7 commits

Author	SHA1	Message	Date
George Rennie	41aaaa153e	peepopt shiftadd: Only match for sufficiently small constant widths ... This addresses issue #4445	2024-06-12 14:38:12 +01:00
Philippe Sauter	cbdf9b2f9c	peepopt: handle empty src-attribute in shiftadd	2024-01-31 13:07:01 +01:00
Philippe Sauter	7f8b6dd982	peepopt: delete unnecessary comment in shiftadd	2024-01-30 09:51:21 +01:00
Philippe Sauter	68a9aa7c29	peepopt: handle offset too large in shiftadd ... If the offset is larger than the signal itself, meaning the signal is completely shifted out, it tried to extract a negative amount of bits from the old signal. This RTL pattern is suspicious since it is a complicated way of arriving at a constant value, so we warn the user.	2024-01-26 16:44:30 +01:00
phsauter	3618294bac	peepopt: Add assert of consistent shiftadd data	2023-11-06 16:35:00 +01:00
phsauter	9ca57d9f13	peepopt: fix and refactor shiftadd ... - moved all selection and filtering logic to the match block - applied less-verbose code suggestions - removed constraint on number of bits in shift-amount - added check for possible wrap-arround in the operation	2023-11-06 14:01:37 +01:00
Philippe Sauter	72c6a01e67	peepopt: Add initial shiftadd pattern	2023-11-06 14:01:37 +01:00