From: Kong Lingling <lingling.k...@intel.com>

Legacy adc patterns are commonly adopted to TImode add, when extending TImode
add to NDD version, operands[0] and operands[1] can be different, so extra move
should be emitted if those patterns have optimization when adding const0_rtx.

NDD instructions will automatically zero-extend dest register to 64bit, so for
zext patterns it can adopt all NDD form that have memory src input.

gcc/ChangeLog:

        * config/i386/i386.md (*add<dwi>3_doubleword): Add ndd constraints, and
        move operands[1] to operands[0] when they are not equal.
        (*add<dwi>3_doubleword_cc_overflow_1): Likewise.
        (*add<dwi>3_doubleword_zext): Add ndd constraints.
        (*addv<dwi>4_doubleword): Likewise.
        (*addv<dwi>4_doubleword_1): Likewise.
        (addv<mode>4_overflow_1): Likewise.
        (*addv<mode>4_overflow_2): Likewise.
        (@add<mode>3_carry): Likewise.
        (*add<mode>3_carry_0): Likewise.
        (*addsi3_carry_zext): Likewise.
        (addcarry<mode>): Likewise.
        (addcarry<mode>_0): Likewise.
        (*addcarry<mode>_1): Likewise.
        (*add<mode>3_eq): Likewise.
        (*add<mode>3_ne): Likewise.
        (*addsi3_carry_zext_0): Likewise, and use nonimmediate_operand for
        operands[1] to accept memory input for NDD alternative.

gcc/testsuite/ChangeLog:

        * gcc.target/i386/apx-ndd-adc.c: New test.
---
 gcc/config/i386/i386.md                     | 191 ++++++++++++--------
 gcc/testsuite/gcc.target/i386/apx-ndd-adc.c |  15 ++
 2 files changed, 134 insertions(+), 72 deletions(-)
 create mode 100644 gcc/testsuite/gcc.target/i386/apx-ndd-adc.c

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 6b316e698bb..358a3857f89 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -6291,12 +6291,12 @@ (define_expand "add<mode>3"
                                TARGET_APX_NDD); DONE;")
 
 (define_insn_and_split "*add<dwi>3_doubleword"
-  [(set (match_operand:<DWI> 0 "nonimmediate_operand" "=ro,r")
+  [(set (match_operand:<DWI> 0 "nonimmediate_operand" "=ro,r,r,r")
        (plus:<DWI>
-         (match_operand:<DWI> 1 "nonimmediate_operand" "%0,0")
-         (match_operand:<DWI> 2 "x86_64_hilo_general_operand" "r<di>,o")))
+         (match_operand:<DWI> 1 "nonimmediate_operand" "%0,0,ro,r")
+         (match_operand:<DWI> 2 "x86_64_hilo_general_operand" 
"r<di>,o,r<di>,r")))
    (clobber (reg:CC FLAGS_REG))]
-  "ix86_binary_operator_ok (PLUS, <DWI>mode, operands)"
+  "ix86_binary_operator_ok (PLUS, <DWI>mode, operands, TARGET_APX_NDD)"
   "#"
   "&& reload_completed"
   [(parallel [(set (reg:CCC FLAGS_REG)
@@ -6316,24 +6316,34 @@ (define_insn_and_split "*add<dwi>3_doubleword"
   split_double_mode (<DWI>mode, &operands[0], 3, &operands[0], &operands[3]);
   if (operands[2] == const0_rtx)
     {
+      /* Under NDD op0 and op1 may not equal, do not delete insn then.  */
+      bool emit_insn_deleted_note_p = true;
+      if (!rtx_equal_p (operands[0], operands[1]))
+       {
+         emit_move_insn (operands[0], operands[1]);
+         emit_insn_deleted_note_p = false;
+       }
       if (operands[5] != const0_rtx)
-       ix86_expand_binary_operator (PLUS, <MODE>mode, &operands[3]);
+       ix86_expand_binary_operator (PLUS, <MODE>mode, &operands[3],
+                                    TARGET_APX_NDD);
       else if (!rtx_equal_p (operands[3], operands[4]))
        emit_move_insn (operands[3], operands[4]);
-      else
+      else if (emit_insn_deleted_note_p)
        emit_note (NOTE_INSN_DELETED);
       DONE;
     }
-})
+}
+[(set_attr "isa" "*,*,apx_ndd,apx_ndd")])
 
