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* Merge remote-tracking branch 'origin/master' into towards_3.10David Monniaux2021-10-291-2/+2
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| * Qualify `Instance` and `Program Instance` as `Global`Xavier Leroy2021-10-031-2/+2
| | | | | | | | This avoids a new warning of Coq 8.14.
* | Merge branch 'master' of https://github.com/AbsInt/CompCert into towards_3.10David Monniaux2021-09-242-4/+4
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| * Fix wrong expansion of __builtin_memcpy_alignedXavier Leroy2021-09-231-2/+2
| | | | | | | | | | | | | | | | | | In the "small" case, there was an error in the choice of temporary registers to use when one argument is a stack location and the other is a register. The chosen temporary could conflict with the argument that resides in a register. Fixes: #412
| * Int.sign_ext_shr_shl: weaker hypothesisXavier Leroy2021-08-221-2/+2
| | | | | | | | | | | | Works also for sign_ext 32. ARM, RISC-V: adapt Asmgenproof1 accordingly
| * Use the LGPL instead of the GPL for dual-licensed filesXavier Leroy2021-05-084-16/+20
| | | | | | | | | | | | The GPL makes sense for whole applications, but the dual-licensed Coq and OCaml files are more like libraries to be combined with other code, so the LGPL is more appropriate.
| * Support __builtin_unreachableXavier Leroy2021-05-021-0/+4
| | | | | | | | Not yet used for optimizations.
* | cleanupLéo Gourdin2021-09-011-1/+0
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* | op simplify BTL introLéo Gourdin2021-07-201-0/+1
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* | [BROKEN] Merge with v3.9 : something broken for __builtin_expect in ↵Cyril SIX2021-06-015-16/+24
| | | | | | | | cfrontend/C2C.ml
* | Merge branch 'master' into merge_master_8.13.1Sylvain Boulmé2021-03-2311-89/+90
|\| | | | | | | | | | | | | | | | | 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
| * Introduce and use PrintAsmaux.variable_sectionXavier Leroy2021-02-231-2/+2
| | | | | | | | | | | | | | This is a generalization of the previous PrintAsmaux.common_section function that - handles initialized variables in addition to uninitialized variables; - can be used for Section_const, not just for Section_data.
| * Qualify `Hint` as `Global Hint` where appropriateXavier Leroy2021-01-212-4/+4
| | | | | | | | | | | | | | This avoids a new warning of Coq 8.13. Eventually these `Global Hint` should become `#[export] Hint`, with a cleaner but different meaning than `Global Hint`.
| * Support re-normalization of function parameters at function entryXavier Leroy2021-01-161-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is complementary to 28f235806 Some ABIs leave more flexibility concerning function parameters than CompCert expects. For instance, the AArch64/ELF ABI allow the caller of a function to leave unspecified the "padding bits" of function parameters. As an example, a parameter of type "unsigned char" may not have zeros in bits 8 to 63, but may have any bits there. When the caller is compiled by CompCert, it normalizes argument values to the parameter types before the call, so padding bits are always correct w.r.t. the type of the argument. This is no longer guaranteed in interoperability scenarios, when the caller is not compiled by CompCert. This commit adds a general mechanism to insert "re-normalization" conversions on the parameters of a function, at function entry. This is controlled by the platform-dependent function Convention1.return_value_needs_normalization. The semantic preservation proof is still conducted against the CompCert model, where the argument values of functions are already normalized. What the proof shows is that the extra conversions have no effect in this case. In future work we could relax the CompCert model, allowing functions to pass arguments that are not normalized.
| * Replace `omega` tactic with `lia`Xavier Leroy2020-12-299-80/+80
| | | | | | | | | | | | | | | | | | | | | | 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`.
| * Changed cc_varargs to an option typeBernhard Schommer2020-12-251-2/+2
| | | | | | | | | | | | Instead of being a simple boolean we now use an option type to record the number of fixed (non-vararg) arguments. Hence, `None` means not vararg, and `Some n` means `n` fixed arguments followed with varargs.
