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* Handle large static initializers for global arraysXavier Leroy2015-11-091-1/+1
| | | | Use tail-recursive operations to implement transformations on initializers for global arrays. This way, very large static initializers no longer cause stack overflows at compile-time.
* Updated PR by removing whitespaces. Bug 17450.Bernhard Schommer2015-10-201-5/+5
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* Turn off copy optimization when returning a composite by reference.Xavier Leroy2015-07-081-4/+10
| | | | | | The copy optimization is not correct in case of overlap between destination and source. We would need to use an hypothetical __builtin_memmove_aligned that can cope with overlap to implement the copy at return of callee.
* Extended inline asm: handle missing cases.Xavier Leroy2015-04-281-1/+5
| | | | | | Bitfields: better translation of initializers and compound literals; run this pass before unblocking. Transform.stmt: extend with ability to treat unblocked code. test/regression: more bitfield tests.
* Improvements in the StructReturn transformation (ABI conformance for passing ↵Xavier Leroy2015-03-201-21/+34
| | | | | | | | 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 Leroy2015-03-141-54/+106
| | | | | | | | 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
* ABI compatibility for struct/union function arguments passed by value.Xavier Leroy2015-01-271-57/+281
| | | | | | | | | | The passing of struct/union arguments by value implemented in the verified part of CompCert is not compatible with the ARM, PowerPC and x86 ABI. Here we enrich the StructReturn source-to-source emulation pass so that it implements the calling conventions defined in these ABIs. Plus: for x86, implement the returning of struct/union results by value in a way compatible with the ABI.
* Support C99 compound literals (by expansion in Unblock pass).xleroy2014-08-211-1/+3
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2615 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Do not transform __builtin_va_arg for a struct or union type, this causesxleroy2014-02-241-31/+37
| | | | | | | | an ugly error message in the back-end. Rather, leave it as is, and let C2C handle the error. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2422 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Wrong type used for transforming lval = f(...)xleroy2014-02-211-1/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2413 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Hack StructReturn to better adhere to PowerPC and ARM calling conventions.xleroy2013-12-201-57/+122
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2382 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
* - Support for _Alignof(ty) operator from ISO C 2011xleroy2012-02-261-0/+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
* Interp: help debug stuck expressionsxleroy2012-02-101-4/+1
| | | | | | | | StructReturn: was building an ill-typed Ecomma expression Cutil: export "ecast" git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1816 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the "volatile" branch:xleroy2012-02-041-0/+223
- 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
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