circt

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[ESI] Extend instead of override CMAKE_CXX_FLAGS

5

mortbopet

[hw] Add hw.donttouch operation

9

Add a `hw.donttouch` operation which is an inner symbol user that indicates that the inner symbol should not be optimized, removed, or otherwise touched by the compiler. This is added...

seldridge

Support for Adding Parameter Annotations to Generated Modules (e.g., as Comments)

2

### Context I'm using PyCDE to generate parameterized modules and test them using a handwritten Verilator testbench. To simplify the testbench logic, I instantiate different versions of the module under...

farukyld

Support linking multiple MLIR files in firtool

9

We propose a mechanism for linking multiple MLIR files in firtool. Specifically, this involves combining multiple circuits into a single one. All modules instantiated within another module (i.e., all `firrtl.instance`...

unlsycn

[ImportVerilog] Bump `slang`

23

Some groundwork towards using a more up to date `slang` verison. ### TODO - [ ] Proper error message on unsupported compilers. - [ ] Don't match on OS specifics:...

hovind

```mlir firrtl.circuit "A" { firrtl.module @A(in %clock: !firrtl.clock, in %u: !firrtl.uint, in %cond: !firrtl.uint, out %a: !firrtl.uint) attributes {convention = #firrtl} { %c0_ui2 = firrtl.constant 0 : !firrtl.uint %cat_1 =...

uenoku

[Scheduling] Problem understanding `incomingDelay` and `outgoingDelay` in a simple example.

2

I'm using the simplex scheduler with a simple example. But I think I misunderstood what the `incomingDelay` and `outgoingDelay` are. I understood that the operation must start at least `incomingDelay`...

leothaud

See the discussion here: https://discourse.llvm.org/t/rfc-a-new-one-shot-dialect-conversion-driver/79083/46 I followed the steps to set the flag in MLIR to disallow rollback, and CFToHandshake fails. ``` /scratch/verif/mikeu/circt/build/bin/circt-opt -lower-cf-to-handshake /scratch/verif/mikeu/circt/test/Conversion/CFToHandshake/invalid.mlir -split-input-file -verify-diagnostics # RUN: at...

mikeurbach

[CMake] Allow Python discovery from virtual environment

4

Currently the `find_package(Python3)` call binds with the system Python interpreter which does not necessarily have `psutil` needed to run integration tests (using LLVM LIT) Installing `psutil` in the system Python...

hamidelmaazouz

``` // -----// IR Dump After AssignOutputDirs (firrtl-assign-output-dirs) //----- // firrtl.circuit "test" { firrtl.module @test(in %clock: !firrtl.clock, in %reset: !firrtl.uint, out %io_out: !firrtl.uint) { %c1_ui6 = firrtl.constant 1 : !firrtl.uint...

uenoku