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<h3 style="margin-top: 20px; margin-bottom: 10px;">
Finley McIlwaine pushed to branch wip/t24032 at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4 style="margin-top: 10px; margin-bottom: 10px;">
Commits:
</h4>
<ul>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d3874407df4223a5e14a43571f4cc344349a537d">d3874407</a></strong>
<div>
<span> by Torsten Schmits </span> <i> at 2023-09-30T16:08:10-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Fix several mistakes around free variables in iface breakpoints
Fixes #23612 , #23607, #23998 and #23666.
MR: !11026
The fingerprinting logic in `Iface.Recomp` failed lookups when processing decls containing breakpoints for two reasons:
* IfaceBreakpoint created binders for free variables instead of expressions
* When collecting free names for the dependency analysis for fingerprinting, breakpoint FVs were skipped
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ef5342cd4b6d60d719ecc552245d8c59198f701d">ef5342cd</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2023-09-30T16:08:48-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Refactor to combine HsLam and HsLamCase
This MR is pure refactoring (#23916):
* Combine `HsLam` and `HsLamCase`
* Combine `HsCmdLam` and `HsCmdLamCase`
This just arranges to treat uniformly
\x -> e
\case pi -> ei
\cases pis -> ie
In the exising code base the first is treated differently
to the latter two.
No change in behaviour.
More specifics:
* Combine `HsLam` and `HsLamCase` (constructors of `Language.Haskell.Syntax.Expr.HsExpr`) into one data construtor covering
* Lambda
* `\case`
* `\cases`
* The new `HsLam` has an argument of type `HsLamVariant` to distinguish the three cases.
* Similarly, combine `HsCmdLam` and `HsCmdLamCase` (constructors of `Language.Haskell.Syntax.Expr.HsCmd` ) into one.
* Similarly, combine `mkHsLamPV` and `mkHsLamCasePV` (methods of class `DisambECP`) into one. (Thank you Alan Zimmerman.)
* Similarly, combine `LambdaExpr` and `LamCaseAlt` (constructors of `Language.Haskell.Syntax.Expr.HsMatchContext`) into one: `LamAlt` with a `HsLamVariant` argument.
* Similarly, combine `KappaExpr` and `ArrowLamCaseAlt` (constructors of `Language.Haskell.Syntax.Expr.HsArrowMatchContext`) into one: `ArrowLamAlt` with a `HsLamVariant` argument.
* Similarly, combine `PsErrLambdaInPat` and `PsErrLambdaCaseInPat` (constructors of `GHC.Parser.Errors.Ppr.PsError`) into one.
* Similarly, combine `PsErrLambdaInPat` and `PsErrLambdaCaseInPat` (constructors of `GHC.Parser.Errors.Ppr.PsError`) into one.
* In the same `PsError` data type, combine `PsErrLambdaCmdInFunAppCmd` and `PsErrLambdaCaseCmdInFunAppCmd` into one.
* In the same `PsError` data tpye, combine `PsErrLambdaInFunAppExpr` and `PsErrLambdaCaseInFunAppExpr` into one.
p* Smilarly combine `ExpectedFunTyLam` and `ExpectedFunTyLamCase` (constructors of `GHC.Tc.Types.Origin.ExpectedFunTyOrigin`) into one.
Phew!
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b048bea095d48751e7c182f2837c4a31fcad8fd7">b048bea0</a></strong>
<div>
<span> by Andreas Klebinger </span> <i> at 2023-09-30T16:09:24-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Arm: Make ppr methods easier to use by not requiring NCGConfig
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2adc050857a9c1b992040fbfd55fbe65b2851b19">2adc0508</a></strong>
<div>
<span> by Andreas Klebinger </span> <i> at 2023-09-30T16:09:24-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>AArch64: Fix broken conditional jumps for offsets >= 1MB
Rewrite conditional jump instructions with offsets >= 1MB to use unconditional jumps
to avoid overflowing the immediate.
Fixes #23746
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1424f790bc937ae2b4387b1a2911469a62876a79">1424f790</a></strong>
<div>
<span> by Alan Zimmerman </span> <i> at 2023-09-30T16:10:00-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>EPA: Replace Monoid with NoAnn
We currently use the Monoid class as a constraint on Exact Print
Annotation functions, so we can use mempty. But this leads to
requiring Semigroup instances too, which do not always make sense.
