From 6f67b5ba63e0993d6aa9002c8c59fcf13148b869 Mon Sep 17 00:00:00 2001
From: Richard-Qin-X <richard.qin.001@gmail.com>
Date: Sat, 15 Aug 2026 04:26:05 +0800
Subject: [RISCV][GlobalISel] Preserve Zbb sign extensions

---
 backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.h')

diff --git a/backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.h b/backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.h
index 7e84764..43a18a1 100644
--- a/backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.h
+++ b/backend/lib/Target/RISCV/GISel/RISCVLegalizerInfo.h
@@ -18,6 +18,9 @@ public:
                                                  MachineInstr &Instruction) const override;
   [[nodiscard]] bool isSExtCheaperThanZExt(LowLevelType SourceType,
                                            LowLevelType DestinationType) const override;
+
+private:
+  const RISCVSubtarget &Subtarget;
 };
 
 } // namespace rcc::riscv
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