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* Integration of Jacques-Henri Jourdan's verified parser.Gravatar xleroy2014-04-29
| | | | | | | (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 ↵Gravatar xleroy2014-04-09
| | | | | | | | | | 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
* Reducing compilation times: (by 35% on one example)Gravatar xleroy2014-04-06
| | | | | | | | - Use a hashtable instead of an AVL set for adjSet - Inlining and algebraic simplification of spillCost into selectSpill. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2450 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of branch linear-typing:Gravatar xleroy2014-04-06
| | | | | | | | | | | | | | | | | | | | | | | 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
* Inlining: preserve all RTL regs mentioned in the function, not justGravatar xleroy2014-03-29
| | | | | | | | 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
* Revert commits r2435 and r2436 (coarser RTLtyping / finer Lineartyping):Gravatar xleroy2014-03-28
| | | | | | | 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
* CommentsGravatar xleroy2014-03-27
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2437 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Move wt_instr_inv where it belongs.Gravatar xleroy2014-03-27
| | | | | | | Update Makefile and dependencies. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2436 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised division of labor between RTLtyping and Lineartyping:Gravatar xleroy2014-03-27
| | | | | | | | | | | | | | | | | - 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 machine registers that contain a single-precision float. - Stackingproof: adapted accordingly. This addresses a defect report by D. Dickman whereas RTLtyping was rejecting code that used a RTL pseudoreg to hold both double- and single-precision floats. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2435 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* In Regalloc, dead code elimination, don't eliminate move operationsGravatar xleroy2014-02-23
| | | | | | | | that pop the x87 FP stack (var <- FP0). Otherwise, (void) f(); where f returns a float eventually produces a FP stack overflow. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2416 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
* Recognize .i and .p source files as C sources not to be preprocessed.Gravatar xleroy2014-02-05
| | | | | | | Add CompCert version number and command line as comments in generated asm. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2407 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Back to origins: suppress Mfloat64al32 chunk and align Mfloat64 to 4.Gravatar xleroy2014-01-12
| | | | | | | - Revised printing of intermediate RTL code. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2403 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Introduce and use the platform-specific Archi module giving:Gravatar xleroy2014-01-03
| | | | | | | | | | - 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
* Updated neededness analysis for IA32.Gravatar xleroy2014-01-02
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2400 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Updated ARM backend wrt new static analyses and optimizations.Gravatar xleroy2014-01-02
| | | | | | | | NeedOp, Deadcode: must have distinct needs per argument of an operator. This change remains to be propagated to IA32 and PPC. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2399 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Ctypes.sizeof ty = 0 for empty types ty (zero-sized array, empty struct/union).Gravatar xleroy2013-12-30
| | | | | | | __builtin_memcpy_aligned now supports the case sz = 0. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2392 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
* Support "default" cases in the middle of a "switch", not just at the end.Gravatar xleroy2013-12-21
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2383 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of branch value-analysis.Gravatar xleroy2013-12-20
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2381 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Recognize __builtin_fabs as an operator, not just a builtin,Gravatar xleroy2013-11-06
| | | | | | | | | enabling more aggressive optimizations. - Less aggressive CSE for EF_builtin builtins, causes problems for __builtin_write{16,32}_reversed. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2363 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised renumbering of nodes and registers so that main function is not ↵Gravatar xleroy2013-10-18
| | | | | | shifted by 1 git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2346 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Cminor parsing and printing (from Andrew Tolmach)Gravatar xleroy2013-10-16
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2345 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Do not use Format for faster printing of RTL, XTL, LTL, MachGravatar xleroy2013-09-26
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2337 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Small improvements in compilation times for the register allocation pass.Gravatar xleroy2013-09-20
| | | | | | | Maps.v: add a PTree.fold1 operation that doesn't maintain the key. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2329 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Floats.v, Nan.v: hard-wire the general shape of binop_pl, so that no axioms Gravatar xleroy2013-09-14
| | | | | | | | | are necessary, only two parameters (default_pl and choose_binop_pl). SelectDiv: optimize FP division by a power of 2. ConstpropOp: optimize 2.0 * x and x * 2.0 into x + x. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2326 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Oops, wrong commit of generated files.Gravatar xleroy2013-08-24
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2311 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Forgot to add these two files.Gravatar xleroy2013-08-24
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2310 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Simplify LPMap by smashing bottoms.Gravatar xleroy2013-08-12
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2306 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Change interface of Kildall solvers to avoid precomputing the map pc -> list ↵Gravatar xleroy2013-08-12
| | | | | | of successors. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2305 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Optimize integer divisions by positive constants, turning them intoGravatar xleroy2013-07-29
| | | | | | | multiply-high and shifts. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2300 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Treat casts int64 -> float32 as primitive operations instead of twoGravatar xleroy2013-07-03
| | | | | | | | casts int64 -> float64 -> float32. The latter causes double rounding errors. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2290 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Typo in commentGravatar xleroy2013-06-17
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2279 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
* Hunting stack overflows again:Gravatar xleroy2013-05-27
| | | | | | | | PrintLTL: List.map -> List.rev_map IRC: @ -> List.rev_append + don't maintain "extra" lists on precolored nodes. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2262 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
* Add option -fno-tailcalls to turn off tailcall elimination (causes problem ↵Gravatar xleroy2013-05-17
| | | | | | | | | with some static analysis tools). */PrintAsm.ml: don't cfa_adjust at Pfreeframe, as more code from the function can appear after (in case of tailcalls). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2256 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Add interferences at function entry with destroyed_at_function_entry.Gravatar xleroy2013-05-08
| | | | | | | Improve dead code elimination for Xparmove. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2241 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Refactoring: move definition of chunk_of_type to AST.v.Gravatar xleroy2013-05-06
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2238 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Extend CSE of loads following stores to chunks Mint64 and Mfloat64al32.Gravatar xleroy2013-05-02
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2231 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Coq-defined equality functions for Allocation.Gravatar xleroy2013-05-01
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2225 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Removing modules now unusedGravatar xleroy2013-05-01
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2224 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Expand 64-bit integer comparisons into 32-bit integer comparisons.Gravatar xleroy2013-04-29
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2218 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
* RTLtyping: now performed entirely in Coq, no need for an external Caml ↵Gravatar xleroy2013-03-22
| | | | | | oracle + a validator. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2157 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* More aggressive CSE across Ibuiltin.Gravatar xleroy2013-03-17
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2152 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Assorted changes to reduce stack and heap requirements when compiling very ↵Gravatar xleroy2013-03-16
| | | | | | big functions. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2151 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Machsem: no longer useful.Gravatar xleroy2013-03-14
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2150 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Glasnost: making transparent a number of definitions that were opaqueGravatar xleroy2013-03-10
| | | | | | | | for no good reason. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2140 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Assorted cleanups, esp. to avoid generating _rec and _rect recursors in Gravatar xleroy2013-03-09
| | | | | | | | submodules. (Extraction does not remove them, then.) common/Switch: replaced use of FMaps by our own Maps. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2139 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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