compcert - CompCert fork with minor modifications for Vericert.

	Commit message (Collapse)	Author	Age	Files	Lines
*	Support for 64-bit architectures: x86 in 64-bit mode	Xavier Leroy	2016-10-01	1	-5/+14
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	This commit enriches the IA32 port so that it supports x86 processors in 64-bit mode as well as in 32-bit mode, depending on the value of Archi.ptr64, which itself is set from the configuration model. To activate x86-64 bit support, configure with "x86_64-linux". Main steps: - Enrich Op.v and Asm.v with 64-bit operations - SelectLong: in 64-bit mode, use 64-bit operations directly; in 32-bit mode, fall back on the old implementation based on pairs of 32-bit integers - Conventions1: support x86-64 ABI in addition to the 32-bit ABI. - Add support for the new 64-bit operations everywhere. - runtime/x86_64: implementation of the supporting library appropriate for x86 in 64-bit mode To do: - More optimizations are possible on 64-bit integer arithmetic operations. - Could add new chunks to load, say, an unsigned byte into a 64-bit long (currently we load as a 32-bit int then zero-extend). - Implements the wrong ABI for struct passing.
*	Port to Coq 8.5pl2	Xavier Leroy	2016-07-08	1	-3/+2
\| \| \| \| \|	Manual merging of branch jhjourdan:coq8.5. No other change un functionality.
*	Updated PR by removing whitespaces. Bug 17450.	Bernhard Schommer	2015-10-20	1	-2/+2
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*	The NaN behavior of float_of_single differs on PowerPC and on IA32/ARM.	xleroy	2014-07-28	1	-1/+4
\| \| \| \|	git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2550 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
*	Merge of "newspilling" branch:	xleroy	2014-07-23	1	-3/+12
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	- Support single-precision floats as first-class values - Introduce chunks Many32, Many64 and types Tany32, Tany64 to support saving and restoring registers without knowing the exact types (int/single/float) of their contents, just their sizes. - Memory model: generalize the opaque encoding of pointers to apply to any value, not just pointers, if chunks Many32/Many64 are selected. - More properties of FP arithmetic proved. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2537 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
*	Introduce and use the platform-specific Archi module giving:	xleroy	2014-01-03	1	-0/+34
	- 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