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* Inlining of static functions which are only called once. (#37)Bernhard Schommer2017-12-071-0/+1
| | | | | | | | | 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.
* Add optimization option finline.Bernhard Schommer2017-04-071-0/+1
| | | | | | The new option f(no-)inline controlls whether inlining is active or not. Bug 21343.
* Refactored debugging options.Bernhard Schommer2016-10-141-1/+1
| | | | | | | The options controlling the generation of debugging information are now moved into the Debug module. Futhermore the -gdepth options are replaced in favor of a more gcc compatible version. Bug 20193
* Remove undocumented option. Bug 20193Bernhard Schommer2016-10-141-1/+0
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* Moved shared frontend code in own file.Bernhard Schommer2016-05-241-0/+2
| | | | | | | Clightgen and CompCert share the code for preprocessing as well as parsing C files. The code as well as command line switches is moved in the new module Frontend. Bug 18768
* Added option to dump preprocessed source code.Bernhard Schommer2016-01-221-0/+1
| | | | The new option -dprepro allows it to keep the preprocessed source code files.
* Revise and simplify the -fstruct-return and -fstruct-passing options.Xavier Leroy2015-12-081-3/+1
| | | | | | - Rename '-fstruct-return' into '-fstruct-passing', because this emulation affects both function result passing and function argument passing. Keep '-fstruct-return' as a deprecated synonymous for '-fstruct-passing' - Remove the ability to change the ABI for struct passing via the '-fstruct-passing=<abi>' and '-fstruct-return=<abi>' command-line flags. This was more confusing than useful. - Produce an error if a struct/union is passed as function argument and '-fstruct-passing' is not set. This used to be supported, using CompCert's default ABI for passing struct arguments. However, this default ABI does not match any of the standard ABIs of our target platforms, so it is better to reject than to silently produce ABI-incompatible code.
* Added now option to control debug output.Bernhard Schommer2015-11-161-1/+1
| | | | | | | | | | | The new option gdepth subumes the gonly-globals. The option allows it to control the level of information that is produced. This option allows it to generate debugging inforation for: -Only globals -Global and local variables but without location information for the local variable -Full information Bug 17638.
* New option to control the debug information build.Bernhard Schommer2015-11-041-0/+1
| | | | | | The new option -gonly-global allows the generation of debuging information for global variables only. Bug 17566.
* Implemented the usage of DW_AT_ranges for non-contiguous address ranges.Bernhard Schommer2015-10-161-0/+1
| | | | | | | | | | The gcc produces DW_AT_ranges for non-contiguous address ranges, like compilation units containing functions which are placed in different ELF-sections or lexical scopes that are split up. With this commit CompCert also uses this DWARF v3 feature for gnu backend based targets. In order to ensure backward compability a flag is added which avoids this and produces debug info in DWARF v2 format. Bug 17392.
* bug 17392: remove trailing whitespace in source filesMichael Schmidt2015-10-141-1/+1
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* Added flag for the renaming of static functions.Bernhard Schommer2015-05-191-0/+1
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* Improvements in the StructReturn transformation (ABI conformance for passing ↵Xavier Leroy2015-03-201-2/+2
| | | | | | | | composites). - Implement the "1/2/4/8" composite return policy, used by IA32/MacOS X and IA32/BSD. - Move the default passing conventions from Machine.ml to compcert.ini, making it easier to test the various conventions. - More comprehensive interoperability test in regression/interop1.c.
* Improve performance and configurability for the StructReturn pass.Xavier Leroy2015-03-141-0/+2
| | | | | | | | configure: special ABI value for IA32/MacOSX and PowerPC/Linux cparser/Machine: special config for PowerPC/Linux cparser/StructReturn: generate better code for return-as-int driver/Clflags, driver/Driver: add options -fstruct-return=<convention> and -fstruct-passing=<convention> to simplify testing
* Add flags to control individual optimization passes + flag -O0 for turning ↵Xavier Leroy2014-11-161-0/+3
| | | | them off.
