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| author | Ben Gamari <ben@smart-cactus.org> | 2017-11-15 17:28:48 -0500 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2017-11-16 15:10:21 -0500 |
| commit | 2da7813b771edcb3efb1b067b986d10f5de4beaf (patch) | |
| tree | b4887225058f7418dd676fc2a5706730c2e551f4 /docs/users_guide/debugging.rst | |
| parent | 2f4638735ad1526d6502a4706bffafffb93e24da (diff) | |
| download | haskell-2da7813b771edcb3efb1b067b986d10f5de4beaf.tar.gz | |
Document -ddump-timings
Diffstat (limited to 'docs/users_guide/debugging.rst')
| -rw-r--r-- | docs/users_guide/debugging.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/docs/users_guide/debugging.rst b/docs/users_guide/debugging.rst index 0d3872e32f..d0f479cbb1 100644 --- a/docs/users_guide/debugging.rst +++ b/docs/users_guide/debugging.rst @@ -74,6 +74,11 @@ Dumping out compiler intermediate structures aren't). This flag makes debugging output appear in the more verbose debug style. +.. ghc-flag:: -ddump-timings + :shortdesc: Dump per-pass timing and allocation statistics + :type: dynamic + + Show allocation and runtime statistics for various stages of compilation. GHC is a large program consisting of a number of stages. You can tell GHC to dump information from various stages of compilation using the ``-ddump-⟨pass⟩`` |