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Diffstat (limited to 'gcc/config/arm/neon.md')
| -rw-r--r-- | gcc/config/arm/neon.md | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/config/arm/neon.md b/gcc/config/arm/neon.md index 669c34d..487c0a1 100644 --- a/gcc/config/arm/neon.md +++ b/gcc/config/arm/neon.md @@ -3030,6 +3030,26 @@ [(set_attr "type" "neon_fcmla")] ) +;; The complex mul operations always need to expand to two instructions. +;; The first operation does half the computation and the second does the +;; remainder. Because of this, expand early. +(define_expand "cmul<rot_op><mode>3" + [(set (match_operand:VDF 0 "register_operand") + (unspec:VDF [(match_operand:VDF 1 "register_operand") + (match_operand:VDF 2 "register_operand")] + VCMUL_OP))] + "TARGET_COMPLEX && !BYTES_BIG_ENDIAN" +{ + rtx tmp = gen_reg_rtx (<MODE>mode); + rtx res1 = gen_reg_rtx (<MODE>mode); + emit_move_insn (tmp, CONST0_RTX (<MODE>mode)); + emit_insn (gen_neon_vcmla<rotsplit1><mode> (res1, tmp, + operands[1], operands[2])); + emit_insn (gen_neon_vcmla<rotsplit2><mode> (operands[0], res1, + operands[1], operands[2])); + DONE; +}) + ;; These instructions map to the __builtins for the Dot Product operations. (define_insn "neon_<sup>dot<vsi2qi>" |