diff --git a/gcc/config/aarch64/aarch64-builtins.cc b/gcc/config/aarch64/aarch64-builtins.cc
index e0a741ac663188713e21f457affa57217d074783..69f1fb3604a481fa378d105cf3ee98edec1ba619 100644
--- a/gcc/config/aarch64/aarch64-builtins.cc
+++ b/gcc/config/aarch64/aarch64-builtins.cc
@@ -613,6 +613,12 @@ enum aarch64_builtins
   AARCH64_LS64_BUILTIN_ST64B,
   AARCH64_LS64_BUILTIN_ST64BV,
   AARCH64_LS64_BUILTIN_ST64BV0,
+  AARCH64_REV16,
+  AARCH64_REV16L,
+  AARCH64_REV16LL,
+  AARCH64_RBIT,
+  AARCH64_RBITL,
+  AARCH64_RBITLL,
   AARCH64_BUILTIN_MAX
 };
 
@@ -1664,10 +1670,41 @@ aarch64_init_ls64_builtins (void)
       = aarch64_general_add_builtin (data[i].name, data[i].type, data[i].code);
 }
 
+static void
+aarch64_init_data_intrinsics (void)
+{
+  tree uint32_fntype = build_function_type_list (uint32_type_node,
+						 uint32_type_node, NULL_TREE);
+  tree ulong_fntype = build_function_type_list (long_unsigned_type_node,
+						long_unsigned_type_node,
+						NULL_TREE);
+  tree uint64_fntype = build_function_type_list (uint64_type_node,
+						 uint64_type_node, NULL_TREE);
+  aarch64_builtin_decls[AARCH64_REV16]
+    = aarch64_general_add_builtin ("__builtin_aarch64_rev16", uint32_fntype,
+				   AARCH64_REV16);
+  aarch64_builtin_decls[AARCH64_REV16L]
+    = aarch64_general_add_builtin ("__builtin_aarch64_rev16l", ulong_fntype,
+				   AARCH64_REV16L);
+  aarch64_builtin_decls[AARCH64_REV16LL]
+    = aarch64_general_add_builtin ("__builtin_aarch64_rev16ll", uint64_fntype,
+				   AARCH64_REV16LL);
+  aarch64_builtin_decls[AARCH64_RBIT]
+    = aarch64_general_add_builtin ("__builtin_aarch64_rbit", uint32_fntype,
+				   AARCH64_RBIT);
+  aarch64_builtin_decls[AARCH64_RBITL]
+    = aarch64_general_add_builtin ("__builtin_aarch64_rbitl", ulong_fntype,
+				   AARCH64_RBITL);
+  aarch64_builtin_decls[AARCH64_RBITLL]
+    = aarch64_general_add_builtin ("__builtin_aarch64_rbitll", uint64_fntype,
+				   AARCH64_RBITLL);
+}
+
 /* Implement #pragma GCC aarch64 "arm_acle.h".  */
 void
 handle_arm_acle_h (void)
 {
+  aarch64_init_data_intrinsics ();
   if (TARGET_LS64)
     aarch64_init_ls64_builtins ();
 }
@@ -2393,6 +2430,40 @@ aarch64_expand_builtin_memtag (int fcode, tree exp, rtx target)
   emit_insn (pat);
   return target;
 }
+/* Function to expand an expression EXP which calls one of the ACLE Data
+   Intrinsic builtins FCODE with the result going to TARGET.  */
+static rtx
+aarch64_expand_builtin_data_intrinsic (unsigned int fcode, tree exp, rtx target)
+{
+  expand_operand ops[2];
+  machine_mode mode = GET_MODE (target);
+  create_output_operand (&ops[0], target, mode);
+  create_input_operand (&ops[1], expand_normal (CALL_EXPR_ARG (exp, 0)), mode);
+  enum insn_code icode;
+  switch (fcode)
+    {
+    case AARCH64_REV16:
+    case AARCH64_REV16L:
+    case AARCH64_REV16LL:
+      if (mode == SImode)
+	icode = CODE_FOR_aarch64_rev16si;
+      else
+	icode = CODE_FOR_aarch64_rev16di;
+      break;
+    case AARCH64_RBIT:
+    case AARCH64_RBITL:
+    case AARCH64_RBITLL:
+      if (mode == SImode)
+	icode = CODE_FOR_aarch64_rbitsi;
+      else
+	icode = CODE_FOR_aarch64_rbitdi;
+      break;
+    default:
+      gcc_unreachable ();
+    }
+  expand_insn (icode, 2, ops);
+  return target;
+}
 
