On Wed, 20 May 2026 13:39:05 +0200,
Robert Nagy <robert@openbsd.org> wrote:
> 
> sure
>

Thanks, commited.

But I have no idea how to split it in tested patch for llvm-22 in the base

> On 20/05/26 13:34 +0200, Kirill A. Korinsky wrote:
> > Sebastien, Robert,
> > 
> > I'd like to backport to llvm-22
> > https://github.com/llvm/llvm-project/commit/1b9fea021840f17c41ea980300d0fc45e7285909
> > which fixes a "compiler stuck" issue in libggml.
> > 
> > I think it should go to base version of llvm as well.
> > 
> > Here the diff for ports@ part.
> > 
> > Ok?
> > 
> > Index: Makefile
> > ===================================================================
> > RCS file: /home/cvs/ports/devel/llvm/22/Makefile,v
> > diff -u -p -r1.6 Makefile
> > --- Makefile	6 May 2026 12:47:03 -0000	1.6
> > +++ Makefile	20 May 2026 11:01:28 -0000
> > @@ -5,6 +5,8 @@ LLVM_MAJOR =	22
> >  LLVM_VERSION =	${LLVM_MAJOR}.1.5
> >  LLVM_PKGSPEC =	>=22,<23
> >  
> > +REVISION-main =	0
> > +
> >  SHARED_LIBS +=	LLVM		0.0 \
> >  		LTO		0.0 \
> >  		Remarks		0.0 \
> > Index: patches/patch-llvm_lib_Target_X86_X86ISelLowering_cpp
> > ===================================================================
> > RCS file: patches/patch-llvm_lib_Target_X86_X86ISelLowering_cpp
> > diff -N patches/patch-llvm_lib_Target_X86_X86ISelLowering_cpp
> > --- /dev/null	1 Jan 1970 00:00:00 -0000
> > +++ patches/patch-llvm_lib_Target_X86_X86ISelLowering_cpp	20 May 2026 10:59:58 -0000
> > @@ -0,0 +1,31 @@
> > +Backport https://github.com/llvm/llvm-project/commit/1b9fea021840f17c41ea980300d0fc45e7285909
> > +
> > +Index: llvm/lib/Target/X86/X86ISelLowering.cpp
> > +--- llvm/lib/Target/X86/X86ISelLowering.cpp.orig
> > ++++ llvm/lib/Target/X86/X86ISelLowering.cpp
> > +@@ -18004,9 +18004,12 @@ static SDValue lowerV64I8Shuffle(const SDLoc &DL, Arra
> > + 
> > +   // Try to create an in-lane repeating shuffle mask and then shuffle the
> > +   // results into the target lanes.
> > +-  if (SDValue V = lowerShuffleAsRepeatedMaskAndLanePermute(
> > +-          DL, MVT::v64i8, V1, V2, Mask, Subtarget, DAG))
> > +-    return V;
> > ++  // FIXME: Avoid on VBMI targets as the post lane permute often interferes
> > ++  // with shuffle combining (should be fixed by topological DAG sorting).
> > ++  if (!Subtarget.hasVBMI())
> > ++    if (SDValue V = lowerShuffleAsRepeatedMaskAndLanePermute(
> > ++            DL, MVT::v64i8, V1, V2, Mask, Subtarget, DAG))
> > ++      return V;
> > + 
> > +   if (SDValue Result = lowerShuffleAsLanePermuteAndPermute(
> > +           DL, MVT::v64i8, V1, V2, Mask, DAG, Subtarget))
> > +@@ -18041,7 +18044,8 @@ static SDValue lowerV64I8Shuffle(const SDLoc &DL, Arra
> > +   if (Subtarget.hasVBMI())
> > +     return lowerShuffleWithPERMV(DL, MVT::v64i8, Mask, V1, V2, Subtarget, DAG);
> > + 
> > +-  return splitAndLowerShuffle(DL, MVT::v64i8, V1, V2, Mask, DAG, /*SimpleOnly*/ false);
> > ++  return splitAndLowerShuffle(DL, MVT::v64i8, V1, V2, Mask, DAG,
> > ++                              /*SimpleOnly*/ false);
> > + }
> > + 
> > + /// High-level routine to lower various 512-bit x86 vector shuffles.
> > 
> > 
> > -- 
> > wbr, Kirill
> 
> -- 
> Regards,
> Robert Nagy
> 

-- 
wbr, Kirill