 (define_insn_and_split "*add<dwi>3_doubleword_zext"
-  [(set (match_operand:<DWI> 0 "nonimmediate_operand" "=r,o")
+  [(set (match_operand:<DWI> 0 "nonimmediate_operand" "=r,o,r,r")
        (plus:<DWI>
          (zero_extend:<DWI>
-           (match_operand:DWIH 2 "nonimmediate_operand" "rm,r")) 
-         (match_operand:<DWI> 1 "nonimmediate_operand" "0,0")))
+           (match_operand:DWIH 2 "nonimmediate_operand" "rm,r,rm,r"))
+         (match_operand:<DWI> 1 "nonimmediate_operand" "0,0,r,m")))
    (clobber (reg:CC FLAGS_REG))]
-  "ix86_binary_operator_ok (UNKNOWN, <DWI>mode, operands)"
+  "ix86_binary_operator_ok (UNKNOWN, <DWI>mode, operands,
+                           TARGET_APX_NDD)"
   "#"
   "&& reload_completed"
   [(parallel [(set (reg:CCC FLAGS_REG)
@@ -6349,7 +6359,8 @@ (define_insn_and_split "*add<dwi>3_doubleword_zext"
                       (match_dup 4))
                     (const_int 0)))
              (clobber (reg:CC FLAGS_REG))])]
- "split_double_mode (<DWI>mode, &operands[0], 2, &operands[0], &operands[3]);")
+ "split_double_mode (<DWI>mode, &operands[0], 2, &operands[0], &operands[3]);"
+ [(set_attr "isa" "*,*,apx_ndd,apx_ndd")])
 
 (define_insn_and_split "*add<dwi>3_doubleword_concat"
   [(set (match_operand:<DWI> 0 "register_operand" "=&r")
@@ -7411,14 +7422,14 @@ (define_insn_and_split "*addv<dwi>4_doubleword"
        (eq:CCO
          (plus:<QPWI>
            (sign_extend:<QPWI>
-             (match_operand:<DWI> 1 "nonimmediate_operand" "%0,0"))
+             (match_operand:<DWI> 1 "nonimmediate_operand" "%0,0,ro,r"))
            (sign_extend:<QPWI>
-             (match_operand:<DWI> 2 "nonimmediate_operand" "r,o")))
+             (match_operand:<DWI> 2 "nonimmediate_operand" "r,o,r,o")))
          (sign_extend:<QPWI>
            (plus:<DWI> (match_dup 1) (match_dup 2)))))
-   (set (match_operand:<DWI> 0 "nonimmediate_operand" "=ro,r")
+   (set (match_operand:<DWI> 0 "nonimmediate_operand" "=ro,r,r,r")
        (plus:<DWI> (match_dup 1) (match_dup 2)))]
-  "ix86_binary_operator_ok (PLUS, <DWI>mode, operands)"
+  "ix86_binary_operator_ok (PLUS, <DWI>mode, operands, TARGET_APX_NDD)"
   "#"
   "&& reload_completed"
   [(parallel [(set (reg:CCC FLAGS_REG)
@@ -7448,22 +7459,23 @@ (define_insn_and_split "*addv<dwi>4_doubleword"
                     (match_dup 5)))])]
 {
   split_double_mode (<DWI>mode, &operands[0], 3, &operands[0], &operands[3]);
-})
+}
+[(set_attr "isa" "*,*,apx_ndd,apx_ndd")])
 