 /* Expand an expression EXP as fpsr or fpcr setter (depending on
    UNSPEC) using MODE.  */
@@ -2551,6 +2622,9 @@ aarch64_general_expand_builtin (unsigned int fcode, tree exp, rtx target,
   if (fcode >= AARCH64_MEMTAG_BUILTIN_START
       && fcode <= AARCH64_MEMTAG_BUILTIN_END)
     return aarch64_expand_builtin_memtag (fcode, exp, target);
+  if (fcode >= AARCH64_REV16
+      && fcode <= AARCH64_RBITLL)
+    return aarch64_expand_builtin_data_intrinsic (fcode, exp, target);
 
   gcc_unreachable ();
 }
diff --git a/gcc/config/aarch64/aarch64.md b/gcc/config/aarch64/aarch64.md
index acec8c1146765c0fac73c15351853324b8f03209..ef0aed25c6b26eff61f9f6030dc5921a534e3d19 100644
--- a/gcc/config/aarch64/aarch64.md
+++ b/gcc/config/aarch64/aarch64.md
@@ -4950,7 +4950,7 @@ (define_expand "ffs<mode>2"
     rtx ccreg = aarch64_gen_compare_reg (EQ, operands[1], const0_rtx);
     rtx x = gen_rtx_NE (VOIDmode, ccreg, const0_rtx);
 
-    emit_insn (gen_rbit<mode>2 (operands[0], operands[1]));
+    emit_insn (gen_aarch64_rbit (<MODE>mode, operands[0], operands[1]));
     emit_insn (gen_clz<mode>2 (operands[0], operands[0]));
     emit_insn (gen_csinc3<mode>_insn (operands[0], x, operands[0], const0_rtx));
     DONE;
@@ -4996,7 +4996,7 @@ (define_insn "clrsb<mode>2"
   [(set_attr "type" "clz")]
 )
 
-(define_insn "rbit<mode>2"
+(define_insn "@aarch64_rbit<mode>"
   [(set (match_operand:GPI 0 "register_operand" "=r")
 	(unspec:GPI [(match_operand:GPI 1 "register_operand" "r")] UNSPEC_RBIT))]
   ""
@@ -5017,7 +5017,7 @@ (define_insn_and_split "ctz<mode>2"
   "reload_completed"
   [(const_int 0)]
   "
-  emit_insn (gen_rbit<mode>2 (operands[0], operands[1]));
+  emit_insn (gen_aarch64_rbit (<MODE>mode, operands[0], operands[1]));
   emit_insn (gen_clz<mode>2 (operands[0], operands[0]));
   DONE;
 ")
@@ -6022,6 +6022,13 @@ (define_insn "bswaphi2"
   [(set_attr "type" "rev")]
 )
 
+(define_insn "@aarch64_rev16<mode>"
+  [(set (match_operand:GPI 0 "register_operand" "=r")
+	(unspec:GPI [(match_operand:GPI 1 "register_operand" "r")] UNSPEC_REV))]
+  ""
+  "rev16\\t%<w>0, %<w>1"
+  [(set_attr "type" "rev")])
+
 (define_insn "*aarch64_bfxil<mode>"
   [(set (match_operand:GPI 0 "register_operand" "=r,r")
     (ior:GPI (and:GPI (match_operand:GPI 1 "register_operand" "r,0")
diff --git a/gcc/config/aarch64/arm_acle.h b/gcc/config/aarch64/arm_acle.h
index 9775a48c65825b424d3eb442384f5ab87b734fd7..a044bc74553fcf2a49b71290083f3f072fd5a2ce 100644
--- a/gcc/config/aarch64/arm_acle.h
+++ b/gcc/config/aarch64/arm_acle.h
@@ -28,6 +28,7 @@
 #define _GCC_ARM_ACLE_H
 
