Eddie Hung
713337255e
Revert "Add "synth -keepdc" option"
2019-07-09 10:14:23 -07:00
Clifford Wolf
e95ce1f7af
Merge pull request #1168 from whitequark/bugpoint-processes
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Add support for processes in bugpoint
2019-07-09 16:59:43 +02:00
Clifford Wolf
a0787c12f0
Merge pull request #1169 from whitequark/more-proc-cleanups
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A new proc_prune pass
2019-07-09 16:59:18 +02:00
Clifford Wolf
38e942507e
Merge pull request #1163 from whitequark/more-case-attrs
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More support for case rule attributes
2019-07-09 16:57:16 +02:00
whitequark
44bcb7a187
proc_prune: promote assigns to module connections when legal.
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This can pave the way for further transformations by exposing
identities that were previously hidden in a process to any pass that
uses SigMap. Indeed, this commit removes some ad-hoc logic from
proc_init that appears to have been tailored to the output of
genrtlil in favor of using `SigMap.apply()`. (This removal is not
optional, as the ad-hoc logic cannot cope with the result of running
proc_prune; a similar issue was fixed in proc_arst.)
2019-07-09 09:30:58 +00:00
whitequark
5fe0ffe30f
proc_prune: new pass.
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The proc_prune pass is similar in nature to proc_rmdead pass: while
proc_rmdead removes branches that never become active because another
branch preempts it, proc_prune removes assignments that never become
active because another assignment preempts them.
Genrtlil contains logic similar to the proc_prune pass, but their
purpose is different: genrtlil has to prune assignments to adapt
the semantics of blocking assignments in HDLs (latest assignment
wins) to semantics of assignments in RTLIL processes (assignment in
the most specific case wins). On the other hand proc_prune is
a general purpose RTLIL simplification that benefits all frontends,
even those not using the Yosys AST library.
The proc_prune pass is added to the proc script after proc_rmdead,
since it gives better results with fewer branches.
2019-07-09 09:30:58 +00:00
whitequark
f2fb958d44
bugpoint: add -assigns and -updates options.
2019-07-09 09:27:43 +00:00
whitequark
f7a14a5678
proc_clean: add -quiet option.
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This is useful for other passes that call it often, like bugpoint.
2019-07-09 09:27:43 +00:00
Eddie Hung
37b58f4324
Clarify 'wreduce -keepdc' doc
2019-07-08 19:15:07 -07:00
Eddie Hung
b5072256f2
Update muxcover doc as per @ZirconiumX
2019-07-08 12:50:59 -07:00
Eddie Hung
3681162c8d
atoi -> stoi
2019-07-08 11:00:06 -07:00
Eddie Hung
a34c5612e7
Add muxcover -mux2=cost option
2019-07-08 10:59:12 -07:00
whitequark
48655dfb8b
proc_mux: consider \src attribute on CaseRule.
2019-07-08 13:18:18 +00:00
David Shah
d45936fe5f
memory_dff: Fix checking of feedback mux input when more than one mux
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Signed-off-by: David Shah <dave@ds0.me>
2019-07-02 13:35:50 +01:00
Gabriel L. Somlo
8cb3655ecd
Make abc9 pass aware of optional ABCEXTERNAL override
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Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
2019-06-28 14:56:16 -04:00
Eddie Hung
4a2a93aa06
Fix spacing
2019-06-28 11:10:36 -07:00
Eddie Hung
da5f830395
Merge pull request #1098 from YosysHQ/xaig
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"abc9" pass for timing-aware techmapping (experimental, FPGA only, no FFs)
2019-06-28 10:59:03 -07:00
Clifford Wolf
1c7ce251f3
Merge pull request #1046 from bogdanvuk/master
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Optimizing DFFs whose initial value prevents their value from changing
2019-06-28 08:30:18 +02:00
Eddie Hung
a625854ac5
Do not use Module::remove() iterator version
2019-06-27 15:29:20 -07:00
Eddie Hung
137c91d9a9
Remove &retime when abc9 -fast
2019-06-27 15:17:39 -07:00
Eddie Hung
6bf73e3546
Cleanup abc9.cc
2019-06-27 15:15:56 -07:00
Bogdan Vukobratovic
3225bfb984
Add help for "-sat" option inside opt_rmdff. "opt" can pass "-sat" too
2019-06-27 22:06:23 +02:00
Bogdan Vukobratovic
35fa7b3057
Fix memory leak when one of multiple DFF cells is removed in opt_rmdff
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When there are multiple DFFs and one of them is removed, its reference lingers
inside bit2driver dict. While invoking handle_dff() function for other DFFs,
this broken reference is used isnside sat_import_cell() function.
