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* Merge branch 'master' into merge_master_8.13.1Sylvain Boulmé2021-03-231-55/+55
|\ | | | | | | | | | | | | | | | | PARTIAL MERGE (PARTLY BROKEN). See unsolved conflicts in: aarch64/TO_MERGE and riscV/TO_MERGE WARNING: interface of va_args and assembly sections have changed
| * Replace `omega` tactic with `lia`Xavier Leroy2020-12-291-55/+55
| | | | | | | | | | | | | | | | | | | | | | Since Coq 8.12, `omega` is flagged as deprecated and scheduled for removal. Also replace CompCert's homemade tactics `omegaContradiction`, `xomega`, and `xomegaContradiction` with `lia` and `extlia`. Turn back on the deprecation warning for uses of `omega`. Make the proof of `Ctypes.sizeof_pos` more robust to variations in `lia`.
* | Adding info field for branching in RTL, LTL, XTL and all associated passesCyril SIX2020-03-111-3/+3
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* | avancement (il faut utiliser Vundef visiblement)David Monniaux2019-09-021-3/+3
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* Inlining of static functions which are only called once. (#37)Bernhard Schommer2017-12-071-6/+6
| | | | | | | | | New inlining heuristic for static functions. Static functions that are only called once can always be inlined, since they can be removed safely after inlining and no call prologue, epilogue, as well as register saving and needs to be generated.
* Remove coq warnings (#28)Bernhard Schommer2017-09-221-11/+11
| | | | Replace deprecated functions and theorems from the Coq standard library (version 8.6) by their non-deprecated counterparts.
* Inliningspec made compatible with a coming fix of zifyletouzey2017-05-271-1/+1
| | | | See Coq pull request #673 (and original bug #5336). With the fixed version of zify, this proof could actually be shortened to `intros. unfold shiftpos. now zify.`, but the proposed patch has the advantage of being compatible with both the released versions of Coq, and the coming ones.
* Hybrid 64bit/32bit PowerPC portBernhard Schommer2017-05-031-5/+5
| | | | | | | | | | | | | This commit adds code generation for 64bit PowerPC architectures which execute 32bit applications. The main difference to the normal 32bit PowerPC port is that it uses the available 64bit instructions instead of using the runtime library functions. However pointers are still 32bit and the 32bit calling convention is used. In order to use this port the target architecture must be either in Server execution mode or if in Embedded execution mode the high order 32 bits of GPRs must be implemented in 32-bit mode. Furthermore the operating system must preserve the high order 32 bits of GPRs.
* Support for 64-bit architectures: generic supportXavier Leroy2016-10-011-2/+2
| | | | | | | | | | | - Introduce Archi.ptr64 parameter. - Define module Ptrofs of integers as wide as a pointer (64 if Archi.ptr64, 32 otherwise). - Use Ptrofs.int as the offset type for Vptr values and anywhere pointer offsets are manipulated. - Modify Val operations that handle pointers (e.g. Val.add, Val.sub, Val.cmpu) so that in 64-bit pointer mode it is the "long" operation (e.g. Val.addl, Val.subl, Val.cmplu) that handles pointers. - Update the memory model accordingly. - Modify C operations that handle pointers (e.g. addition, subtraction, comparisons) accordingly. - Make it possible to turn off the splitting of 64-bit integers into pairs of 32-bit integers. - Update the compiler front-end and back-end accordingly.
* Port to Coq 8.5pl2Xavier Leroy2016-07-081-2/+2
| | | | | Manual merging of branch jhjourdan:coq8.5. No other change un functionality.
* Update the back-end proofs to the new linking framework.Xavier Leroy2016-03-061-56/+66
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* Updated PR by removing whitespaces. Bug 17450.Bernhard Schommer2015-10-201-86/+86
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* Refactoring of builtins and annotations in the back-end.Xavier Leroy2015-08-211-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | Before, the back-end languages had distinct instructions - Iannot for annotations, taking structured expressions (annot_arg) as arguments, and producing no results' - Ibuiltin for other builtins, using simple pseudoregs/locations/registers as arguments and results. This branch enriches Ibuiltin instructions so that they take structured expressions (builtin_arg and builtin_res) as arguments and results. This way, - Annotations fit the general pattern of builtin functions, so Iannot instructions are removed. - EF_vload_global and EF_vstore_global become useless, as the same optimization can be achieved by EF_vload/vstore taking a structured argument of the "address of global" kind. - Better code can be generated for builtin_memcpy between stack locations, or volatile accesses to stack locations. Finally, this commit also introduces a new kind of external function, EF_debug, which is like EF_annot but produces no observable events. It will be used later to transport debug info through the back-end, without preventing optimizations.
* Extend annotations so that they can keep track of global variables and local ↵Xavier Leroy2015-03-271-0/+3
| | | | | | | | | | variables whose address is taken. - CminorSel, RTL: add "annot" instructions. - CminorSel to Asm: use type "annot_arg" for arguments of "annot" instructions. - AST, Events: simplify EF_annot because constants are now part of the arguments. Implementation is not complete yet.
* Inlining: preserve all RTL regs mentioned in the function, not justxleroy2014-03-291-65/+10
| | | | | | | | those defined in the function. Semantically, both are correct, but the latter may cause RTLtyping to fail if some regs are uninitialized and a collision occurs between regs of different types. RTL: move the function resource computations there, as it could be useful for other passes some day. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2440 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised renumbering of nodes and registers so that main function is not ↵xleroy2013-10-181-32/+84
| | | | | | shifted by 1 git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2346 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the "princeton" branch:xleroy2013-06-161-3/+3
| | | | | | | | | | | | | | - 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
* Big merge of the newregalloc-int64 branch. Lots of changes in two directions:xleroy2013-04-201-1/+32
| | | | | | | | | 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
* Pointers one pastxleroy2013-02-151-2/+2
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2118 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Ported to Coq 8.4pl1. Merge of branches/coq-8.4.xleroy2013-01-291-3/+3
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2101 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Remove some useless "Require".xleroy2012-12-301-1/+0
| | | | | | | Update ARM port. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2085 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Globalenvs: allocate one-byte block with permissions Nonempty for eachxleroy2012-11-121-35/+16
| | | | | | | | | | | 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
* Merge of the newmem branch:xleroy2012-05-211-0/+712
- 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
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