 (define_insn_and_split "*addv<dwi>4_doubleword_1"
   [(set (reg:CCO FLAGS_REG)
        (eq:CCO
          (plus:<QPWI>
            (sign_extend:<QPWI>
-             (match_operand:<DWI> 1 "nonimmediate_operand" "%0"))
-           (match_operand:<QPWI> 3 "const_scalar_int_operand" "n"))
+             (match_operand:<DWI> 1 "nonimmediate_operand" "%0,rm"))
+           (match_operand:<QPWI> 3 "const_scalar_int_operand" "n,n"))
          (sign_extend:<QPWI>
            (plus:<DWI>
              (match_dup 1)
-             (match_operand:<DWI> 2 "x86_64_hilo_general_operand" "<di>")))))
-   (set (match_operand:<DWI> 0 "nonimmediate_operand" "=ro")
+             (match_operand:<DWI> 2 "x86_64_hilo_general_operand" 
"<di>,<di>")))))
+   (set (match_operand:<DWI> 0 "nonimmediate_operand" "=ro,r")
        (plus:<DWI> (match_dup 1) (match_dup 2)))]
-  "ix86_binary_operator_ok (PLUS, <DWI>mode, operands)
+  "ix86_binary_operator_ok (PLUS, <DWI>mode, operands, TARGET_APX_NDD)
    && CONST_SCALAR_INT_P (operands[2])
    && rtx_equal_p (operands[2], operands[3])"
   "#"
@@ -7501,7 +7513,8 @@ (define_insn_and_split "*addv<dwi>4_doubleword_1"
                                    operands[5]));
       DONE;
     }
-})
+}
+[(set_attr "isa" "*,apx_ndd")])
 
 (define_insn "*addv<mode>4_overflow_1"
   [(set (reg:CCO FLAGS_REG)
@@ -7511,9 +7524,9 @@ (define_insn "*addv<mode>4_overflow_1"
              (match_operator:<DWI> 4 "ix86_carry_flag_operator"
                [(match_operand 3 "flags_reg_operand") (const_int 0)])
              (sign_extend:<DWI>
-               (match_operand:SWI 1 "nonimmediate_operand" "%0,0")))
+               (match_operand:SWI 1 "nonimmediate_operand" "%0,0,rm,r")))
            (sign_extend:<DWI>
-             (match_operand:SWI 2 "<general_sext_operand>" "rWe,m")))
+             (match_operand:SWI 2 "<general_sext_operand>" "rWe,m,rWe,m")))
          (sign_extend:<DWI>
            (plus:SWI
              (plus:SWI
@@ -7521,15 +7534,20 @@ (define_insn "*addv<mode>4_overflow_1"
                  [(match_dup 3) (const_int 0)])
                (match_dup 1))
              (match_dup 2)))))
-   (set (match_operand:SWI 0 "nonimmediate_operand" "=rm,r")
+   (set (match_operand:SWI 0 "nonimmediate_operand" "=rm,r,r,r")
        (plus:SWI
          (plus:SWI
            (match_op_dup 5 [(match_dup 3) (const_int 0)])
            (match_dup 1))
          (match_dup 2)))]
-  "ix86_binary_operator_ok (PLUS, <MODE>mode, operands)"
-  "adc{<imodesuffix>}\t{%2, %0|%0, %2}"
-  [(set_attr "type" "alu")
+  "ix86_binary_operator_ok (PLUS, <MODE>mode, operands, TARGET_APX_NDD)"
+  "@
+   adc{<imodesuffix>}\t{%2, %0|%0, %2}
+   adc{<imodesuffix>}\t{%2, %0|%0, %2}
+   adc{<imodesuffix>}\t{%2, %1, %0|%0, %1, %2}
+   adc{<imodesuffix>}\t{%2, %1, %0|%0, %1, %2}"
+  [(set_attr "isa" "*,*,apx_ndd,apx_ndd")
+   (set_attr "type" "alu")
    (set_attr "mode" "<MODE>")])
 
