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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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Commits:
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<ul>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/26304ce4d2b9e3ff6545d2616717217d4a8ae770">26304ce4</a></strong>
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<span> by sheaf </span> <i> at 2024-08-26T20:53:02+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;'>realArgRegsCover: only save/restore GP regs
This commit changes the meaning of the [*] annotation in low-level Cmm.
It now only means that general-purpose registers should be considered
live.
The idea is that we don't want to have to deal with saving/restoring
vector registers, as explained in Note [Caller-saved registers in low-level Cmm].
So we instead rely on the C functions we call to leave all SIMD
registers intact, by making use of __attribute__((target("general-regs-only")))
among other things.
Fixes #25169
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b5b1db776b20041c0a1ba20ca47bad14bd1446f6">b5b1db77</a></strong>
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<span> by sheaf </span> <i> at 2024-08-26T20:53:02+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;'>Modularise RegClass
This commit modularises the RegClass datatype, allowing it to be
used with architectures that have different register architectures, e.g.
RISC-V which has separate floating-point and vector registers.
The two modules GHC.Platform.Reg.Class.Unified and
GHC.Platform.Reg.Class.Separate implement the two register architectures
we currently support (corresponding to the two constructors of the
GHC.Platform.Reg.Class.RegArch datatype).
</pre>
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30 changed files:
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<a href="#2f6f8d6d05acc04b08fff94df4b3996c65b87892">
compiler/GHC/ByteCode/Asm.hs
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<a href="#d088ba20f051734394bf7ca283f33ed8127bc8ab">
compiler/GHC/Cmm/CallConv.hs
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<a href="#71e696f452eb493722d70306c6f304fc9b2f6a95">
compiler/GHC/Cmm/Parser.y
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<a href="#807babf5b215890881c92043bcd08486141a405c">
compiler/GHC/CmmToAsm/AArch64/Instr.hs
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<a href="#7cfe1a34e0b670dd84416b177237fa11a01b43da">
compiler/GHC/CmmToAsm/AArch64/Regs.hs
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compiler/GHC/CmmToAsm/PPC/CodeGen.hs
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compiler/GHC/CmmToAsm/PPC/Instr.hs
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compiler/GHC/CmmToAsm/PPC/Ppr.hs
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compiler/GHC/CmmToAsm/PPC/Regs.hs
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compiler/GHC/CmmToAsm/Reg/Graph.hs
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compiler/GHC/CmmToAsm/Reg/Graph/TrivColorable.hs
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compiler/GHC/CmmToAsm/Reg/Linear.hs
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compiler/GHC/CmmToAsm/Reg/Linear/AArch64.hs
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<a href="#3225e35c655b58843bc349bd56680268cdf059ed">
compiler/GHC/CmmToAsm/Reg/Linear/FreeRegs.hs
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compiler/GHC/CmmToAsm/Reg/Linear/PPC.hs
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<a href="#8a5d5b6d1415946cdbebc680a0c9d26ebca2a497">
compiler/GHC/CmmToAsm/Reg/Linear/X86.hs
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<a href="#c2a3ab492c92cc765c97d9d8a6537aacdd65f1f9">
compiler/GHC/CmmToAsm/Reg/Linear/X86_64.hs
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<a href="#d521a7e9ecba2e084a32cf4aa6c27fa59efbab32">
compiler/GHC/CmmToAsm/Reg/Target.hs
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<a href="#2bae5947e9412f6deebf4db7dcb89d780913130f">
compiler/GHC/CmmToAsm/X86/CodeGen.hs
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compiler/GHC/CmmToAsm/X86/Instr.hs
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<a href="#6f1d6f13690a99cf2aef1d65b21458cd35ce0466">
compiler/GHC/CmmToAsm/X86/Regs.hs
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<a href="#b5ac041c7f79084a7a7626eda4cdadda3457d235">
compiler/GHC/CmmToLlvm/Base.hs
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<a href="#8546b186e64a948cf49994a3acafbad3f1fb74f5">
compiler/GHC/Platform/Reg.hs
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<a href="#0fc8b8adcea8f09ad4522fd91c7c7b851d524bb1">
compiler/GHC/Platform/Reg/Class.hs
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compiler/GHC/Platform/Reg/Class/NoVectors.hs
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compiler/GHC/Platform/Reg/Class/Separate.hs
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compiler/GHC/Platform/Reg/Class/Unified.hs
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<a href="#1522139eef391430974e254694d2feec1d43d85a">
compiler/GHC/StgToByteCode.hs
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<a href="#e18aab7fcc134a71d91f9d26e33b5110a3917e44">
compiler/GHC/StgToCmm/Foreign.hs
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<a href="#13bc6c694b9a1fa78aeab1e992926d759374ecb2">
compiler/GHC/StgToCmm/Utils.hs
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The diff was not included because it is too large.
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