[Git][ghc/ghc][wip/t23702] Add -finfo-table-map-with-fallback -finfo-table-map-with-stack

[Finley McIlwaine (@FinleyMcIlwaine)]

Finley McIlwaine pushed to branch wip/t23702 at Glasgow Haskell Compiler / GHC


Commits:
8248bef4 by Finley McIlwaine at 2023-07-22T11:53:11-06:00
Add -finfo-table-map-with-fallback -finfo-table-map-with-stack

The -fno-info-table-map-with-stack flag omits STACK info tables from the info
table map, and the -fno-info-table-map-with-fallback flag omits info tables
with defaulted source locations from the map. In a test on the Agda codebase
the build results were about 7% smaller when both of those types of tables
were omitted.

Adds a test that verifies that passing each combination of these flags
results in the correct output for -dipe-stats.

This commit also refactors a lot of the logic around extracting info tables
from the Cmm results and building the info table map.

This commit also fixes some issues in the users guide rst source to fix
warnings that were noticed while debugging the documentation for these flags.

Fixes #23702

- - - - -


14 changed files:

- compiler/GHC/Cmm.hs
- compiler/GHC/Driver/Config/StgToCmm.hs
- compiler/GHC/Driver/Flags.hs
- compiler/GHC/Driver/GenerateCgIPEStub.hs
- compiler/GHC/Driver/Session.hs
- compiler/GHC/Runtime/Heap/Layout.hs
- compiler/GHC/StgToCmm/Config.hs
- compiler/GHC/StgToCmm/Prof.hs
- compiler/GHC/StgToCmm/Utils.hs
- docs/users_guide/9.8.1-notes.rst
- docs/users_guide/debug-info.rst
- docs/users_guide/debugging.rst
- docs/users_guide/exts/implicit_parameters.rst
- docs/users_guide/phases.rst


The diff was not included because it is too large.


View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/8248bef45cafe5dfdb9072cde3a459f1f1d03d8f

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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/8248bef45cafe5dfdb9072cde3a459f1f1d03d8f
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