compcert - CompCert fork with minor modifications for Vericert.

	Commit message (Collapse)	Author	Age	Files	Lines
*	Updated PR by removing whitespaces. Bug 17450.	Bernhard Schommer	2015-10-20	1	-4/+4
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*	Value analysis: keep track of pointer values that leak through arithmetic ↵	Xavier Leroy	2015-07-19	1	-3/+3
\| \| \| \| \| \|	operations with undefined behaviors. Consider (x ^ 1) ^ 1 where x is a intptr_t containing a pointer value. "x ^ 1" evaluates to Vundef in the CompCert semantics, hence the value analysis, in strict mode, gives abstract result Ifptr Pbot (= any number but not a pointer). In relaxed mode, we now give abstract result Ifptr (poffset p) where p is the abstraction of the pointer, thus keeping track of the actual leak of the pointer value.
*	Prevent constant propagation on Oindirectsymbol addresses.	Xavier Leroy	2014-12-11	1	-2/+11
\| \| \| \| \|	(Otherwise they are turned into Oaddrsymbol or global addressing modes, causing linking issues on MacOS X.)
*	Merge of "newspilling" branch:	xleroy	2014-07-23	1	-0/+13
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	- 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
*	Refactoring: move symbol_offset into Genv.	xleroy	2014-05-24	1	-1/+1
\| \| \| \|	git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2503 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
*	Support Onot operator / notl instruction. More constant propagation during ↵	xleroy	2014-04-06	1	-0/+1
\| \| \| \| \| \|	selection. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2451 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
*	Add option -Os to optimize for code size rather than for execution speed.	xleroy	2014-02-19	1	-0/+1
\| \| \| \| \| \| \| \|	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
*	Updated ARM backend wrt new static analyses and optimizations.	xleroy	2014-01-02	1	-0/+12
\| \| \| \| \| \| \| \|	NeedOp, Deadcode: must have distinct needs per argument of an operator. This change remains to be propagated to IA32 and PPC. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2399 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
*	Merge of branch value-analysis.	xleroy	2013-12-20	1	-0/+158
	git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2381 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e