Commit message (Collapse) | Author | Age | Files | Lines | |
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* | Consistent use of 'override' for virtual methods in derived classes. | Henner Zeller | 2018-07-20 | 1 | -2/+2 |
| | | | | | | | | | o Not all derived methods were marked 'override', but it is a great feature of C++11 that we should make use of. o While at it: touched header files got a -*- c++ -*- for emacs to provide support for that language. o use YS_OVERRIDE for all override keywords (though we should probably use the plain keyword going forward now that C++11 is established) | ||||
* | Add optimization of tristate buffer with constant control input | Clifford Wolf | 2018-05-12 | 1 | -0/+17 |
| | | | | Signed-off-by: Clifford Wolf <clifford@clifford.at> | ||||
* | Don't track , ... contradictions through x/z-bits | Clifford Wolf | 2017-08-25 | 1 | -1/+4 |
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* | Add removing of redundant pairs of bits in ==, ===, !=, and !== to opt_expr | Clifford Wolf | 2017-08-25 | 1 | -0/+72 |
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* | Add "opt_expr -fine" feature to remove neutral bits from reduce and logic ↵ | Clifford Wolf | 2017-07-26 | 1 | -0/+47 |
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* | Fix and_or_buffer optimization in opt_expr for signed operators | Clifford Wolf | 2017-07-01 | 1 | -2/+2 |
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* | Squelch trailing whitespace | Larry Doolittle | 2017-04-12 | 1 | -3/+3 |
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* | Fixed some "used uninitialized" warnings in opt_expr | Clifford Wolf | 2017-02-11 | 1 | -1/+2 |
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* | Add optimization of (a && 1'b1) and (a || 1'b0) | Clifford Wolf | 2017-02-11 | 1 | -7/+22 |
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* | Fix issue #306, "Bug in opt -full" | C-Elegans | 2017-02-10 | 1 | -1/+19 |
| | | | | | | Add check for whether the high bit in the constant expression is greater than the width of the variable, and optimizes that to a constant 1 or 0 | ||||
* | Fix indenting and log messages in code merged from opt_compare_pr | Clifford Wolf | 2017-01-31 | 1 | -102/+120 |
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* | Refactor and generalize the comparision optimization | C-Elegans | 2017-01-30 | 1 | -22/+42 |
| | | | | | | | | Generalizes the optimization to: a < C, a >= C, C > a, C <= a | ||||
* | Do not use b.as_int() in calculation of bit set | C-Elegans | 2017-01-21 | 1 | -8/+29 |
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* | Optimize compares to powers of 2 | C-Elegans | 2017-01-16 | 1 | -0/+61 |
| | | | | | | | | | | | | | | | Remove opt_compare and put comparison pass in opt_expr assuming a [7:0] is unsigned a >= (1<<x) becomes |a[7:x] a < (1<<x) becomes !a[7:x] Additionally: a >= 0 becomes constant true, a < 0 becomes constant false delete opt_compare.cc revert opt.cc to commit b7cfb7dbd (remove opt_compare step) | ||||
* | Added opt_expr support for div/mod by power-of-two | Clifford Wolf | 2016-05-29 | 1 | -0/+69 |
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* | Added "yosys -D" feature | Clifford Wolf | 2016-04-21 | 1 | -1/+1 |
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* | Improvements in opt_expr | Clifford Wolf | 2016-04-21 | 1 | -12/+62 |
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* | Typo fixes in opt_expr and opt_merge | Clifford Wolf | 2016-03-31 | 1 | -1/+1 |
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* | Renamed opt_const to opt_expr | Clifford Wolf | 2016-03-31 | 1 | -0/+1164 |