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| * | | | flatten: topologically sort modules.whitequark2020-06-041-55/+47
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| * | | | flatten: simplify.whitequark2020-06-041-43/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `flatten` cannot derive modules in most cases because that would just yield processes, and it does not support `-autoproc`; in practice `flatten` has to be preceded by a call to `hierarchy`, which makes deriving unnecessary.
| * | | | flatten: simplify. NFC.whitequark2020-06-041-7/+3
| | | | | | | | | | | | | | | | | | | | Remove redundant sigmaps.
| * | | | flatten: simplify.whitequark2020-06-041-35/+0
| | | | | | | | | | | | | | | | | | | | | | | | | Flattening does not benefit from topologically sorting cells within a module when processing them.
| * | | | flatten: simplify. NFC.whitequark2020-06-041-11/+4
| | | | | | | | | | | | | | | | | | | | | | | | | Flatten is non-recursive and doesn't need to keep track of handled cells.
| * | | | flatten: simplify. NFC.whitequark2020-06-041-6/+4
| | | | | | | | | | | | | | | | | | | | Flattening always does "non-recursive" mapping.
| * | | | flatten: simplify. NFC.whitequark2020-06-041-73/+39
| | | | | | | | | | | | | | | | | | | | The `celltypeMap` always maps `x` to `{x}`.
| * | | | flatten: simplify. NFC.whitequark2020-06-041-8/+8
| | | | | | | | | | | | | | | | | | | | The `design` and `map` designs are always the same when flattening.
| * | | | RTLIL: factor out RTLIL::Module::addMemory. NFC.whitequark2020-06-044-14/+16
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| * | | | flatten: rename techmap-related stuff. NFC.whitequark2020-06-041-16/+16
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| * | | | techmap, flatten: remove dead options.whitequark2020-06-042-928/+212
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After splitting the passes, some options can never be activated, and most conditions involving them become dead. Remove them, and also all of the newly dead code.
| * | | | flatten: split from techmap.whitequark2020-06-033-93/+1149
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Although the two passes started out very similar, they diverged over time and now have little in common. Moreover, `techmap` is extremely complex while `flatten` does not have to be, and this complexity interferes with improving `flatten`.
* | | | | Merge pull request #2117 from PeterCrozier/struct_arrayclairexen2020-06-083-17/+158
|\ \ \ \ \ | | | | | | | | | | | | Support packed arrays in struct/union.
| * | | | | Support packed arrays in struct/union.Peter Crozier2020-06-073-17/+158
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* | | | | | Merge pull request #2119 from YosysHQ/mwk/fix-fsm-idstringclairexen2020-06-081-1/+1
|\ \ \ \ \ \ | |_|_|_|/ / |/| | | | | fsm_extract: avoid calling log_signal to determine wire name
| * | | | | fsm_extract: avoid calling log_signal to determine wire nameMarcelina Kościelnicka2020-06-081-1/+1
|/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | log_signal can result in a string with spaces (when bit selection is involved), which breaks the rule of IdString not containing whitespace. Instead, remove the sigspec from the name entirely — given that the resulting wire will have no users, it will be removed later anyway, so its name doesn't really matter. Fixes #2118
* | | | | Merge pull request #2116 from whitequark/cxxrtl-vcdwhitequark2020-06-077-3/+419
|\ \ \ \ \ | |/ / / / |/| | | | cxxrtl: add a VCD writer using debug information
| * | | | cxxrtl: rename cxxrtl.cc→cxxrtl_backend.cc.whitequark2020-06-072-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | To avoid confusion with the C++ source files that are a part of the simulation itself and not a part of Yosys build.
| * | | | cxxrtl: add a C API for writing VCD dumps.whitequark2020-06-075-2/+204
| | | | | | | | | | | | | | | | | | | | This C API is fully featured.
| * | | | cxxrtl: only write VCD values that were actually updated.whitequark2020-06-071-10/+30
| | | | | | | | | | | | | | | | | | | | | | | | | On a representative design (Minerva SoC) this reduces VCD file size by ~20× and runtime by ~3×.
| * | | | cxxrtl: add a VCD writer using debug information.whitequark2020-06-071-0/+194
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* | | | Merge pull request #2115 from whitequark/cxxrtl-introspectionwhitequark2020-06-064-5/+396
|\ \ \ \ | | | | | | | | | | cxxrtl: add debug information to the C++ API, and add introspection via a new C API
| * | | | cxxrtl: add a C API for driving and introspecting designs.whitequark2020-06-064-29/+291
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Compared to the C++ API, the C API currently has two limitations: 1. Memories cannot be updated in a race-free way. 2. Black boxes cannot be implemented in C.
| * | | | cxxrtl: generate debug information for non-localized public wires.whitequark2020-06-062-2/+131
|/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Debug information describes values, wires, and memories with a simple C-compatible layout. It can be emitted on demand into a map, which has no runtime cost when it is unused, and allows late bound designs. The `hdlname` attribute is used as the lookup key such that original names, as emitted by the frontend, can be used for debugging and introspection.