 (define_insn "*addv<mode>4_overflow_2"
@@ -7540,26 +7558,29 @@ (define_insn "*addv<mode>4_overflow_2"
              (match_operator:<DWI> 4 "ix86_carry_flag_operator"
                [(match_operand 3 "flags_reg_operand") (const_int 0)])
              (sign_extend:<DWI>
-               (match_operand:SWI 1 "nonimmediate_operand" "%0")))
-           (match_operand:<DWI> 6 "const_int_operand" "n"))
+               (match_operand:SWI 1 "nonimmediate_operand" "%0,rm")))
+           (match_operand:<DWI> 6 "const_int_operand" "n,n"))
          (sign_extend:<DWI>
            (plus:SWI
              (plus:SWI
                (match_operator:SWI 5 "ix86_carry_flag_operator"
                  [(match_dup 3) (const_int 0)])
                (match_dup 1))
-             (match_operand:SWI 2 "x86_64_immediate_operand" "e")))))
-   (set (match_operand:SWI 0 "nonimmediate_operand" "=rm")
+             (match_operand:SWI 2 "x86_64_immediate_operand" "e,e")))))
+   (set (match_operand:SWI 0 "nonimmediate_operand" "=rm,r")
        (plus:SWI
          (plus:SWI
            (match_op_dup 5 [(match_dup 3) (const_int 0)])
            (match_dup 1))
          (match_dup 2)))]
-  "ix86_binary_operator_ok (PLUS, <MODE>mode, operands)
+  "ix86_binary_operator_ok (PLUS, <MODE>mode, operands, TARGET_APX_NDD)
    && CONST_INT_P (operands[2])
    && INTVAL (operands[2]) == INTVAL (operands[6])"
-  "adc{<imodesuffix>}\t{%2, %0|%0, %2}"
-  [(set_attr "type" "alu")
+  "@
+  adc{<imodesuffix>}\t{%2, %0|%0, %2}
+  adc{<imodesuffix>}\t{%2, %1, %0|%0, %1, %2}"
+  [(set_attr "isa" "*,apx_ndd")
+   (set_attr "type" "alu")
    (set_attr "mode" "<MODE>")
    (set (attr "length_immediate")
      (if_then_else (match_test "IN_RANGE (INTVAL (operands[2]), -128, 127)")
@@ -8381,17 +8402,22 @@ (define_insn "*subsi_3_zext"
 ;; Add with carry and subtract with borrow
 
 (define_insn "@add<mode>3_carry"
-  [(set (match_operand:SWI 0 "nonimmediate_operand" "=<r>m,<r>")
+  [(set (match_operand:SWI 0 "nonimmediate_operand" "=<r>m,<r>,r,r")
        (plus:SWI
          (plus:SWI
            (match_operator:SWI 4 "ix86_carry_flag_operator"
             [(match_operand 3 "flags_reg_operand") (const_int 0)])
-           (match_operand:SWI 1 "nonimmediate_operand" "%0,0"))
-         (match_operand:SWI 2 "<general_operand>" "<r><i>,<m>")))
+           (match_operand:SWI 1 "nonimmediate_operand" "%0,0,rm,r"))
+         (match_operand:SWI 2 "<general_operand>" "<r><i>,<m>,r<i>,<m>")))
    (clobber (reg:CC FLAGS_REG))]
-  "ix86_binary_operator_ok (PLUS, <MODE>mode, operands)"
-  "adc{<imodesuffix>}\t{%2, %0|%0, %2}"
-  [(set_attr "type" "alu")
+  "ix86_binary_operator_ok (PLUS, <MODE>mode, operands, TARGET_APX_NDD)"
+  "@
+   adc{<imodesuffix>}\t{%2, %0|%0, %2}
+   adc{<imodesuffix>}\t{%2, %0|%0, %2}
+   adc{<imodesuffix>}\t{%2, %1, %0|%0, %1, %2}
+   adc{<imodesuffix>}\t{%2, %1, %0|%0, %1, %2}"
+  [(set_attr "isa" "*,*,apx_ndd,apx_ndd")
+   (set_attr "type" "alu")
    (set_attr "use_carry" "1")
    (set_attr "pent_pair" "pu")
    (set_attr "mode" "<MODE>")])
@@ -8478,31 +8504,39 @@ (define_insn "*add<mode>3_carry_0r"
    (set_attr "mode" "<MODE>")])
 
