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* 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
* Error messages were not displayed correctly if the main() function is ↵Gravatar xleroy2014-03-21
| | | | | | missing or has the wrong type. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2433 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
* Interp.ml: in the emulation of printf(), check formats against types of ↵Gravatar xleroy2014-01-12
| | | | | | | | | arguments. Test sizeof1: adapt to the fact that alignof(double) is either 4 or 8 depending on platform. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2406 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
* 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
* 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
* 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
* More precise and faster recovery of function name from function or fundef value.Gravatar xleroy2013-06-08
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2270 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
* Fixes in PowerPC portGravatar xleroy2013-04-21
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2209 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Interp.ml: support printf of long longGravatar xleroy2013-04-20
| | | | | | | test/regression: add test "int32"; update test "int64" git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2201 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
* Improving the performance of exhaustive exploration (mode -all):Gravatar xleroy2013-03-09
| | | | | | | | - Re-share states even at different times - Faster comparison between states, giving priority to the mem nextblock git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2138 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Typo in compare_mem causing merging of different states.Gravatar xleroy2013-02-02
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2108 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
* Better treatment of volatile accesses in the reference interpreter.Gravatar xleroy2013-01-08
| | | | | | | Suppressed option -randvol. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2092 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Update Cminor parser and printer so that the parser can parse the whole ↵Gravatar xleroy2013-01-07
| | | | | | Cminor language and can reparse the output of the printer. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2090 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Globalenvs: allocate one-byte block with permissions Nonempty for eachGravatar xleroy2012-11-12
| | | | | | | | | | | function definition, so that comparisons between function pointers are correctly defined. AST, Globalenvs, and many other files: represent programs as a list of (function or variable) definitions instead of two lists, one for functions and the other for variables. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2067 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Make Clight independent of CompCert C.Gravatar xleroy2012-10-08
| | | | | | | Common parts are factored out in cfrontend/Ctypes.v and cfrontend/Cop.v git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2060 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Revised non-overflow constraints on memory injections so that Gravatar xleroy2012-07-23
| | | | | | | | | | injections compose (Values, Memdata, Memory) - Memory chunks: Mfloat64 now has alignment 8; introduced Mfloat64al32 that works like old Mfloat64 (i.e. has alignment 4); simplified handling of memcpy builtin accordingly. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1983 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Changelog: updatedGravatar xleroy2012-06-28
| | | | | | | | | | driver/Interp.ml: clean up dead code lib/Integers.v: add shifted_or_is_add lib/Floats.v: add from_words_eq .depend: updated git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1940 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Use Flocq for floatsGravatar xleroy2012-06-28
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1939 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the newmem branch:Gravatar xleroy2012-05-21
| | | | | | | | | | - Revised memory model with Max and Cur permissions, but without bounds - Constant propagation of 'const' globals - Function inlining at RTL level - (Unprovable) elimination of unreferenced static definitions git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1899 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Better printing of pointer values and of locations.Gravatar xleroy2012-02-29
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1830 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
* Interp: accommodate "int main(int, char **)".Gravatar xleroy2011-10-19
| | | | | | | Driver: dead code removed. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1733 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Extraction: map Coq pairs to Caml pairs and Coq chars (type ascii) to Caml charsGravatar xleroy2011-10-18
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1732 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Treatment of volatiles: offer the choice between random reads and treating ↵Gravatar xleroy2011-08-09
| | | | | | volatile accesses like regular loads and stores. (The latter is needed e.g. for Csmith testing.) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1703 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Interp.ml: initialize PRNGGravatar xleroy2011-07-29
| | | | | | | Cexec.v: comments git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1691 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Added animation of the CompCert C semantics (ccomp -interp)Gravatar xleroy2011-07-28
test/regression: int main() so that interpretation works Revised once more implementation of __builtin_memcpy (to check for PPC & ARM) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1688 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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