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18 Commits

Author SHA1 Message Date
Charlotte ce245b5105 cxxrtl_backend: respect sync `$print` priority 
We add a new flow graph node type, PRINT_SYNC, as they don't get handled
with regular CELL_EVALs.  We could probably move this grouping out of
the dump method.
 2023-08-11 04:46:52 +02:00
Charlotte 04582f2fb7 verilog_backend: emit sync `$print` cells with same triggers together 
Sort by PRIORITY, ensuring output order.
 2023-08-11 04:46:52 +02:00
Charlotte 4ffdee65e0 cxxrtl: store comb $print cell last EN/ARGS in module 
statics were obviously wrong -- may be multiple instantiations of any
given module.  Extend test to cover this.
 2023-08-11 04:46:52 +02:00
Charlotte 843ad9331b cxxrtl: WIP: adjust comb display cells to only fire on change 
Naming and use of statics to be possibly revised.
 2023-08-11 04:46:52 +02:00
Charlotte eb0fb4d662 tests: -std=c++11 not optional 2023-08-11 04:46:52 +02:00
Charlotte 992a728ec7 tests: CXX may be e.g. gcc, so use CC and link stdc++ explicitly 2023-08-11 04:46:52 +02:00
Charlotte f9b149fa7b cxxrtl: add "-print-output" option, test in fmt 2023-08-11 04:46:52 +02:00
Charlotte a1de898fcc fmt: merge fuzzers since we don't rely on BigInteger logic 
This is per fmt's (effective) use, as it turns out, so we're not losing
any fidelity in the comparison.
 2023-08-11 04:46:52 +02:00
Charlotte 3571bf2c2d fmt: fuzz, remove some unnecessary busywork 
Removing some signed checks and logic where we've already guaranteed the
values to be positive.  Indeed, in these cases, if a negative value got
through (per my realisation in the signed fuzz harness), it would cause
an infinite loop due to flooring division.
 2023-08-11 04:46:52 +02:00
Charlotte 2ae551c0af fmt: fuzz, fix (remove extraneous + incorrect fill) 
"blk + chunks" is often an overrun, plus the fill is unnecessary; we
throw blk away immediately.
 2023-08-11 04:46:52 +02:00
Charlotte 9f9561379b fmt: format %t consistently at initial 2023-08-11 04:46:52 +02:00
Charlotte 75b44f21d1 fmt: rudimentary %m support (= %l) 2023-08-11 04:46:52 +02:00
Charlotte c382d7d3ac fmt: %t/$time support 2023-08-11 04:46:52 +02:00
Charlotte b0f69f2cd5 tests: test cxxrtl against iverilog (and uncover bug!) 2023-08-11 04:46:52 +02:00
Charlotte 51d9b73107 fmt: tests completing again 
We need to invoke "read_verilog" manually, since the default action on
input files is to defer processing.  Under such conditions, we never
simplify the AST, and initial $prints never execute.
 2023-08-11 04:46:52 +02:00
Charlotte 1eff84cb92 fmt: ensure test exits on fail 
shebang not honoured when directly called with "bash run-test.sh".
 2023-08-11 04:46:52 +02:00
whitequark c285880684 fmt: add tests for Verilog round trip of format expressions. 2023-08-11 04:46:52 +02:00
whitequark 67052f62ec fmt: add tests for Yosys evaluation of format expressions. 2023-08-11 04:46:52 +02:00