 #include <stdint.h>
+#include <stddef.h>
 
 #pragma GCC aarch64 "arm_acle.h"
 
@@ -35,6 +36,58 @@
 extern "C" {
 #endif
 
+#define _GCC_ARM_ACLE_ROR_FN(NAME, TYPE)				  \
+__extension__ extern __inline TYPE					  \
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))	  \
+NAME (TYPE __value, uint32_t __rotate)					  \
+{									  \
+  size_t __size = sizeof (TYPE) * __CHAR_BIT__;				  \
+  __rotate = __rotate % __size;						  \
+  return __value >> __rotate | __value << ((__size - __rotate) % __size); \
+}
+
+_GCC_ARM_ACLE_ROR_FN (__ror, uint32_t)
+_GCC_ARM_ACLE_ROR_FN (__rorl, unsigned long)
+_GCC_ARM_ACLE_ROR_FN (__rorll, uint64_t)
+
+#undef _GCC_ARM_ACLE_ROR_FN
+
+#define _GCC_ARM_ACLE_DATA_FN(NAME, BUILTIN, ITYPE, RTYPE)	    \
+__extension__ extern __inline RTYPE				    \
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__)) \
+__##NAME (ITYPE __value)					    \
+{								    \
+  return __builtin_##BUILTIN (__value);				    \
+}
+
+_GCC_ARM_ACLE_DATA_FN (clz, clz, uint32_t, unsigned int)
+_GCC_ARM_ACLE_DATA_FN (clzl, clzl, unsigned long, unsigned int)
+_GCC_ARM_ACLE_DATA_FN (clzll, clzll, uint64_t, unsigned int)
+_GCC_ARM_ACLE_DATA_FN (cls, clrsb, uint32_t, unsigned int)
+_GCC_ARM_ACLE_DATA_FN (clsl, clrsbl, unsigned long, unsigned int)
+_GCC_ARM_ACLE_DATA_FN (clsll, clrsbll, uint64_t, unsigned int)
+_GCC_ARM_ACLE_DATA_FN (rev16, aarch64_rev16, uint32_t, uint32_t)
+_GCC_ARM_ACLE_DATA_FN (rev16l, aarch64_rev16l, unsigned long, unsigned long)
+_GCC_ARM_ACLE_DATA_FN (rev16ll, aarch64_rev16ll, uint64_t, uint64_t)
+_GCC_ARM_ACLE_DATA_FN (rbit, aarch64_rbit, uint32_t, uint32_t)
+_GCC_ARM_ACLE_DATA_FN (rbitl, aarch64_rbitl, unsigned long, unsigned long)
+_GCC_ARM_ACLE_DATA_FN (rbitll, aarch64_rbitll, uint64_t, uint64_t)
+_GCC_ARM_ACLE_DATA_FN (revsh, bswap16, int16_t, uint16_t)
+_GCC_ARM_ACLE_DATA_FN (rev, bswap32, uint32_t, uint32_t)
+_GCC_ARM_ACLE_DATA_FN (revll, bswap64, uint64_t, uint64_t)
+
+#undef _GCC_ARM_ACLE_DATA_FN
+
+__extension__ extern __inline unsigned long
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+__revl (unsigned long __value)
+{
+  if (sizeof (unsigned long) == 8)
+    return __revll (__value);
+  else
+    return __rev (__value);
+}
+
 #pragma GCC push_options
 #pragma GCC target ("arch=armv8.3-a")
 __extension__ extern __inline int32_t
diff --git a/gcc/testsuite/gcc.target/aarch64/acle/data-intrinsics.c b/gcc/testsuite/gcc.target/aarch64/acle/data-intrinsics.c
new file mode 100644
index 0000000000000000000000000000000000000000..90813184704dfcdaf2d24d523ff744aa6cbedf1a
