[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 7 commits: -fprof-late: Only insert cost centres on functions/non-workfree cafs.

[Marge Bot (@marge-bot)]

Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC


Commits:
9b4129a5 by Andreas Klebinger at 2024-05-08T13:24:20-04:00
-fprof-late: Only insert cost centres on functions/non-workfree cafs.

They are usually useless and doing so for data values comes with
a large compile time/code size overhead.

Fixes #24103

- - - - -
259b63d3 by Sebastian Graf at 2024-05-08T13:24:57-04:00
Simplifier: Preserve OccInfo on DataAlt fields when case binder is dead (#24770)

See the adjusted `Note [DataAlt occ info]`.
This change also has a positive repercussion on
`Note [Combine case alts: awkward corner]`.

Fixes #24770.

We now try not to call `dataConRepStrictness` in `adjustFieldsIdInfo` when all
fields are lazy anyway, leading to a 2% ghc/alloc decrease in T9675.

Metric Decrease:
    T9675

- - - - -
31b28cdb by Sebastian Graf at 2024-05-08T13:24:57-04:00
Kill seqRule, discard dead seq# in Prep (#24334)

Discarding seq#s in Core land via `seqRule` was problematic; see #24334.
So instead we discard certain dead, discardable seq#s in Prep now.
See the updated `Note [seq# magic]`.

This fixes the symptoms of #24334.

- - - - -
a94ca7db by Rodrigo Mesquita at 2024-05-08T13:56:13-04:00
Document NcgImpl methods

Fixes #19914

- - - - -
c0b61888 by Zejun Wu at 2024-05-08T13:56:17-04:00
Make renamer to be more flexible with parens in the LHS of the rules

We used to reject LHS like `(f a) b` in RULES and requires it to be written as
`f a b`. It will be handy to allow both as the expression may be more
readable with extra parens in some cases when infix operator is involved.
Espceially when TemplateHaskell is used, extra parens may be added out of
user's control and result in "valid" rules being rejected and there
are not always ways to workaround it.

Fixes #24621

- - - - -
bf203e4d by Rodrigo Mesquita at 2024-05-08T13:56:17-04:00
Rename pre-processor invocation args

Small clean up. Uses proper names for the various groups of arguments
that make up the pre-processor invocation.

- - - - -
11a23306 by Cheng Shao at 2024-05-08T13:56:18-04:00
ghc-heap: fix typo in ghc-heap cbits

- - - - -


30 changed files:

- compiler/GHC/Cmm.hs
- compiler/GHC/CmmToAsm/AArch64/RegInfo.hs
- compiler/GHC/CmmToAsm/Monad.hs
- compiler/GHC/CmmToAsm/X86/Instr.hs
- compiler/GHC/Core/LateCC.hs
- compiler/GHC/Core/LateCC/TopLevelBinds.hs
- compiler/GHC/Core/LateCC/Types.hs
- compiler/GHC/Core/Opt/CSE.hs
- compiler/GHC/Core/Opt/ConstantFold.hs
- compiler/GHC/Core/Opt/OccurAnal.hs
- compiler/GHC/Core/Opt/SetLevels.hs
- compiler/GHC/Core/Opt/Simplify/Iteration.hs
- compiler/GHC/Core/Opt/SpecConstr.hs
- compiler/GHC/Core/Type.hs
- compiler/GHC/CoreToStg/Prep.hs
- compiler/GHC/Driver/Main.hs
- compiler/GHC/Rename/Module.hs
- compiler/GHC/SysTools/Tasks.hs
- compiler/GHC/Types/Id/Make.hs
- compiler/GHC/Types/RepType.hs
- docs/users_guide/9.12.1-notes.rst
- docs/users_guide/profiling.rst
- libraries/ghc-heap/cbits/Stack.cmm
- testsuite/tests/codeGen/should_compile/T24264.hs
- + testsuite/tests/core-to-stg/T24334.hs
- + testsuite/tests/core-to-stg/T24334.stdout
- testsuite/tests/core-to-stg/all.T
- + testsuite/tests/rename/should_compile/T24621_normal.hs
- + testsuite/tests/rename/should_compile/T24621_th.hs
- testsuite/tests/rename/should_compile/all.T


The diff was not included because it is too large.


View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/413985ad937ec77a40c7a59ae12eb9ff6f6c98df...11a233063497a42a981c4692963937b0952e0b25

-- 
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/413985ad937ec77a40c7a59ae12eb9ff6f6c98df...11a233063497a42a981c4692963937b0952e0b25
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