Instead, introduce a class NoAnn, with a function noAnn analogous to
mempty.
Closes #20372
Updates haddock submodule
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c1a3ecde720b3bddc2c8616daaa06ee324e602ab">c1a3ecde</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-09-30T16:10:36-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>users-guide: Refactor handling of :base-ref: et al.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ed6d07e469af4108bbe1cb8590ed7d4d6d15cd8d">ed6d07e4</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-10-03T12:59:43-07:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Make specialiser monad a newtype around IO
* Use the new IO powers to generate uniques as well
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8404c2c3ec04a33d61bba83750e2e696ecd22c0f">8404c2c3</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-10-03T12:59:43-07:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Add -ddump-specialisations, -ddump-specialization
These flags will dump information about any specialisations generated as a
result of pragmas or the specialiser.
Resolves: #24032
</pre>
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<h4 style="margin-top: 10px; margin-bottom: 10px;">
30 changed files:
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<a href="#8dc7109003a77f8a82e987dc1de31466aa956174">
compiler/GHC/Builtin/Uniques.hs
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<a href="#10b61652f9817945bb54ccf8fc40f8a664ca3c30">
compiler/GHC/CmmToAsm.hs
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<a href="#b9a8759892098a78ba40db9b2ef9cbc3ddc91fe2">
compiler/GHC/CmmToAsm/AArch64.hs
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<li class="file-stats">
<a href="#6997a0cd37829d3d08db1c48185aaa3d7dfc3e6b">
compiler/GHC/CmmToAsm/AArch64/CodeGen.hs
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<li class="file-stats">
<a href="#f5f32d67938245e3d6d24e647d3ae359bbf88dce">
compiler/GHC/CmmToAsm/AArch64/Cond.hs
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<a href="#807babf5b215890881c92043bcd08486141a405c">
compiler/GHC/CmmToAsm/AArch64/Instr.hs
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<a href="#0c06b80d12937afa0db5ee9903e4d2be2f146d29">
compiler/GHC/CmmToAsm/AArch64/Ppr.hs
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<a href="#5986ebaacfa99d264abfd2f7ef19d99a64db720f">
compiler/GHC/CmmToAsm/BlockLayout.hs
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<a href="#ea29061dab1b843e0ea9294afc614998f3a8d08f">
compiler/GHC/CmmToAsm/Monad.hs
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<a href="#89f8a68c62e7b5e239f8d8d532820fc086d29140">
compiler/GHC/CmmToAsm/PPC/Instr.hs
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<a href="#3ccd75dc8d8cce566baf3b65d79e2e90ac60e21e">
compiler/GHC/CmmToAsm/X86.hs
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<a href="#b6a5ba32bafb8fbda933538b3007e755fef6f101">
compiler/GHC/Core/Opt/SpecConstr.hs
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compiler/GHC/Core/Opt/Specialise.hs
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compiler/GHC/Core/Subst.hs
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compiler/GHC/CoreToIface.hs
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compiler/GHC/Driver/Flags.hs
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compiler/GHC/Driver/Session.hs
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compiler/GHC/Hs/Expr.hs
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compiler/GHC/Hs/Syn/Type.hs
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compiler/GHC/Hs/Utils.hs
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compiler/GHC/HsToCore/Arrows.hs
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compiler/GHC/HsToCore/Binds.hs
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compiler/GHC/HsToCore/Expr.hs
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compiler/GHC/HsToCore/Pmc/Utils.hs
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compiler/GHC/HsToCore/Quote.hs
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<a href="#aa160d2e15ce4b9872864040e449a60d09ad648f">
compiler/GHC/HsToCore/Ticks.hs
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<a href="#649144a78135a23cabfc90dd83c4aabf448eb6ab">
compiler/GHC/Iface/Ext/Ast.hs
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<a href="#079d6b28856775716c78fdd4a4b35bb45a59002c">
compiler/GHC/Iface/Syntax.hs
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<a href="#06ff7bac58fd8cfe0c17b81963b03f4cce86a065">
compiler/GHC/IfaceToCore.hs
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<a href="#bf951467d4a9aa443cb109cb4c84a2891945649b">
compiler/GHC/Parser.y
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The diff was not included because it is too large.
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