sparse/sparse-dev.git - Sparse's development tree with unstable git history

Age	Commit message (Collapse)	Author	Files	Lines
2018-07-23	cast: simplify [ZS]EXT(AND(x,M),N)	Luc Van Oostenryck	1	-1/+0
	A OP_AND with a constant value followed by a sign or zero-extension can often be moved after the extension. This is good because it can trigger the cancellation of the OP[ZS]EXT with a preceding OP_TRUNC, a common situation with bitfields. Note: This 'simplification' is less desirable if there is no preceding OP_TRUNC, for example, in a sequence like: and.32 %t <- %a, $mask *ext.64 %r <- %t If needed, this can be filtered out at some later stage. Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
2018-07-23	add testcases for casts & bitfield insertion/extraction	Luc Van Oostenryck	1	-0/+28
	There is several difficulties some related to unclear semantic of our IR instructions and/or type evaluation. Add testcases trying to cover this area. Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>