: Support array initializers that are too short + default init for remainder.xleroy2014-03-281-1/+1
| | | | | | | | 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
* Simpler, more robust emulation of calls to variadic functions:xleroy2013-12-281-1/+2
| | | | | | | | | | | | | | - 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
* Merge of the "alignas" branch.xleroy2013-10-051-0/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2342 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Support for inline assembly (asm statements).xleroy2012-12-181-4/+8
| | | | | | | 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)xleroy2012-11-031-10/+10
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2065 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Support for _Alignof(ty) operator from ISO C 2011xleroy2012-02-261-0/+2
| | | | | | | | | | 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
* cparser: support for attributes over struct and union.xleroy2011-05-121-4/+6
| | | | | | | | cparser: added experimental emulation of packed structs (PackedStruct.ml) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1650 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Preliminary support for gcc-style __attribute__ over typesxleroy2010-07-081-51/+62
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1377 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Support for 'inline' modifierxleroy2010-03-031-1/+3
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1272 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Switching to the new C parser/elaborator/simplifierxleroy2010-03-031-0/+490
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1269 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
generated by cgit (git 2.34.1) at 2024-05-19 22:10:23 +0000