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RISC-V: Add MASK vec_duplicate pattern[PR110962]

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This patch fix bug:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110962

SUBROUTINE a(b,c,d)
  LOGICAL,DIMENSION(INOUT)  :: b
  LOGICAL e
  REAL, DIMENSION(IN)     ::  c
  REAL, DIMENSION(INOUT)  ::  d
  REAL, DIMENSION(SIZE(c))   :: f
  WHERE (b.AND.e)
     WHERE (f>=0.)
        d = g
     ENDWHERE
  ENDWHERE
END SUBROUTINE a

   PR target/110962

gcc/ChangeLog:
	PR target/110962
	* config/riscv/autovec.md (vec_duplicate<mode>): New pattern.
This commit is contained in:
Juzhe-Zhong 2023-08-10 18:37:05 +08:00 • committed by Pan Li
parent 6176527a75
commit da7b43fb02
1 changed files with 21 additions and 0 deletions
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21
gcc/config/riscv/autovec.md
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@ -287,6 +287,27 @@
;; == Vector creation
;; =========================================================================
;; -------------------------------------------------------------------------
;; ---- [BOOL] Duplicate element
;; -------------------------------------------------------------------------
;; The patterns in this section are synthetic.
;; -------------------------------------------------------------------------
;; Implement a predicate broadcast by shifting the low bit of the scalar
;; input into the top bit by duplicate the input and do a compare with zero.
(define_expand "vec_duplicate<mode>"
[(set (match_operand:VB 0 "register_operand")
(vec_duplicate:VB (match_operand:QI 1 "register_operand")))]
"TARGET_VECTOR"
{
poly_int64 nunits = GET_MODE_NUNITS (<MODE>mode);
machine_mode mode = riscv_vector::get_vector_mode (QImode, nunits).require ();
rtx dup = expand_vector_broadcast (mode, operands[1]);
riscv_vector::expand_vec_cmp (operands[0], NE, dup, CONST0_RTX (mode));
DONE;
}
)
;; -------------------------------------------------------------------------
;; ---- [INT] Linear series
;; -------------------------------------------------------------------------