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| author | Matthew Pickering <matthewtpickering@gmail.com> | 2021-11-25 17:03:08 +0000 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2022-03-02 01:14:59 -0500 |
| commit | 75caafaafca5a1941c276f95017c34f68da8d679 (patch) | |
| tree | 58113d937239965d60a3221c99a82b3739ebec58 /compiler/GHC/StgToCmm/Config.hs | |
| parent | 7aeb6d29313b23cd8d4da5d42cd9e740cca5c1df (diff) | |
| download | haskell-75caafaafca5a1941c276f95017c34f68da8d679.tar.gz | |
Ticky profiling improvements.
This adds a number of changes to ticky-ticky profiling.
When an executable is profiled with IPE profiling it's now possible to
associate id-related ticky counters to their source location.
This works by emitting the info table address as part of the counter
which can be looked up in the IPE table.
Add a `-ticky-ap-thunk` flag. This flag prevents the use of some standard thunks
which are precompiled into the RTS. This means reduced cache locality
and increased code size. But it allows better attribution of execution
cost to specific source locations instead of simple attributing it to
the standard thunk.
ticky-ticky now uses the `arg` field to emit additional information
about counters in json format. When ticky-ticky is used in combination
with the eventlog eventlog2html can be used to generate a html table
from the eventlog similar to the old text output for ticky-ticky.
Diffstat (limited to 'compiler/GHC/StgToCmm/Config.hs')
| -rw-r--r-- | compiler/GHC/StgToCmm/Config.hs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/GHC/StgToCmm/Config.hs b/compiler/GHC/StgToCmm/Config.hs index 623a7b8f0a..b3014fd302 100644 --- a/compiler/GHC/StgToCmm/Config.hs +++ b/compiler/GHC/StgToCmm/Config.hs @@ -61,6 +61,7 @@ data StgToCmmConfig = StgToCmmConfig , stgToCmmAllowExtendedAddSubInstrs :: !Bool -- ^ Allowed to generate AddWordC, SubWordC, Add2, etc. , stgToCmmAllowIntMul2Instr :: !Bool -- ^ Allowed to generate IntMul2 instruction , stgToCmmAllowFabsInstrs :: !Bool -- ^ Allowed to generate Fabs instructions + , stgToCmmTickyAP :: !Bool -- ^ Disable use of precomputed standard thunks. ------------------------------ SIMD flags ------------------------------------ -- Each of these flags checks vector compatibility with the backend requested -- during compilation. In essence, this means checking for @-fllvm@ which is |