compcert - CompCert fork with minor modifications for Vericert.

	Commit message (Collapse)	Author	Age	Files	Lines
*	Update ARM port. Not tested yet.	Xavier Leroy	2016-10-25	1	-3/+4
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*	Turn 64-bit integer division and modulus by constants into multiply-high	Xavier Leroy	2016-10-04	1	-5/+247
\| \| \| \| \| \|	This trick was already implemented for 32-bit integer division and modulus. Here we extend it to the 64-bit case. For 32-bit target processors, the runtime library must implement 64-bit multiply-high (signed and unsigned). Tentative implementations are provided for IA32 and PowerPC, but need testing.
*	Improve code generation for 64-bit signed integer division	Xavier Leroy	2016-10-02	1	-2/+117
\| \| \| \| \| \|	Implement the 'shift right extended' trick, both in the generic implementation (backend/SplitLong) and in the IA32 port. Note that now SelectDiv depends on SelectLong, and that some work was moved from SelectLong to SelectDiv.
*	Support for 64-bit architectures: generic support	Xavier Leroy	2016-10-01	1	-27/+18
\| \| \| \| \| \| \| \| \| \| \|	- Introduce Archi.ptr64 parameter. - Define module Ptrofs of integers as wide as a pointer (64 if Archi.ptr64, 32 otherwise). - Use Ptrofs.int as the offset type for Vptr values and anywhere pointer offsets are manipulated. - Modify Val operations that handle pointers (e.g. Val.add, Val.sub, Val.cmpu) so that in 64-bit pointer mode it is the "long" operation (e.g. Val.addl, Val.subl, Val.cmplu) that handles pointers. - Update the memory model accordingly. - Modify C operations that handle pointers (e.g. addition, subtraction, comparisons) accordingly. - Make it possible to turn off the splitting of 64-bit integers into pairs of 32-bit integers. - Update the compiler front-end and back-end accordingly.
*	Updated PR by removing whitespaces. Bug 17450.	Bernhard Schommer	2015-10-20	1	-98/+98
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*	Merge of "newspilling" branch:	xleroy	2014-07-23	1	-0/+16
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	- 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
*	Add option -Os to optimize for code size rather than for execution speed.	xleroy	2014-02-19	1	-17/+25
\| \| \| \| \| \| \| \|	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
*	Floats.v, Nan.v: hard-wire the general shape of binop_pl, so that no axioms	xleroy	2013-09-14	1	-0/+18
\| \| \| \| \| \| \| \| \|	are necessary, only two parameters (default_pl and choose_binop_pl). SelectDiv: optimize FP division by a power of 2. ConstpropOp: optimize 2.0 * x and x * 2.0 into x + x. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2326 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
*	Optimize integer divisions by positive constants, turning them into	xleroy	2013-07-29	1	-0/+547
	multiply-high and shifts. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2300 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e