 (define_insn "*addsi3_carry_zext"
-  [(set (match_operand:DI 0 "register_operand" "=r")
+  [(set (match_operand:DI 0 "register_operand" "=r,r,r")
        (zero_extend:DI
          (plus:SI
            (plus:SI (match_operator:SI 3 "ix86_carry_flag_operator"
                      [(reg FLAGS_REG) (const_int 0)])
-                    (match_operand:SI 1 "register_operand" "%0"))
-           (match_operand:SI 2 "x86_64_general_operand" "rBMe"))))
+                    (match_operand:SI 1 "nonimmediate_operand" "%0,r,rm"))
+           (match_operand:SI 2 "x86_64_general_operand" "rBMe,rBMe,re"))))
    (clobber (reg:CC FLAGS_REG))]
-  "TARGET_64BIT && ix86_binary_operator_ok (PLUS, SImode, operands)"
-  "adc{l}\t{%2, %k0|%k0, %2}"
-  [(set_attr "type" "alu")
+  "TARGET_64BIT && ix86_binary_operator_ok (PLUS, SImode, operands,
+                                           TARGET_APX_NDD)"
+  "@
+  adc{l}\t{%2, %k0|%k0, %2}
+  adc{l}\t{%2, %1, %k0|%k0, %1, %2}
+  adc{l}\t{%2, %1, %k0|%k0, %1, %2}"
+  [(set_attr "isa" "*,apx_ndd,apx_ndd")
+   (set_attr "type" "alu")
    (set_attr "use_carry" "1")
    (set_attr "pent_pair" "pu")
    (set_attr "mode" "SI")])
 
 (define_insn "*addsi3_carry_zext_0"
-  [(set (match_operand:DI 0 "register_operand" "=r")
+  [(set (match_operand:DI 0 "register_operand" "=r,r")
        (zero_extend:DI
          (plus:SI (match_operator:SI 2 "ix86_carry_flag_operator"
                    [(reg FLAGS_REG) (const_int 0)])
-                  (match_operand:SI 1 "register_operand" "0"))))
+                  (match_operand:SI 1 "nonimmediate_operand" "0,rm"))))
    (clobber (reg:CC FLAGS_REG))]
   "TARGET_64BIT"
-  "adc{l}\t{$0, %k0|%k0, 0}"
-  [(set_attr "type" "alu")
+  "@
+  adc{l}\t{$0, %k0|%k0, 0}
+  adc{l}\t{$0, %1, %k0|%k0, %1, 0}"
+  [(set_attr "isa" "*,apx_ndd")
+   (set_attr "type" "alu")
    (set_attr "use_carry" "1")
    (set_attr "pent_pair" "pu")
    (set_attr "mode" "SI")])
@@ -8531,20 +8565,25 @@ (define_insn "addcarry<mode>"
              (plus:SWI48
                (match_operator:SWI48 5 "ix86_carry_flag_operator"
                  [(match_operand 3 "flags_reg_operand") (const_int 0)])
-               (match_operand:SWI48 1 "nonimmediate_operand" "%0,0"))
-             (match_operand:SWI48 2 "nonimmediate_operand" "r,rm")))
+               (match_operand:SWI48 1 "nonimmediate_operand" "%0,0,rm,r"))
+             (match_operand:SWI48 2 "nonimmediate_operand" "r,rm,r,m")))
          (plus:<DWI>
            (zero_extend:<DWI> (match_dup 2))
            (match_operator:<DWI> 4 "ix86_carry_flag_operator"
              [(match_dup 3) (const_int 0)]))))
-   (set (match_operand:SWI48 0 "nonimmediate_operand" "=rm,r")
+   (set (match_operand:SWI48 0 "nonimmediate_operand" "=rm,r,r,r")
        (plus:SWI48 (plus:SWI48 (match_op_dup 5
                                 [(match_dup 3) (const_int 0)])
                                (match_dup 1))
                    (match_dup 2)))]
-  "ix86_binary_operator_ok (PLUS, <MODE>mode, operands)"
-  "adc{<imodesuffix>}\t{%2, %0|%0, %2}"
-  [(set_attr "type" "alu")
+  "ix86_binary_operator_ok (PLUS, <MODE>mode, operands, TARGET_APX_NDD)"
+  "@
+  adc{<imodesuffix>}\t{%2, %0|%0, %2}
+  adc{<imodesuffix>}\t{%2, %0|%0, %2}
+  adc{<imodesuffix>}\t{%2, %1, %0|%0, %1, %2}
+  adc{<imodesuffix>}\t{%2, %1, %0|%0, %1, %2}"
+  [(set_attr "isa" "*,*,apx_ndd,apx_ndd")
+   (set_attr "type" "alu")
    (set_attr "use_carry" "1")
    (set_attr "pent_pair" "pu")
    (set_attr "mode" "<MODE>")])
@@ -8702,7 +8741,8 @@ (define_expand "addcarry<mode>_0"
             (match_dup 1)))
       (set (match_operand:SWI48 0 "nonimmediate_operand")
           (plus:SWI48 (match_dup 1) (match_dup 2)))])]
-  "ix86_binary_operator_ok (PLUS, <MODE>mode, operands)")
+  "ix86_binary_operator_ok (PLUS, <MODE>mode, operands,
+                           TARGET_APX_NDD)")
 
