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* IA32 port: more faithful treatment of pseudoregister ST0.xleroy2011-08-081-2/+7
| | | | | | | Related general change: support for destroyed_at_moves. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1700 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of branch "unsigned-offsets":xleroy2011-04-091-13/+72
| | | | | | | | | | | | | | - In pointer values "Vptr b ofs", interpret "ofs" as an unsigned int. (Fixes issue with wrong comparison of pointers across 0x8000_0000) - Revised Stacking pass to not use negative SP offsets. - Add pointer validity checks to Cminor ... Mach to support the use of memory injections in Stacking. - Cleaned up Stacklayout modules. - IA32: improved code generation for Mgetparam. - ARM: improved code generation for op-immediate instructions. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1632 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the reuse-temps branch:xleroy2010-09-021-1/+4
| | | | | | | | | | | | - Reload temporaries are marked as destroyed (set to Vundef) across operations in the semantics of LTL, LTLin, Linear and Mach, allowing Asmgen to reuse them. - Added IA32 port. - Cleaned up float conversions and axiomatization of floats. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1499 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Adding __builtin_annotationxleroy2010-09-011-8/+8
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1497 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Support for inlined built-ins.xleroy2010-06-291-208/+4
| | | | | | | | | | | | | AST: add ef_inline flag to external functions. Selection: recognize calls to inlined built-ins and inline them as Sbuiltin. CminorSel to Asm: added Sbuiltin/Ibuiltin instruction. PrintAsm: adapted expansion of builtins. C2Clight: adapted detection of builtins. Conventions: refactored in a machine-independent part (backend/Conventions) and a machine-dependent part (ARCH/SYS/Conventions1). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1356 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Cleaned up handling of linker sections.xleroy2010-05-081-143/+11
| | | | | | | Minor updates on ARM code generator. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1339 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Coloring: allow to exclude user-specified registers from allocation.xleroy2010-04-101-3/+28
| | | | | | | CPragmas (PPC/EABI only): add #pragma reserve_register git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1314 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Handling of volatile accesses through builtin functions.xleroy2010-03-081-35/+34
| | | | | | | | | Added support for processor-specific builtin functions. Added some PowerPC instructions as builtins. Updated #pragma section handling. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1285 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revised handling of #pragma section and small data areasxleroy2010-01-271-43/+125
| | | | 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/+134
| | | | | | | | | | #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
* Use callee-save regs starting with R31/F31 and going down, like Diab doesxleroy2009-11-021-14/+14
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1166 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Adapted to work with Coq 8.2-1v1.4.1xleroy2009-06-051-1/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1076 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Reserve register GPR13 for compatibility with EABI. Optimize operations 'x ↵xleroy2009-02-261-6/+6
| | | | | | >= 0' and 'x < 0'. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@999 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Added alignment constraints to memory loads and stores.xleroy2009-01-111-4/+0
| | | | | | | | | | | - In Cminor and below, removed pointer validity check in semantics of comparisons, so that evaluation of expressions is independent of memory state. - In Cminor and below, removed "alloc" instruction. - Cleaned up commented-away parts. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@945 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Continuation of PowerPC/EABI portxleroy2008-12-311-6/+10
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@933 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Reorganized the development, modularizing away machine-dependent parts.xleroy2008-12-302-0/+877
Started to merge the ARM code generator. Started to add support for PowerPC/EABI. Use ocamlbuild to construct executable from Caml files. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@930 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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