Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- diff --git a/gcc/config/arm/neon.md b/gcc/config/arm/neon.md
- index 654d9d5..3bfd821 100644
- --- a/gcc/config/arm/neon.md
- +++ b/gcc/config/arm/neon.md
- @@ -548,6 +548,32 @@
- (const_string "neon_mul_<V_elem_ch><q>")))]
- )
- +(define_expand "div<mode>3"
- + [(set (match_operand:VCVTF 0 "s_register_operand" "=w")
- + (div:VCVTF (match_operand:VCVTF 1 "s_register_operand" "w")
- + (match_operand:VCVTF 2 "s_register_operand" "w")))]
- + "TARGET_NEON && flag_unsafe_math_optimizations"
- + {
- + rtx rec = gen_reg_rtx (<MODE>mode);
- + rtx vrecps_temp = gen_reg_rtx (<MODE>mode);
- +
- + /* Reciprocal estimate */
- + emit_insn (gen_neon_vrecpe<mode> (rec, operands[2]));
- +
- + /* Perform 2 iterations of newton-raphson method */
- + for (int i = 0; i < 2; i++)
- + {
- + emit_insn (gen_neon_vrecps<mode> (vrecps_temp, rec, operands[2]));
- + emit_insn (gen_mul<mode>3 (rec, rec, vrecps_temp));
- + }
- +
- + /* We now have reciprocal in rec, perform operands[0] = operands[1] * rec */
- + emit_insn (gen_mul<mode>3 (operands[0], operands[1], rec));
- + DONE;
- + }
- +)
- +
- +
- (define_insn "mul<mode>3add<mode>_neon"
- [(set (match_operand:VDQW 0 "s_register_operand" "=w")
- (plus:VDQW (mult:VDQW (match_operand:VDQW 2 "s_register_operand" "w")
Advertisement
Add Comment
Please, Sign In to add comment