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* Diab defines w_char to be unsigned short.Bernhard Schommer2015-07-071-0/+1
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* Improvements in the StructReturn transformation (ABI conformance for passing ↵Xavier Leroy2015-03-201-9/+1
| | | | | | | | 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/+1
| | | | | | | | 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 Leroy2015-01-271-3/+16
| | | | | | | | | | 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.
* PR#6: fix handling of wchar_t and assignments from wide string literals.Xavier Leroy2014-12-301-0/+2
| | | | | | | | | | - cparser/Machine indicates whether wchar_t is signed or not (it is signed int in Linux and BSD, but unsigned short in Win32) - The type of a wide string literal is "wchar_t *" if the typedef "wchar_t" exists in the environment (e.g. after #include <stddef.h>). Only if wchar_t is not defined do we use the default from Machine. - Permit initialization of any integer array from a wide string literal, not just an array of wchar_t.
* Hack StructReturn to better adhere to PowerPC and ARM calling conventions.xleroy2013-12-201-1/+2
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2382 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Revert suppression of __builtin_{read,write}_reversed for x86 and ARM,xleroy2013-04-291-0/+1
| | | | | | | | for compatibility with earlier CompCert versions. But don't use them in PackedStructs. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2216 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* cparser/*: refactoring of the expansion of read-modify-write operatorsxleroy2011-11-261-1/+1
| | | | | | | | | cparser/PackedStructs: treat r-m-w operations over byte-swapped fields cparser/PackedStructs: allow static initialization of packed structs test/regression: more packedstruct tests git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1738 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Bitfields: MSB-to-LSB in addition to LSB-to-MSBxleroy2011-03-101-2/+9
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1600 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Switching to the new C parser/elaborator/simplifierxleroy2010-03-031-0/+51
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1269 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e