* | | | Merge pull request #2110 from BracketMaster/masterwhitequark2020-06-061-1/+1
|\ \ \ \ | | | | | | | | | | MacOS has even stricter stack limits in catalina.
| * | | | more reasonable numbers for memoryYehowshua Immanuel2020-06-041-1/+1
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| * | | | MacOS has even stricter stack limits in catalina.Yehowshua Immanuel2020-06-041-1/+1
| | | | | | | | | | | | | | | Invoking sby in macOS Catalina fails because of bizarre stack limits in Catalina.
* | | | | Merge pull request #2113 from whitequark/cxxrtl-fix-sshrwhitequark2020-06-051-1/+1
|\ \ \ \ \ | | | | | | | | | | | | cxxrtl: fix implementation of $sshr cell
| * | | | | cxxrtl: fix implementation of $sshr cell.whitequark2020-06-051-1/+1
| | |/ / / | |/| | | | | | | | | | | | | Fixes #2111.
* | | | | Merge pull request #2109 from nakengelhardt/btor_internal_namesN. Engelhardt2020-06-051-5/+5
|\ \ \ \ \ | |_|_|_|/ |/| | | | btor backend: make not printing internal names default
| * | | | btor backend: make not printing internal names defaultN. Engelhardt2020-06-041-5/+5
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* | | | | Add missing .gitignore fileClaire Wolf2020-06-041-0/+2
| |_|/ / |/| | | | | | | | | | | Signed-off-by: Claire Wolf <claire@symbioticeda.com>
* | | | Merge pull request #2041 from PeterCrozier/structclairexen2020-06-0410-204/+690
|\ \ \ \ | | | | | | | | | | Implementation of SV structs.
| * \ \ \ Merge branch 'master' into structPeter Crozier2020-06-03154-2453/+4094
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| * | | | | Allow structs within structs.Peter Crozier2020-05-123-7/+38
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| * | | | | Generalise structs and add support for packed unions.Peter Crozier2020-05-128-59/+209
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| * | | | | Implement SV structs.Peter Crozier2020-05-089-205/+510
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* | | | | | Merge pull request #2099 from Xiretza/manual-include-pathclairexen2020-06-041-1/+4
|\ \ \ \ \ \ | | | | | | | | | | | | | | Use in-tree include directory in manual build
| * | | | | | Use in-tree include directory in manual buildXiretza2020-05-301-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is basically the same issue as in tests/various/plugin.sh, which uses yosys-config to compile a plugin. `yosys-config --cxxflags` points to `$PREFIX/share/` (/usr/local/share by default), which might not exist yet or might be out of date. Building directly from the headers in ./share/ avoids this.
* | | | | | | Add codeowners file (#2098)N. Engelhardt2020-06-041-0/+37
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* | | | | | | Merge pull request #2077 from YosysHQ/eddie/abc9_dff_improveEddie Hung2020-06-046-55/+143
|\ \ \ \ \ \ \ | |_|_|_|/ / / |/| | | | | | abc9: -dff improvements
| * | | | | | abc9_ops: fix commentEddie Hung2020-05-301-1/+1
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| * | | | | | abc9_ops: update messaging (credit to @Xiretza for spotting)Eddie Hung2020-05-302-8/+8
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| * | | | | | abc9_ops: optimise to not derive unless attribute existsEddie Hung2020-05-291-4/+8
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| * | | | | | abc9_ops: -reintegrate use SigMap to remove (* init *) from $_DFF_[NP]_Eddie Hung2020-05-293-7/+25
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| * | | | | | tests: add test for abc9 -dff removing a redundant flop entirelyEddie Hung2020-05-251-0/+15
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| * | | | | | abc9_ops: -reintegrate to preserve flop namesEddie Hung2020-05-251-5/+25
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| * | | | | | tests: add testcase for abc9 -dff preserving flop namesEddie Hung2020-05-251-0/+34
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| * | | | | | aiger: cleanupEddie Hung2020-05-251-2/+5
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| * | | | | | xaiger: cleanupEddie Hung2020-05-251-28/+22
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