Yes, It‘s also possible to use only the parameters in EXTRA_HADRIAN_FLAGS.
In addition, I notice that the content of this patch 0004-* patch will
conflict, but this modification for Loong64 is necessary if the LLvm
backend is used.
diff --git a/compiler/GHC/CmmToLlvm.hs b/compiler/GHC/CmmToLlvm.hs
index de5d84c..ac52827 100644
--- a/compiler/GHC/CmmToLlvm.hs
+++ b/compiler/GHC/CmmToLlvm.hs
@@ -219,7 +219,13 @@ cmmMetaLlvmPrelude = do
ArchX86_64 | llvmCgAvxEnabled cfg -> [mkStackAlignmentMeta 32]
_ -> []
module_flags_metas <- mkModuleFlagsMeta stack_alignment_metas
- let metas = tbaa_metas ++ module_flags_metas
+ let code_model_metas =
+ case platformArch platform of
+ -- FIXME: We should not rely on LLVM
+ ArchLoongArch64 -> [mkCodeModelMeta CMMedium]
+ _ -> []
+ mcmodel_flags_metas <- mkModuleFlagsMeta code_model_metas
+ let metas = tbaa_metas ++ module_flags_metas ++ mcmodel_flags_metas
cfg <- getConfig
renderLlvm (ppLlvmMetas cfg metas)
(ppLlvmMetas cfg metas)
@@ -241,6 +247,15 @@ mkStackAlignmentMeta :: Integer -> ModuleFlag
mkStackAlignmentMeta alignment =
ModuleFlag MFBError "override-stack-alignment" (MetaLit $ LMIntLit
alignment i32)
+-- LLVM's @LLVM::CodeModel::Model@ enumeration
+data CodeModel = CMMedium
+
+-- Pass -mcmodel=medium option to LLVM on LoongArch64
+mkCodeModelMeta :: CodeModel -> ModuleFlag
+mkCodeModelMeta codemodel =
+ ModuleFlag MFBError "Code Model" (MetaLit $ LMIntLit n i32)
+ where
+ n = case codemodel of CMMedium -> 3 -- as of LLVM 8
--
-----------------------------------------------------------------------------
-- | Marks variables as used where necessary
On Sun, 25 Jan 2026 09:53:36 +0100 John Paul Adrian Glaubitz wrote:
> Hi fanpeng,
>
> On Wed, 2026-01-14 at 06:32 +0000, fanpeng wrote:
> > And the 0005-* patch is also required for C files.
>
> Did you forget this particular patch? I'm not seeing it here.
>
> Why not just keep the parameters in EXTRA_HADRIAN_FLAGS?
>
> Adrian
>
>
> --
> .''`. John Paul Adrian Glaubitz
> : :' : Debian Developer
> `. `' Physicist
> `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
>
>