 (define_insn "*addcarry<mode>_1"
   [(set (reg:CCC FLAGS_REG)
@@ -8712,18 +8752,18 @@ (define_insn "*addcarry<mode>_1"
              (plus:SWI48
                (match_operator:SWI48 5 "ix86_carry_flag_operator"
                  [(match_operand 3 "flags_reg_operand") (const_int 0)])
-               (match_operand:SWI48 1 "nonimmediate_operand" "%0"))
-             (match_operand:SWI48 2 "x86_64_immediate_operand" "e")))
+               (match_operand:SWI48 1 "nonimmediate_operand" "%0,rm"))
+             (match_operand:SWI48 2 "x86_64_immediate_operand" "e,e")))
          (plus:<DWI>
            (match_operand:<DWI> 6 "const_scalar_int_operand")
            (match_operator:<DWI> 4 "ix86_carry_flag_operator"
              [(match_dup 3) (const_int 0)]))))
-   (set (match_operand:SWI48 0 "nonimmediate_operand" "=rm")
+   (set (match_operand:SWI48 0 "nonimmediate_operand" "=rm,r")
        (plus:SWI48 (plus:SWI48 (match_op_dup 5
                                 [(match_dup 3) (const_int 0)])
                                (match_dup 1))
                    (match_dup 2)))]
-  "ix86_binary_operator_ok (PLUS, <MODE>mode, operands)
+  "ix86_binary_operator_ok (PLUS, <MODE>mode, operands, TARGET_APX_NDD)
    && CONST_INT_P (operands[2])
    /* Check that operands[6] is operands[2] zero extended from
       <MODE>mode to <DWI>mode.  */
@@ -8736,8 +8776,11 @@ (define_insn "*addcarry<mode>_1"
          && ((unsigned HOST_WIDE_INT) CONST_WIDE_INT_ELT (operands[6], 0)
              == UINTVAL (operands[2]))
          && CONST_WIDE_INT_ELT (operands[6], 1) == 0))"
-  "adc{<imodesuffix>}\t{%2, %0|%0, %2}"
-  [(set_attr "type" "alu")
+  "@
+  adc{<imodesuffix>}\t{%2, %0|%0, %2}
+  adc{<imodesuffix>}\t{%2, %1, %0|%0, %1, %2}"
+  [(set_attr "isa" "*,apx_ndd")
+   (set_attr "type" "alu")
    (set_attr "use_carry" "1")
    (set_attr "pent_pair" "pu")
    (set_attr "mode" "<MODE>")
@@ -9385,12 +9428,12 @@ (define_insn_and_split 
"*add<dwi>3_doubleword_cc_overflow_1"
   [(set (reg:CCC FLAGS_REG)
        (compare:CCC
          (plus:<DWI>
-           (match_operand:<DWI> 1 "nonimmediate_operand" "%0,0")
-           (match_operand:<DWI> 2 "x86_64_hilo_general_operand" "r<di>,o"))
+           (match_operand:<DWI> 1 "nonimmediate_operand" "%0,0,ro,r")
+           (match_operand:<DWI> 2 "x86_64_hilo_general_operand" 
"r<di>,o,r<di>,o"))
          (match_dup 1)))
-   (set (match_operand:<DWI> 0 "nonimmediate_operand" "=ro,r")
+   (set (match_operand:<DWI> 0 "nonimmediate_operand" "=ro,r,r,r")
        (plus:<DWI> (match_dup 1) (match_dup 2)))]
-  "ix86_binary_operator_ok (PLUS, <DWI>mode, operands)"
+  "ix86_binary_operator_ok (PLUS, <DWI>mode, operands, TARGET_APX_NDD)"
   "#"
   "&& reload_completed"
   [(parallel [(set (reg:CCC FLAGS_REG)
@@ -9419,6 +9462,8 @@ (define_insn_and_split 
"*add<dwi>3_doubleword_cc_overflow_1"
   split_double_mode (<DWI>mode, &operands[0], 3, &operands[0], &operands[3]);
   if (operands[2] == const0_rtx)
     {
+      if (!rtx_equal_p (operands[0], operands[1]))
+       emit_move_insn (operands[0], operands[1]);
       emit_insn (gen_addcarry<mode>_0 (operands[3], operands[4], operands[5]));
       DONE;
     }
@@ -9427,7 +9472,8 @@ (define_insn_and_split 
"*add<dwi>3_doubleword_cc_overflow_1"
                                            operands[5], <MODE>mode);
   else
     operands[6] = gen_rtx_ZERO_EXTEND (<DWI>mode, operands[5]);
-})
+}
+[(set_attr "isa" "*,*,apx_ndd,apx_ndd")])
 
