[all-commits] [llvm/llvm-project] 351326: [mlir] Add op printing flag to skip regions (#77726)

[Jakub Kuderski via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3513267770802b79fe5c020cf651942678b1e951
      https://github.com/llvm/llvm-project/commit/3513267770802b79fe5c020cf651942678b1e951
  Author: Jakub Kuderski <jakub at nod-labs.com>
  Date:   2024-01-11 (Thu, 11 Jan 2024)

  Changed paths:
    M mlir/lib/IR/AsmPrinter.cpp
    A mlir/test/IR/print-skip-regions.mlir

  Log Message:
  -----------
  [mlir] Add op printing flag to skip regions (#77726)

The new flag, `--mlir-print-skip-regions`, sets the op printing option
that disables region printing. This results in the usual
`--mlir-print-ir-*` debug options printing only the names of the
executed passes and the signatures of the ops.

Example:
```mlir
// -----// IR Dump Before CSE (cse) //----- //
func.func @bar(%arg0: f32, %arg1: f32) -> f32 {...}

// -----// IR Dump Before Canonicalizer (canonicalize) //----- //
func.func @bar(%arg0: f32, %arg1: f32) -> f32 {...}
```

The main use-case is to be triage compilation issues (crashes, slowness)
on very deep pass pipelines and with very large IR files, where printing
IR is prohibitively slow otherwise.