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/acle/data-intrinsics.c
@@ -0,0 +1,215 @@
+/* Test the ACLE data intrinsics.  */
+/* { dg-do assemble } */
+/* { dg-additional-options "--save-temps -O1" } */
+/* { dg-final { check-function-bodies "**" "" "" } } */
+
+#include "arm_acle.h"
+
+/*
+** test_clz:
+**	clz	w0, w0
+**	ret
+*/
+
+uint32_t test_clz (uint32_t a)
+{
+  return __clz (a);
+}
+
+/*
+** test_clzl:
+**	clz	[wx]0, [wx]0
+**	ret
+*/
+
+unsigned long test_clzl (unsigned long a)
+{
+  return __clzl (a);
+}
+
+/*
+** test_clzll:
+**	clz	x0, x0
+**	ret
+*/
+
+uint64_t test_clzll (uint64_t a)
+{
+  return __clzll (a);
+}
+
+/*
+** test_cls:
+**	cls	w0, w0
+**	ret
+*/
+
+uint32_t test_cls (uint32_t a)
+{
+  return __cls (a);
+}
+
+/*
+** test_clsl:
+**	cls	[wx]0, [wx]0
+**	ret
+*/
+
+unsigned long test_clsl (unsigned long a)
+{
+  return __clsl (a);
+}
+
+/*
+** test_clsll:
+**	cls	x0, x0
+**	ret
+*/
+
+uint64_t test_clsll (uint64_t a)
+{
+  return __clsll (a);
+}
+
+/*
+** test_rbit:
+**	rbit	w0, w0
+**	ret
+*/
+
+uint32_t test_rbit (uint32_t a)
+{
+  return __rbit (a);
+}
+
+/*
+** test_rbitl:
+**	rbit	[wx]0, [wx]0
+**	ret
+*/
+
+unsigned long test_rbitl (unsigned long a)
+{
+  return __rbitl (a);
+}
+
+/*
+** test_rbitll:
+**	rbit	x0, x0
+**	ret
+*/
+
+uint64_t test_rbitll (uint64_t a)
+{
+  return __rbitll (a);
+}
+
+/*
+** test_rev:
+**	rev	w0, w0
+**	ret
+*/
+
+uint32_t test_rev (uint32_t a)
+{
+  return __builtin_bswap32 (a);
+}
+
+/*
+** test_revl:
+**	rev	[wx]0, [wx]0
+**	ret
+*/
+
+unsigned long test_revl (unsigned long a)
+{
+  return __revl (a);
+}
+
+/*
+** test_revll:
+**	rev	x0, x0
+**	ret
+*/
+
+uint64_t test_revll (uint64_t a)
+{
+  return __revll (a);
+}
+
+/*
+** test_rev16:
+**	rev16	w0, w0
+**	ret
+*/
+
+uint32_t test_rev16 (uint32_t a)
+{
+  return __rev16 (a);
+}
+
+/*
+** test_rev16l:
+**	rev16	[wx]0, [wx]0
+**	ret
+*/
+
+unsigned long test_rev16l (unsigned long a)
+{
+  return __rev16l (a);
+}
+
+/*
+** test_rev16ll:
+**	rev16	x0, x0
+**	ret
+*/
+
+uint64_t test_rev16ll (uint64_t a)
+{
+  return __rev16ll (a);
+}
+
+/*
+** test_ror:
+**	ror	w0, w0, w1
+**	ret
+*/
+
+uint32_t test_ror (uint32_t a, uint32_t r)
+{
+  return __ror (a, r);
+}
+
+/*
+** test_rorl:
+**	ror	[wx]0, [wx]0, [wx]1
+**	ret
+*/
+
+unsigned long test_rorl (unsigned long a, uint32_t r)
+{
+  return __rorl (a, r);
+}
+
+/*
+** test_rorll:
+**	ror	x0, x0, x1
+**	ret
+*/
+
+uint64_t test_rorll (uint64_t a, uint32_t r)
+{
+  return __rorll (a, r);
+}
+
+/*
+** test_revsh:
+**	rev16	w0, w0
+**	ret
+*/
+
+int16_t test_revsh (int16_t a)
+{
+  return __revsh (a);
+}