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<h3 style="margin-top: 20px; margin-bottom: 10px;">
sheaf pushed to branch wip/ncg-simd at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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<h4 style="margin-top: 10px; margin-bottom: 10px;">
Commits:
</h4>
<ul>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e10aa6df5686939c684fe89edd1b236256978a97">e10aa6df</a></strong>
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<span> by sheaf </span> <i> at 2024-09-02T11:19:53+02:00 </i>
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<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 #25169 using Plan A from the ticket
We now compile certain low-level Cmm functions in the RTS multiple
times, with different levels of vector support. We then dispatch
at runtime in the RTS, based on what instructions are supported.
See Note [realArgRegsCover] in GHC.Cmm.CallConv.
Fixes #25169
-------------------------
Metric Increase:
T10421
T12425
T1969
T9198
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/528fc781f877d4febcb135dbdef7bfbfc9fa552a">528fc781</a></strong>
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<span> by sheaf </span> <i> at 2024-09-02T11:19:53+02:00 </i>
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<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 C calls with SIMD vectors
This commit fixes the code generation for C calls, to take into account
the calling convention.
This is particularly tricky on Windows, where all vectors are expected
to be passed by reference. See Note [The Windows X64 C calling convention]
in GHC.CmmToAsm.X86.CodeGen.
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/39341768c8711d650e446bf20811201197eb8a15">39341768</a></strong>
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<span> by sheaf </span> <i> at 2024-09-02T11:19:53+02:00 </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;'>LLVM: propagate GlobalRegUse information
This commit ensures we keep track of how any particular global register
is being used in the LLVM backend. This informs the LLVM type
annotations, and avoids type mismatches of the following form:
argument is not of expected type '<2 x double>'
call ccc <2 x double> (<2 x double>)
(<4 x i32> arg)
</pre>
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<h4 style="margin-top: 10px; margin-bottom: 10px;">
30 changed files:
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<a href="#2f6f8d6d05acc04b08fff94df4b3996c65b87892">
compiler/GHC/ByteCode/Asm.hs
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<li class="file-stats">
<a href="#d088ba20f051734394bf7ca283f33ed8127bc8ab">
compiler/GHC/Cmm/CallConv.hs
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<li class="file-stats">
<a href="#56e23d78cfece2c83f03ed9b9a8ce9b20be26462">
compiler/GHC/Cmm/Expr.hs
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<a href="#e9c044b79842eca94ef683d075c4bfeca3bbb931">
compiler/GHC/Cmm/Lexer.x
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<a href="#71e696f452eb493722d70306c6f304fc9b2f6a95">
compiler/GHC/Cmm/Parser.y
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<a href="#2bae5947e9412f6deebf4db7dcb89d780913130f">
compiler/GHC/CmmToAsm/X86/CodeGen.hs
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<a href="#7b360ca84c1b9aaecc0f9de207a7698dc36514fe">
compiler/GHC/CmmToAsm/X86/Instr.hs
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<a href="#1aff3a222f2ec5c5498930c3d145b401cc300028">
compiler/GHC/CmmToLlvm.hs
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<a href="#b5ac041c7f79084a7a7626eda4cdadda3457d235">
compiler/GHC/CmmToLlvm/Base.hs
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<a href="#a49dbda5c8a9c380f638f55cf5ade791db0017cc">
compiler/GHC/CmmToLlvm/CodeGen.hs
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<a href="#41223cea954a6fb02becb6018d5d7ff7467b31fc">
compiler/GHC/CmmToLlvm/Ppr.hs
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<a href="#7afeacc3c3f223aef50037f68cea140093ecc04a">
compiler/GHC/CmmToLlvm/Regs.hs
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<a href="#1522139eef391430974e254694d2feec1d43d85a">
compiler/GHC/StgToByteCode.hs
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<a href="#1a141104a301aae725892eb71bc39ae039bcf246">
compiler/GHC/StgToCmm/ArgRep.hs
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<a href="#e18aab7fcc134a71d91f9d26e33b5110a3917e44">
compiler/GHC/StgToCmm/Foreign.hs
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<a href="#7b3ca11b848c39ab65628e324180feb03c61a091">
compiler/GHC/StgToCmm/Layout.hs
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<a href="#d92ed897486e6597b1000abb84a65ad03542615b">
hadrian/src/Settings/Packages.hs
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<a href="#ee378ea1825f349ee558c3bc04acbcc4712c51b1">
libraries/ghc-heap/tests/stack_misc_closures_c.c
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<a href="#392aa194b7537295ca2ed01ea3375227db7cc2b4">
rts/AutoApply.h
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rts/CheckVectorSupport.c
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rts/CheckVectorSupport.h
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<a href="#864e56410efaa16e354282a06a222376524fc186">
rts/CloneStack.c
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<a href="#c295ca8b90dc6b200fb3e0cbd3dfdc5df307bbc7">
rts/HeapStackCheck.cmm
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<a href="#539d43389593f2626a387f2c904f03c215c7c802">
rts/Interpreter.c
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rts/Jumps.h
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rts/Jumps_D.cmm
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rts/Jumps_V16.cmm
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rts/Jumps_V32.cmm
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rts/Jumps_V64.cmm
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<a href="#1f366bc5cc9fea123d6a6ab6c25b1483994867d5">
rts/Printer.c
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The diff was not included because it is too large.
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