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* Upgrade to Flocq 2.5.0.Guillaume Melquiond2015-09-221-4/+4
| | | | Note: this version of Flocq is compatible with both Coq 8.4 and 8.5.
* Track the locations of local variables using EF_debug annotations.Xavier Leroy2015-08-231-3/+5
| | | | | | | | | | | | | | SimplLocals: - record locations of stack-allocated variables with annotations (of kind 5) at the beginning of the function; - mark every assignment to non-stack-allocated variables with an annotation of kind 2. Debugvar: (new pass!) - perform availability analysis for debug annotations of kind 2 - insert "start of live range" and "end of live range" annotations (kind 3 and 4) to delimit intervals of PCs where the location of a local variable is known.
* Refactoring of builtins and annotations in the back-end.Xavier Leroy2015-08-211-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | 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.
* Support for GCC-style extended asm, continued:Xavier Leroy2015-04-211-7/+7
| | | | | | | | - 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 Leroy2015-04-171-9/+9
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* Missing initialization of current_function_sig.Xavier Leroy2015-03-141-2/+2
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* Add a type system for CompCert C and type-checking constructor functions.Xavier Leroy2014-12-311-8/+9
| | | | | Use these constructor functions in C2C to rely less on the types produced by the unverified elaborator.
* Verification of the Unusedglob pass (removal of unreferenced static global ↵Xavier Leroy2014-11-241-1/+3
| | | | definitions). Assorted changes to ia32/Op.v. PowerPC and ARM need updating.
* Update Makefile, dependencies, and Changelog after upgrade to Flocq 2.4.0.Xavier Leroy2014-10-091-0/+1
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* Upgrade to flocq 2.4.0Jacques-Henri Jourdan2014-10-071-2/+2
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* Update dependenciesxleroy2014-08-191-14/+14
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2570 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge the various $(ARCH)/$(VARIANT)/xxx.v files into $(ARCH)/xxx.v.xleroy2014-07-231-7/+7
| | | | | | | | | The only platform where we have two variants is ARM, and it's easier to share the callling convention code between the two than to maintain both variants separately. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2540 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of "newspilling" branch:xleroy2014-07-231-11/+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
* Integration of Jacques-Henri Jourdan's verified parser.xleroy2014-04-291-0/+13
| | | | | | | (Merge of branch newparser.) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2469 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Constprop: use "not" for "xorimm(-1)"; optimize == 1 and != 0 comparisons ↵xleroy2014-04-091-7/+7
| | | | | | | | | | over booleans. Select*: more systematic constant propagation; don't CP shifts by amounts outside of [0..31]. Driver: timer for whole compilation. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2452 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of branch linear-typing:xleroy2014-04-061-10/+10
| | | | | | | | | | | | | | | | | | | | | | | 1) Revised division of labor between RTLtyping and Lineartyping: - RTLtyping no longer keeps track of single-precision floats, switches from subtype-based inference to unification-based inference. - Unityping: new library for unification-based inference. - Locations: don't normalize at assignment in a stack slot - Allocation, Allocproof: simplify accordingly. - Lineartyping: add inference of locations that contain a single-precision float. - Stackingproof: adapted accordingly. This addresses a defect report whereas RTLtyping was rejecting code that used a RTL pseudoreg to hold both double- and single-precision floats (see test/regression/singlefloats.c). This corresponds to commits 2435+2436 plus improvements in Lineartyping. 2) Add -dtimings option to measure compilation times. Moved call to C parser from Elab to Parse, to make it easier to measure parsing time independently of elaboration time. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2449 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revert commits r2435 and r2436 (coarser RTLtyping / finer Lineartyping):xleroy2014-03-281-10/+10
| | | | | | | the new Lineartyping can't keep track of single floats that were spilled. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2438 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Move wt_instr_inv where it belongs.xleroy2014-03-271-10/+10
| | | | | | | Update Makefile and dependencies. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2436 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Force dependency of SelectOp on Compopts.xleroy2014-03-031-1/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2428 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Remove useless checks on type_of_global in dynamic semanticsxleroy2014-02-201-10/+10
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2411 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Add option -Os to optimize for code size rather than for execution speed.xleroy2014-02-191-12/+13
| | | | | | | | 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
* Introduce and use the platform-specific Archi module giving:xleroy2014-01-031-7/+7
| | | | | | | | | | - endianness - alignment constraints for 8-byte types (which is 4 for x86 ABI and 8 for other ABIs) - NaN handling options (superceding the Nan module, removed). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2402 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of branch value-analysis.xleroy2013-12-201-9/+18
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2381 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the "alignas" branch.xleroy2013-10-051-1/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2342 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of Flocq version 2.2.0.xleroy2013-08-021-18/+20