 ;; x == 0 with zero flag test can be done also as x < 1U with carry flag
 ;; test, where the latter is preferrable if we have some carry consuming
@@ -9442,7 +9488,7 @@ (define_insn_and_split "*add<mode>3_eq"
            (match_operand:SWI 1 "nonimmediate_operand"))
          (match_operand:SWI 2 "<general_operand>")))
    (clobber (reg:CC FLAGS_REG))]
-  "ix86_binary_operator_ok (PLUS, <MODE>mode, operands)
+  "ix86_binary_operator_ok (PLUS, <MODE>mode, operands, TARGET_APX_NDD)
    && ix86_pre_reload_split ()"
   "#"
   "&& 1"
@@ -9466,7 +9512,8 @@ (define_insn_and_split "*add<mode>3_ne"
   "CONST_INT_P (operands[2])
    && (<MODE>mode != DImode
        || INTVAL (operands[2]) != HOST_WIDE_INT_C (-0x80000000))
-   && ix86_binary_operator_ok (PLUS, <MODE>mode, operands)
+   && ix86_binary_operator_ok (PLUS, <MODE>mode, operands,
+                              TARGET_APX_NDD)
    && ix86_pre_reload_split ()"
   "#"
   "&& 1"
diff --git a/gcc/testsuite/gcc.target/i386/apx-ndd-adc.c 
b/gcc/testsuite/gcc.target/i386/apx-ndd-adc.c
new file mode 100644
index 00000000000..9d5991457da
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/apx-ndd-adc.c
@@ -0,0 +1,15 @@
+/* { dg-do compile { target { int128 && { ! ia32 } } } } */
+/* { dg-options "-mapxf -O2" } */
+
+#include "pr91681-1.c"
+// *addti3_doubleword
+// *addti3_doubleword_zext
+// *adddi3_cc_overflow_1
+// *adddi3_carry
+
+int foo3 (int *a, int b) 
+{                                        
+  int c = *a + b + (a > b); /* { dg-warning "comparison between pointer and 
integer" } */
+  return c;                              
+}                      
+/* { dg-final { scan-assembler-not "xor" } } */
-- 
2.31.1

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