1 files changed, 5 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/contrib/llvm-project/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index e7f40523efaf..3178ee16af2b 100644
--- a/contrib/llvm-project/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/contrib/llvm-project/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -1063,6 +1063,11 @@ LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalar(MachineInstr &MI,
     Observer.changedInstr(MI);
     return Legalized;
   case TargetOpcode::G_PHI: {
+    // FIXME: add support for when SizeOp0 isn't an exact multiple of
+    // NarrowSize.
+    if (SizeOp0 % NarrowSize != 0)
+      return UnableToLegalize;
+
     unsigned NumParts = SizeOp0 / NarrowSize;
     SmallVector<Register, 2> DstRegs(NumParts);
     SmallVector<SmallVector<Register, 2>, 2> SrcRegs(MI.getNumOperands() / 2);