Hi Faisal,
On Fri, Jul 12, 2019 at 10:47:10AM +0530, Faisal Riyaz wrote:
> (define_expand "mul<mode>3"
> [(match_operand:ANYF 0 "register_operand" "=f")
> (match_operand:ANYF 1 "register_operand" " f")
> (match_operand:ANYF 2 "register_operand" " f")]
> "TARGET_HARD_FLOAT"
> {
> rtx reg = gen_reg_rtx (SImode);
> emit_insn (gen_modfloatmul (operands[0], operands[1], operands[2]));
> if( fpexception == 3)
> { emit_insn(gen_riscv_frflags(reg));}
> DONE;
> })
>
> (define_insn "modfloatmul"
> [(set (match_operand:ANYF 0 "register_operand" "=f")
> (mult:ANYF (match_operand:ANYF 1 "register_operand" " f")
> (match_operand:ANYF 2 "register_operand" " f")))(use (match_operand:SI
> 3 ""))]
> "TARGET_HARD_FLOAT"
> "fmul.<fmt>\t%0,%1,%2"
> [(set_attr "type" "fmul")
> (set_attr "mode" "<UNITMODE>")])
>
> The build fails with the message:
> ../../../riscv-gcc/gcc/config/riscv/riscv.md:578:1: duplicate definition of
> 'modfloatmul'.
An iterator like ANYF creates multiple patterns, one for each mode in
this case. You should name the patterns starting with a * so that the
name is just a comment, and/or use <mode> in the pattern name.
So you'll have something like
(define_insn "*mul<mode>3"
...
But if you want to call its gen_, you can do something like
(define_insn "@mul<mode>3_insn"
...
where you then would call
gen_mul3_insn (mode, rest of arguments);
Segher