* Moved the timing facility to a seperate file.Bernhard Schommer2014-09-291-50/+0
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* Rename "-fthumb" option into "-mthumb" for GCC compatibility.xleroy2014-08-191-1/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2572 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* configure: distinguish between ABI and processor model.xleroy2014-07-291-2/+2
| | | | | | | | ARM: various tweaks, incl. support for SDIV and UDIV insns when available. test/regression/funptr2.c: Thumb does weird things with <function ptr>+1. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2555 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* ARM port: add support for Thumb2. To be tested.xleroy2014-07-271-0/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2549 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of branch linear-typing:xleroy2014-04-061-0/+51
| | | | | | | | | | | | | | | | | | | | | | | 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
* Add option -Os to optimize for code size rather than for execution speed.xleroy2014-02-191-0/+1
| | | | | | | | 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
* - Back to origins: suppress Mfloat64al32 chunk and align Mfloat64 to 4.xleroy2014-01-121-6/+1
| | | | | | | - Revised printing of intermediate RTL code. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2403 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* More tolerance for functions declared without a prototypexleroy2013-12-281-0/+1
| | | | | | | | (option -funprototyped, on by default). Error if call to vararg function and -fvararg-calls is off. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2389 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Simpler, more robust emulation of calls to variadic functions:xleroy2013-12-281-0/+1
| | | | | | | | | | | | | | - 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
* Merge of branch value-analysis.xleroy2013-12-201-0/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2381 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Rename "-fno-sse" into "-fno-fpu" and honor it on PowerPC as well.xleroy2013-11-271-1/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2374 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Add option -fno-tailcalls to turn off tailcall elimination (causes problem ↵xleroy2013-05-171-0/+1
| | | | | | | | | 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
* Preliminary support for debugging info (-g).xleroy2013-05-171-0/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2253 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* driver: removed option -flonglongxleroy2013-04-221-1/+0
| | | | | | | | test/c: added SHA3 cfrontend: support casts between long long and pointers, and comparisons between them. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2213 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Big merge of the newregalloc-int64 branch. Lots of changes in two directions:xleroy2013-04-201-0/+1
| | | | | | | | | 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
* Updated PowerPC port to new integers.xleroy2013-02-121-0/+2
| | | | | | | Added options -falign-branch-targets and -falign-cond-branches (experimental). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2113 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Support for inline assembly (asm statements).xleroy2012-12-181-0/+1
| | | | | | | cparser: add primitive support for enum types. bitfield emulation: for bitfields with enum type, choose signed/unsigned as appropriate git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2074 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Generate output files in current directory; can be overriden with -o optionxleroy2012-10-081-1/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2061 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Added option -falign-functionsxleroy2012-07-011-0/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1945 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the newmem branch:xleroy2012-05-211-1/+2
| | | | | | | | | | - 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
* checklink: first import of Valentin Robert's validator for asm and linkxleroy2012-03-281-0/+1
| | | | | | | cparser: renamed Errors to Cerrors; removed packing into Cparser. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1856 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* PowerPC: remove the fmadd and fmsub operators/Asm instructionsxleroy2012-03-071-1/+0
| | | | | | | | (definitely not semantics-preserving; hard to justify). CPragmas: make sure SDAs are not recognized on MacOSX. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1836 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Added command-line options -Wp,<opt> -Wa,<opt> -Wl,<opt>xleroy2012-02-291-0/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1832 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the "volatile" branch:xleroy2012-02-041-3/+1
| | | | | | | | | | | | - 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
* Corrected initialization of char arrays by string literals.xleroy2011-10-171-0/+1
| | | | | | | Added -flongdouble option (to turn long double into double) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1731 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Presimplification SimplVolatile: cleaned up and integrated.xleroy2011-08-181-0/+1
| | | | | | test/*/Makefile: normalized 'bench' target git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1717 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Added animation of the CompCert C semantics (ccomp -interp)xleroy2011-07-281-0/+1
| | | | | | | | 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
* cparser: support for attributes over struct and union.xleroy2011-05-121-0/+1
| | | | | | | | cparser: added experimental emulation of packed structs (PackedStruct.ml) git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1650 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* powerpc/PrintAsm.ml arm/PrintAsm.ml: updated (no label elimination).xleroy2011-05-081-0/+1
| | | | | | | | | | Added -dmach option and corresponding printer for Mach code. CleanupLabelsproof.v: fixed for ARM Driver.ml: -E sends output to stdout; support for .s and .S source files. cparser/Elab.ml: spurious comment deleted. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1648 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Better emulation of long long as a struct.xleroy2010-09-041-1/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1500 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of branches/full-expr-4:xleroy2010-08-181-0/+8
| | | | | | | | | | | | | | | | | | | | | | - Csyntax, Csem: source C language has side-effects within expressions, performs implicit casts, and has nondeterministic reduction semantics for expressions - Cstrategy: deterministic red. sem. for the above - Clight: the previous source C language, with pure expressions. Added: temporary variables + implicit casts. - New pass SimplExpr to pull side-effects out of expressions (previously done in untrusted Caml code in cparser/) - Csharpminor: added temporary variables to match Clight. - Cminorgen: adapted, removed cast optimization (moved to back-end) - CastOptim: RTL-level optimization of casts - cparser: transformations Bitfields, StructByValue and StructAssign now work on non-simplified expressions - Added pretty-printers for several intermediate languages, and matching -dxxx command-line flags. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1467 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Suppressed -fall-extensions option, too dangerous wrt flonglongxleroy2010-03-031-3/+0
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1275 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Switching to the new C parser/elaborator/simplifierxleroy2010-03-031-1/+8
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1269 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised handling of #pragma section and small data areasxleroy2010-01-271-0/+6
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1235 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* PowerPC/EABI port: preliminary support for #pragma section andxleroy2009-11-031-0/+1
| | | | | | | | | | #pragma use_section. Some clean-ups in Cil2Csyntax. Separate mach-dep parts of extraction/extraction.v into <arch>/extractionMachdep.v git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1167 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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