From 76ffebbcd0bc5ef8c124d5ec73ebcab4d9a351a9 Mon Sep 17 00:00:00 2001
From: Richard-Qin-X <richard.qin.001@gmail.com>
Date: Sat, 15 Aug 2026 21:22:38 +0800
Subject: [GlobalISel] Legalize saturating arithmetic

---
 backend/include/rcc/CodeGen/GlobalISel/LegalizerHelper.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'backend/include/rcc')

diff --git a/backend/include/rcc/CodeGen/GlobalISel/LegalizerHelper.h b/backend/include/rcc/CodeGen/GlobalISel/LegalizerHelper.h
index 830a427..c6b0f62 100644
--- a/backend/include/rcc/CodeGen/GlobalISel/LegalizerHelper.h
+++ b/backend/include/rcc/CodeGen/GlobalISel/LegalizerHelper.h
@@ -135,6 +135,9 @@ private:
   [[nodiscard]] Expected<void> widenScalarMulo(MachineInstr &Instruction, std::size_t TypeIndex,
                                                LowLevelType WideType);
   [[nodiscard]] Expected<void> lowerSignedAddSubOverflow(MachineInstr &Instruction);
+  [[nodiscard]] Expected<void> lowerSaturatingAddSubToMinMax(MachineInstr &Instruction);
+  [[nodiscard]] Expected<void> lowerSaturatingAddSubToOverflow(MachineInstr &Instruction);
+  [[nodiscard]] Expected<void> lowerSaturatingShiftLeft(MachineInstr &Instruction);
   [[nodiscard]] Expected<void> lowerMulo(MachineInstr &Instruction);
 
   MachineFunction &Function;
-- 
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