| | | | | | | More precise modeling of NaNs. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2303 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Optimize integer divisions by positive constants, turning them intoxleroy2013-07-291-2/+4
| | | | | | | multiply-high and shifts. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2300 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the float32 branch: xleroy2013-05-191-1/+2
| | | | | | | | - 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
* Use "-as" to put CompCert modules in a compcert.xxx namespace.xleroy2013-05-011-7/+7
| | | | | | | | Simplified the scripts "coq" and "pg". Updated deps. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2228 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Big merge of the newregalloc-int64 branch. Lots of changes in two directions:xleroy2013-04-201-37/+23
| | | | | | | | | 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
* Assorted changes to reduce stack and heap requirements when compiling very ↵xleroy2013-03-161-5/+6
| | | | | | big functions. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2151 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* No longer a dependency on Machtypingxleroy2013-03-011-1/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2132 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised Stacking and Asmgen passes and Mach semantics: xleroy2013-03-011-10/+7
| | | | | | | | | | - no more prediction of return addresses (Asmgenretaddr is gone) - instead, punch a hole for the retaddr in Mach stack frame and fill this hole with the return address in the Asmgen proof. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2129 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Ported to Coq 8.4pl1. Merge of branches/coq-8.4.xleroy2013-01-291-150/+150
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2101 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* More correct exportclight/ dependenciesxleroy2013-01-081-6/+7
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2094 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Remove some useless "Require".xleroy2012-12-301-64/+64
| | | | | | | Update ARM port. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2085 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the clightgen branch:xleroy2012-12-291-0/+2
| | | | | | | | | | | | | | | | | | - Alternate semantics for Clight where function parameters are temporaries, not variables - New pass SimplLocals that turns non-addressed local variables into temporaries - Simplified Csharpminor, Cshmgen and Cminorgen accordingly - SimplExpr starts its temporaries above variable names, therefoe Cminorgen no longer needs to encode variable names and temps names. - Simplified Cminor parser & printer, as well as Errors, accordingly. - New tool clightgen to produce Clight AST in Coq-parsable .v files. - Removed side condition "return type is void" on rules skip_seq in the semantics of CompCert C, Clight, C#minor, Cminor. - Adapted RTLgenproof accordingly (now uses a memory extension). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2083 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Clight: split off the big step semantics in ClightBigstep.xleroy2012-10-141-0/+1
| | | | | | | Cstrategy: updated the big-step semantics with Eseqand and Eseqor. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2062 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Make Clight independent of CompCert C.xleroy2012-10-081-12/+14
| | | | | | | 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
* Update CombineOp for arm and ia32.xleroy2012-07-031-3/+3
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1950 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Changelog: updatedxleroy2012-06-281-4/+4
| | | | | | | | | | 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 floatsxleroy2012-06-281-2/+29
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1939 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* CSE: add recognition of some combined operators, conditions, and addressing ↵xleroy2012-05-261-4/+6
| | | | | | | | | | modes (cf. CombineOp.v) Memory model: cleaning up Memdata Inlining and new Constprop: updated for ARM. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1902 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the newmem branch:xleroy2012-05-211-3/+10
| | | | | | | | | | - 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
* - Support for _Alignof(ty) operator from ISO C 2011xleroy2012-02-261-2/+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
* More aggressive common subexpression elimination (CSE) of memory loads.xleroy2012-02-231-5/+5
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1823 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Cosmetic cleanups.xleroy2012-01-151-4/+4
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1793 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the nonstrict-ops branch:xleroy2012-01-141-7/+5
| | | | | | | | | | | - Most RTL operators now evaluate to Some Vundef instead of None when undefined behavior occurs. - More aggressive instruction selection. - "Bertotization" of pattern-matchings now implemented by a proper preprocessor. - Cast optimization moved to cfrontend/Cminorgen; removed backend/CastOptim. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1790 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* New backend pass "RRE": optimize (somewhat) redundant reloads introduced by ↵xleroy2011-08-161-1/+4
| | | | | | the Reload pass. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1713 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Locations.v: add Loc.diff_dec.xleroy2011-08-141-3/+3
| | | | | | | | ia32: lift restriction that 1st arg of ops cannot be ECX (could be useful for a future, better reloading strategy) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1711 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Updated Makefile and dependencies. Typo in powerpc/PrintAsm.ml.xleroy2011-07-281-3/+4
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1689 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
generated by cgit (git 2.34.1) at 2024-06-28 21:01:34 +0000