diff --git a/gcc/config/arm/arm-protos.h b/gcc/config/arm/arm-protos.h
index 2bc43019864ef70ed1bf1e725bad7437cf9b11d8..79ede0db174fcce87abe8b4d18893550d4c7e2f6 100644
--- a/gcc/config/arm/arm-protos.h
+++ b/gcc/config/arm/arm-protos.h
@@ -109,7 +109,7 @@ extern int arm_coproc_mem_operand (rtx, bool);
 extern int neon_vector_mem_operand (rtx, int, bool);
 extern int neon_struct_mem_operand (rtx);
 
-extern rtx *neon_vcmla_lane_prepare_operands (machine_mode, rtx *);
+extern rtx *neon_vcmla_lane_prepare_operands (rtx *);
 
 extern int tls_mentioned_p (rtx);
 extern int symbol_mentioned_p (rtx);
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index cb5e7215e813dc922d606662df3fdc5040fd3524..0b598d20a46ebc6b5c29c782228da045f9a078c1 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -12724,8 +12724,7 @@ neon_struct_mem_operand (rtx op)
 /* Prepares the operands for the VCMLA by lane instruction such that the right
    register number is selected.  This instruction is special in that it always
    requires a D register, however there is a choice to be made between Dn[0],
-   Dn[1], D(n+1)[0], and D(n+1)[1] depending on the mode of the registers and
-   the PATTERNMODE of the insn.
+   Dn[1], D(n+1)[0], and D(n+1)[1] depending on the mode of the registers.
 
    The VCMLA by lane function always selects two values. For instance given D0
    and a V2SF, the only valid index is 0 as the values in S0 and S1 will be
@@ -12737,9 +12736,9 @@ neon_struct_mem_operand (rtx op)
    updated to contain the right index.  */
 
 rtx *
-neon_vcmla_lane_prepare_operands (machine_mode patternmode, rtx *operands)
+neon_vcmla_lane_prepare_operands (rtx *operands)
 {
-  int lane = NEON_ENDIAN_LANE_N (patternmode, INTVAL (operands[4]));
+  int lane = INTVAL (operands[4]);
   machine_mode constmode = SImode;
   machine_mode mode = GET_MODE (operands[3]);
   int regno = REGNO (operands[3]);
diff --git a/gcc/config/arm/neon.md b/gcc/config/arm/neon.md
index 6f8e7c1cffd2751c1ee7e03ded0410ad3c09c13f..f9d7ba35b137fed383f84eecbe81dd942943d216 100644
--- a/gcc/config/arm/neon.md
+++ b/gcc/config/arm/neon.md
@@ -3494,7 +3494,7 @@
 			     VCMLA)))]
   "TARGET_COMPLEX"
   {
-    operands = neon_vcmla_lane_prepare_operands (<MODE>mode, operands);
+    operands = neon_vcmla_lane_prepare_operands (operands);
     return "vcmla.<V_s_elem>\t%<V_reg>0, %<V_reg>2, d%c3[%c4], #<rot>";
   }
   [(set_attr "type" "neon_fcmla")]
@@ -3509,7 +3509,7 @@
 			      VCMLA)))]
   "TARGET_COMPLEX"
   {
-    operands = neon_vcmla_lane_prepare_operands (<MODE>mode, operands);
+    operands = neon_vcmla_lane_prepare_operands (operands);
     return "vcmla.<V_s_elem>\t%<V_reg>0, %<V_reg>2, d%c3[%c4], #<rot>";
   }
   [(set_attr "type" "neon_fcmla")]
@@ -3524,7 +3524,7 @@
 				 VCMLA)))]
   "TARGET_COMPLEX"
   {
-    operands = neon_vcmla_lane_prepare_operands (<MODE>mode, operands);
+    operands = neon_vcmla_lane_prepare_operands (operands);
     return "vcmla.<V_s_elem>\t%<V_reg>0, %<V_reg>2, d%c3[%c4], #<rot>";
   }
   [(set_attr "type" "neon_fcmla")]