diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfo.td b/llvm/lib/Target/RISCV/RISCVInstrInfo.td
--- a/llvm/lib/Target/RISCV/RISCVInstrInfo.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfo.td
@@ -409,10 +409,6 @@
 
 // Standalone (codegen-only) immleaf patterns.
 
-// A 12-bit signed immediate plus one where the imm range will be [-2047, 2048].
-def simm12_plus1 : ImmLeaf<XLenVT,
-  [{return (isInt<12>(Imm) && Imm != -2048) || Imm == 2048;}]>;
-
 // A 6-bit constant greater than 32.
 def uimm6gt32 : ImmLeaf<XLenVT, [{
   return isUInt<6>(Imm) && Imm > 32;