From 92c0afbf592e71dae3c80cec09b1596df50ff8a9 Mon Sep 17 00:00:00 2001
From: Ben Gamari <ben@smart-cactus.org>
Date: Wed, 11 Nov 2020 14:11:43 -0500
Subject: [PATCH] hadrian: Dump STG when ticky is enabled
This changes the "ticky" modifier to enable dumping of final STG as this
is generally needed to make sense of the ticky profiles.
---
hadrian/src/Flavour.hs | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/hadrian/src/Flavour.hs b/hadrian/src/Flavour.hs
index a75976f73a22..364261259ffd 100644
--- a/hadrian/src/Flavour.hs
+++ b/hadrian/src/Flavour.hs
@@ -96,7 +96,13 @@ enableTickyGhc =
[ builder (Ghc CompileHs) ? ticky
, builder (Ghc LinkHs) ? ticky
]
- ticky = arg "-ticky" <> arg "-ticky-allocd"
+ ticky = mconcat
+ [ arg "-ticky"
+ , arg "-ticky-allocd"
+ -- You generally need STG dumps to interpret ticky profiles
+ , arg "-ddump-to-file"
+ , arg "-ddump-stg-final"
+ ]
-- | Transform the input 'Flavour' so as to build with
-- @-split-sections@ whenever appropriate. You can
--
GitLab