* | fix ci ?Léo Gourdin2021-03-022-0/+2
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* | Merge remote-tracking branch 'origin/kvx-work' into kvx-better2-cse3David Monniaux2020-12-087-46/+9
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| * | Merge github.com:AbsInt/CompCert into kvx-workv3.8_kvx_instructions_fixedDavid Monniaux2020-12-082-4/+6
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| | * ARM modeling of registers destroyed by pseudo-instructionsXavier Leroy2020-12-062-4/+6
| | | | | | | | | | | | | | | Pflid destroys IR14 Inlined built-in functions destroy IR14
| * | Merge branch 'kvx-work' into kvx-work-merge3.8Cyril SIX2020-12-044-3/+91
| |\ \ | | | | | | | | | | | | | | | | | | | | Conflicts: Makefile configure
| * \ \ Merge branch 'master' (Absint 3.8) into kvx-work-merge3.8David Monniaux2020-11-186-42/+3
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| | * | Support the use of already-installed MenhirLib and Flocq librariesXavier Leroy2020-09-211-2/+1
| | | | | | | | | | | | | | | | configure flags -use-external-Flocq and -use external-MenhirLib.
| | * | Add __builtin_sqrt as synonymous for __builtin_fsqrtXavier Leroy2020-07-271-1/+1
| | | | | | | | | | | | | | | | __builtin_sqrt (no "f") is the name used by GCC and Clang.
| | * | Move declarations of __builtin_clz* and __builtin_ctz* to C2C.mlXavier Leroy2020-07-271-13/+0
| | | | | | | | | | | | | | | | These functions are now available on all targets.
| | * | No need to process __builtin_fabs in $ARCH/Asmexpand.mlXavier Leroy2020-07-271-2/+0
| | | | | | | | | | | | | | | | __builtin_fabs has already been expanded in backend/Selection.v .
| | * | Added missing hint database name.Bernhard Schommer2020-06-301-1/+1
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| | * | Move shared code in new file.Bernhard Schommer2020-06-282-18/+0
| | | | | | | | | | | | | | | | | | | | The name_of_register and register_of_name function are shared between all architectures and can be moved in a common file.
| | * | Remove the `can_reserve_register` function.Bernhard Schommer2020-06-282-5/+0
| | | | | | | | | | | | | | | | | | | | The function is in fact just a call to the function`is_callee_save_register` from `Conventions1.v`.
| | * | Use Hashtbl.find_opt.Bernhard Schommer2020-06-281-1/+1
| | | | | | | | | | | | | | | | | | | | Replace the pattern `try Some (Hashtbl.find ...) with Not_found -> None` by a call to the function Hashtbl.find_opt.
* | | | cond_depends_onDavid Monniaux2020-12-021-7/+7
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* | | | Merge remote-tracking branch 'origin/kvx-work' into kvx-better2-cse3David Monniaux2020-12-021-0/+1
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| * | | Merge remote-tracking branch 'origin/kvx-work' into kvx-test-prepassCyril SIX2020-12-011-1/+0
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arm/Op.v common/Values.v kvx/Op.v
| * \ \ \ Merge remote-tracking branch 'origin/kvx-work' into kvx-test-prepassDavid Monniaux2020-11-242-3/+76
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| * | | | | op_valid_pointer_eq armDavid Monniaux2020-10-191-0/+15
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| * | | | | so that all architectures compileDavid Monniaux2020-10-021-0/+1
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* | | | | cond_valid_pointer_eqDavid Monniaux2020-11-251-0/+10
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* | | | pointer_eq copiedDavid Monniaux2020-11-251-0/+14
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* | | bug #223 fix for ARMDavid Monniaux2020-11-232-3/+76
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* | Adding copyrightsCyril SIX2020-05-043-0/+38
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* | Merge remote-tracking branch 'origin/mppa-licm' into mppa-featuresDavid Monniaux2020-04-202-3/+10
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| * | test whether the instructions are allowedDavid Monniaux2020-04-191-0/+2
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| * | adapting new stuff for ARM and AArch64David Monniaux2020-04-011-3/+8
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* | | Merge remote-tracking branch 'origin/mppa-profiling' into mppa-featuresDavid Monniaux2020-04-125-2/+56
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| * | | seems like the ARM profiling perhaps worksDavid Monniaux2020-04-114-2/+55
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| * | | missing cases preventing compilationDavid Monniaux2020-04-081-0/+1
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* | | Merge remote-tracking branch 'origin/mppa-work' into mppa-threadDavid Monniaux2020-04-084-209/+171
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| * | DuplicateOpcodeHeuristic for ARMDavid Monniaux2020-03-171-3/+22
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| * | ported to armDavid Monniaux2020-03-031-9/+6
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| * | fixed CSE2 for mppa_k1cDavid Monniaux2020-03-032-0/+152
| |\ \ | | | | | | | | | | | | Merge branch 'dm-cse2-naive' of https://github.com/monniaux/CompCert into mppa-cse2
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