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<p>On Tue, 10 Feb 2026 10:34:34 +0800 fanpeng <fanpeng@loongson.cn>
wrote:</fanpeng@loongson.cn></p>
<p>Re-generate the 0004-* patch based on the latest code.<br>
</p>
<p><br>
<fanpeng@loongson.cn></fanpeng@loongson.cn></p>
<fanpeng@loongson.cn>> Yes, It‘s also possible to use only the
parameters in EXTRA_HADRIAN_FLAGS.<br>
> <br>
> In addition, I notice that the content of this patch 0004-*
patch will <br>
> conflict, but this modification for Loong64 is necessary if
the LLvm <br>
> backend is used.<br>
> <br>
> <br>
> diff --git a/compiler/GHC/CmmToLlvm.hs
b/compiler/GHC/CmmToLlvm.hs<br>
> index de5d84c..ac52827 100644<br>
> --- a/compiler/GHC/CmmToLlvm.hs<br>
> +++ b/compiler/GHC/CmmToLlvm.hs<br>
> @@ -219,7 +219,13 @@ cmmMetaLlvmPrelude = do<br>
> ArchX86_64 | llvmCgAvxEnabled cfg ->
[mkStackAlignmentMeta 32]<br>
> _ -> []<br>
> module_flags_metas <- mkModuleFlagsMeta
stack_alignment_metas<br>
> - let metas = tbaa_metas ++ module_flags_metas<br>
> + let code_model_metas =<br>
> + case platformArch platform of<br>
> + -- FIXME: We should not rely on LLVM<br>
> + ArchLoongArch64 -> [mkCodeModelMeta CMMedium]<br>
> + _ -> []<br>
> + mcmodel_flags_metas <- mkModuleFlagsMeta
code_model_metas<br>
> + let metas = tbaa_metas ++ module_flags_metas ++
mcmodel_flags_metas<br>
> cfg <- getConfig<br>
> renderLlvm (ppLlvmMetas cfg metas)<br>
> (ppLlvmMetas cfg metas)<br>
> @@ -241,6 +247,15 @@ mkStackAlignmentMeta :: Integer ->
ModuleFlag<br>
> mkStackAlignmentMeta alignment =<br>
> ModuleFlag MFBError "override-stack-alignment" (MetaLit
$ LMIntLit <br>
> alignment i32)<br>
> <br>
> +-- LLVM's @LLVM::CodeModel::Model@ enumeration<br>
> +data CodeModel = CMMedium<br>
> +<br>
> +-- Pass -mcmodel=medium option to LLVM on LoongArch64<br>
> +mkCodeModelMeta :: CodeModel -> ModuleFlag<br>
> +mkCodeModelMeta codemodel =<br>
> + ModuleFlag MFBError "Code Model" (MetaLit $ LMIntLit n
i32)<br>
> + where<br>
> + n = case codemodel of CMMedium -> 3 -- as of LLVM 8<br>
> <br>
> -- <br>
>
-----------------------------------------------------------------------------<br>
> -- | Marks variables as used where necessary<br>
> <br>
> <br>
> On Sun, 25 Jan 2026 09:53:36 +0100 John Paul Adrian Glaubitz
wrote:<br>
> <br>
> > Hi fanpeng,<br>
> ><br>
> > On Wed, 2026-01-14 at 06:32 +0000, fanpeng wrote:<br>
> > > And the 0005-* patch is also required for C files.<br>
> ><br>
> > Did you forget this particular patch? I'm not seeing it
here.<br>
> ><br>
> > Why not just keep the parameters in EXTRA_HADRIAN_FLAGS?<br>
> ><br>
> > Adrian<br>
> ><br>
> ><br>
</fanpeng@loongson.cn><br>
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