| Commit message (Collapse) | Author | Age | Files | Lines | |
|---|---|---|---|---|---|
| * | Fix handling of z_digit "?" and fix optimization of cmp with "z" | Clifford Wolf | 2019-09-13 | 1 | -0/+4 |
| | | | | | Signed-off-by: Clifford Wolf <clifford@clifford.at> | ||||
| * | Copy-paste typo | Eddie Hung | 2019-08-22 | 1 | -1/+1 |
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| * | Respect opt_expr -keepdc as per @cliffordwolf | Eddie Hung | 2019-08-22 | 1 | -1/+1 |
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| * | Handle $shift and Y_WIDTH > 1 as per @cliffordwolf | Eddie Hung | 2019-08-22 | 1 | -4/+8 |
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| * | Add cover() | Eddie Hung | 2019-08-22 | 1 | -0/+1 |
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| * | Canonical form | Eddie Hung | 2019-08-22 | 1 | -5/+5 |
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| * | opt_expr to trim A port of $shiftx if Y_WIDTH == 1 | Eddie Hung | 2019-08-21 | 1 | -0/+17 |
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| * | Merge pull request #1283 from YosysHQ/clifford/fix1255 | Clifford Wolf | 2019-08-17 | 1 | -1/+2 |
| |\ | | | | | Fix various NDEBUG compiler warnings | ||||
| | * | Merge branch 'master' into clifford/fix1255 | Clifford Wolf | 2019-08-15 | 1 | -356/+404 |
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| | * | | Fix various NDEBUG compiler warnings, closes #1255 | Clifford Wolf | 2019-08-13 | 1 | -1/+2 |
| | | | | | | | | | | | | | Signed-off-by: Clifford Wolf <clifford@clifford.at> | ||||
| * | | | Use ID::keep more liberally too | Eddie Hung | 2019-08-15 | 1 | -1/+1 |
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| * | | | Use more ID::{A,B,Y,blackbox,whitebox} | Eddie Hung | 2019-08-15 | 1 | -159/+159 |
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| * | | | Fix | Eddie Hung | 2019-08-15 | 1 | -2/+2 |
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| * | | | Convert a few more to ID | Eddie Hung | 2019-08-15 | 1 | -20/+20 |
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| * | | Merge branch 'master' into clifford/ids | Clifford Wolf | 2019-08-15 | 1 | -1/+49 |
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| | * | | Merge remote-tracking branch 'origin/master' into eddie/fix_1262 | Eddie Hung | 2019-08-11 | 1 | -35/+30 |
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| | * | | Wrong way around | Eddie Hung | 2019-08-10 | 1 | -2/+2 |
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| | * | | cover_list -> cover as per @cliffordwolf | Eddie Hung | 2019-08-10 | 1 | -2/+2 |
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| | * | | Grammar | Eddie Hung | 2019-08-09 | 1 | -1/+1 |
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| | * | | Separate $alu handling | Eddie Hung | 2019-08-09 | 1 | -7/+50 |
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| | * | | opt_expr -fine to trim LSBs of $alu too | Eddie Hung | 2019-08-09 | 1 | -4/+9 |
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| * | | | Use ID() macro in all of passes/opt/ | Clifford Wolf | 2019-08-11 | 1 | -360/+360 |
| | |/ |/| | | | | | | | | | | | | | | | | | This was obtained by running the following SED command in passes/opt/ and then using "meld foo.cc foo.cc.orig" to manually fix all resulting compiler errors. sed -i.orig -r 's/"\\\\([a-zA-Z0-9_]+)"/ID(\1)/g; s/"(\$[a-zA-Z0-9_]+)"/ID(\1)/g;' *.cc Signed-off-by: Clifford Wolf <clifford@clifford.at> | ||||
| * | | Merge remote-tracking branch 'origin/master' into eddie/cleanup | Eddie Hung | 2019-08-07 | 1 | -0/+25 |
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| | * | Move LSB-trimming functionality from wreduce to opt_expr | Eddie Hung | 2019-08-06 | 1 | -0/+25 |
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| * | | Cleanup opt_expr.cc | Eddie Hung | 2019-08-06 | 1 | -35/+30 |
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| * | Improve opt_expr and opt_clean handling of (partially) undriven and/or ↵ | Clifford Wolf | 2019-05-03 | 1 | -4/+9 |
| | | | | | | | unused wires, fixes #981 Signed-off-by: Clifford Wolf <clifford@clifford.at> | ||||
| * | Add handling of init attributes in "opt_expr -undriven" | Clifford Wolf | 2019-04-30 | 1 | -2/+41 |
| | | | | | Signed-off-by: Clifford Wolf <clifford@clifford.at> | ||||
| * | Add log_debug() framework | Clifford Wolf | 2019-04-22 | 1 | -34/+45 |
| | | | | | Signed-off-by: Clifford Wolf <clifford@clifford.at> | ||||
| * | Improve handling of and-with-1 and or-with-0 in opt_expr, fixes #327 | Clifford Wolf | 2019-03-14 | 1 | -0/+7 |
| | | | | | Signed-off-by: Clifford Wolf <clifford@clifford.at> | ||||
| * | Merge pull request #770 from whitequark/opt_expr_cmp | Clifford Wolf | 2019-01-02 | 1 | -97/+134 |
| |\ | | | | | opt_expr: refactor and improve simplification of comparisons | ||||
| | * | opt_expr: improve simplification of comparisons with large constants. | whitequark | 2019-01-02 | 1 | -70/+47 |
| | | | | | | | | | | | | | | | | | | | | | | | | | The idea behind this simplification is that a N-bit signal X being compared with an M-bit constant where M>N and the constant has Nth or higher bit set, it either always succeeds or always fails. However, the existing implementation only worked with one-hot signals for some reason. It also printed incorrect messages. This commit adjusts the simplification to have as much power as possible, and fixes other bugs. | ||||
| | * | opt_expr: refactor simplification of unsigned X<onehot and X>=onehot. NFCI. | whitequark | 2019-01-02 | 1 | -31/+37 |
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| | * | opt_expr: refactor simplification of signed X>=0 and X<0. NFCI. | whitequark | 2019-01-02 | 1 | -24/+26 |
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| | * | opt_expr: simplify any unsigned comparisons with all-0 and all-1. | whitequark | 2019-01-02 | 1 | -17/+69 |
| | | | | | | | | | | | | | Before this commit, only unsigned comparisons with all-0 would be simplified. This commit also makes the code handling such comparisons to be more rigorous and not abort on unexpected input. | ||||
| * | | Fix typographical and grammatical errors and inconsistencies. | whitequark | 2019-01-02 | 1 | -1/+1 |
| |/ | | | | | | | | | | | | The initial list of hits was generated with the codespell command below, and each hit was evaluated and fixed manually while taking context into consideration. DIRS="kernel/ frontends/ backends/ passes/ techlibs/" DIRS="${DIRS} libs/ezsat/ libs/subcircuit" codespell $DIRS -S *.o -L upto,iff,thru,synopsys,uint More hits were found by looking through comments and strings manually. | ||||
| * | Bugfix in opt_expr handling of a<0 and a>=0 | Clifford Wolf | 2018-12-06 | 1 | -1/+1 |
| | | | | | Signed-off-by: Clifford Wolf <clifford@clifford.at> | ||||
| * | 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 |
| | | | | | operators | ||||
| * | 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) | ||||
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index : iCE40/yosys | |
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