1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Target/ARM/ARMInstrInfo.td b/llvm/lib/Target/ARM/ARMInstrInfo.td
index 652742ab6f5..209c1a3fd96 100644
--- a/llvm/lib/Target/ARM/ARMInstrInfo.td
+++ b/llvm/lib/Target/ARM/ARMInstrInfo.td
@@ -412,7 +412,9 @@ def shift_so_reg : Operand<i32>,    // reg reg imm
 
 // so_imm - Match a 32-bit shifter_operand immediate operand, which is an
 // 8-bit immediate rotated by an arbitrary number of bits.
-def so_imm : Operand<i32>, PatLeaf<(imm), [{ return Pred_so_imm(N); }]> {
+def so_imm : Operand<i32>, ImmLeaf<i32, [{
+    return ARM_AM::getSOImmVal(Imm) != -1;
+  }]> {
   let EncoderMethod = "getSOImmOpValue";
   let PrintMethod = "printSOImmOperand";
 }