[gn] port 698f39bc1959
diff --git a/llvm/utils/gn/secondary/llvm/lib/Target/RISCV/Disassembler/BUILD.gn b/llvm/utils/gn/secondary/llvm/lib/Target/RISCV/Disassembler/BUILD.gn
index 94b6de7..447a67a 100644
--- a/llvm/utils/gn/secondary/llvm/lib/Target/RISCV/Disassembler/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/lib/Target/RISCV/Disassembler/BUILD.gn
@@ -5,7 +5,6 @@
   args = [
     "-gen-disassembler",
     "-specialize-decoders-per-bitwidth",
-    "-ignore-non-decodable-operands",
   ]
   td_file = "../RISCV.td"
 }