2019-06-27 22:02:12 +02:00
Eddie Hung
440f173aef
Merge remote-tracking branch 'origin/master' into xaig
2019-06-27 11:54:34 -07:00
Eddie Hung
6c210e5813
Merge pull request #1143 from YosysHQ/clifford/fix1135
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Add "pmux2shiftx -norange"
2019-06-27 11:48:48 -07:00
Eddie Hung
6c256b8cda
Merge origin/master
2019-06-27 11:20:15 -07:00
Bogdan Vukobratovic
0f32cb4e0a
Merge remote-tracking branch 'upstream/master'
2019-06-27 12:11:47 +02:00
Clifford Wolf
7c14678ec0
Add "pmux2shiftx -norange", fixes #1135
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-06-27 10:59:12 +02:00
Clifford Wolf
69d810e4a8
Fix handling of partial covers in muxcover, fixes #1132
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-06-27 09:42:58 +02:00
Eddie Hung
c226af3f56
Fix spacing
2019-06-26 20:03:34 -07:00
Eddie Hung
26efd6f0a9
Support more than one port in the abc_scc_break attr
2019-06-26 19:57:54 -07:00
Clifford Wolf
0b7d648c6a
Improve opt_clean handling of unused public wires
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-06-26 17:54:17 +02:00
Clifford Wolf
8e9ef891fe
Do not clean up buffer cells with "keep" attribute, closes #1128
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-06-26 11:01:03 +02:00
Eddie Hung
5db96b8aec
Missing muxpack.o in Makefile
2019-06-25 10:38:42 -07:00
Eddie Hung
6f36ec8ecf
Merge remote-tracking branch 'origin/master' into xaig
2019-06-25 09:33:11 -07:00
Clifford Wolf
add2d415fc
Merge pull request #1130 from YosysHQ/eddie/fix710
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memory_dff: walk through more than one mux for computing read enable
2019-06-25 17:34:44 +02:00
Eddie Hung
42720ef6fe
Fix spacing
2019-06-25 08:33:17 -07:00
Eddie Hung
c4e4902098
Move only one consumer check outside of while loop
2019-06-25 08:29:55 -07:00
Eddie Hung
d2fed0a7f1
nullptr check
2019-06-25 06:06:32 -07:00
Eddie Hung
a19226c174
Fix for abc_scc_break is bus
2019-06-24 22:16:56 -07:00
Eddie Hung
5605002d8a
More meaningful error message
2019-06-24 22:12:55 -07:00
Eddie Hung
babadf5938
Do not use log_id as it strips \\, also fix scc for |wire| > 1
2019-06-24 22:04:22 -07:00
Eddie Hung
49a762ba46
Fix abc9's scc breaker, also break on abc_scc_break attr
2019-06-24 21:53:18 -07:00
Eddie Hung
b7deaceadd
Walk through as many muxes as exist for rd_en
2019-06-24 18:33:06 -07:00
Eddie Hung
4ddc0354c1
Merge remote-tracking branch 'origin/master' into eddie/muxpack
2019-06-22 14:40:55 -07:00
Eddie Hung
1abe93e48d
Merge remote-tracking branch 'origin/master' into xaig
2019-06-21 17:43:29 -07:00
Eddie Hung
ad296d77ab
Do not rename non LUT cells in abc9
2019-06-21 17:18:04 -07:00
Eddie Hung
e01bab6c64
Merge pull request #1108 from YosysHQ/clifford/fix1091
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Add support for partial matches to muxcover
2019-06-21 17:13:41 -07:00
Eddie Hung
545cfbbe0d
Cope with $reduce_or common in case
2019-06-21 12:31:14 -07:00
Eddie Hung
15535112b7
Fix spacing
2019-06-21 11:52:51 -07:00
