diff --git a/llvm/lib/Target/ARM/ARMInstrThumb2.td b/llvm/lib/Target/ARM/ARMInstrThumb2.td
index c57b882f187c..3c193ac80fb7 100644
--- a/llvm/lib/Target/ARM/ARMInstrThumb2.td
+++ b/llvm/lib/Target/ARM/ARMInstrThumb2.td
@@ -3519,23 +3519,3 @@ def : T2Pat<(atomic_store_32 t2addrmode_imm8:$addr, GPR:$val),
             (t2STRi8    GPR:$val, t2addrmode_imm8:$addr)>;
 def : T2Pat<(atomic_store_32 t2addrmode_so_reg:$addr, GPR:$val),
             (t2STRs     GPR:$val, t2addrmode_so_reg:$addr)>;
-
-
-//===----------------------------------------------------------------------===//
-// Assembler aliases
-//
-
-// Aliases for ADC without the ".w" optional width specifier.
-def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $Rm",
-                  (t2ADCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
-def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $ShiftedRm",
-                  (t2ADCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
-                           pred:$p, cc_out:$s)>;
-
-// Aliases for SBC without the ".w" optional width specifier.
-def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $Rm",
-                  (t2SBCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
-def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $ShiftedRm",
-                  (t2SBCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm,
-                           pred:$p, cc_out:$s)>;
-