> > +(and (eq_attr "fix_lost_divsqrt" "true")
> > + (eq_attr "type" "fpdivs,fpsqrts,fpdivd,fpsqrtd"))
> > + (const_string "false")
>
> These lines should also be added to the in_integer_branch_annul_delay
> attribute.
Let's not though and make the modification I suggested instead
> 2017-11-17 Daniel Cederman
>
> * config/sparc/sparc.c (fpop_reg_depend_p): New function.
> (div_sqrt_insn_p): New function.
> (sparc_do_work_around_errata): Insert NOP instructions to
> prevent sequences that could trigger the TN-0013 errata for
> certain LEON3 p
+(and (eq_attr "fix_lost_divsqrt" "true")
+ (eq_attr "type" "fpdivs,fpsqrts,fpdivd,fpsqrtd"))
+ (const_string "false")
These lines should also be added to the in_integer_branch_annul_delay
attribute.
/Daniel C
This patch provides a workaround for the errata described in GRLIB-TN-0013.
If the workaround is enabled it will:
* Prevent div and sqrt instructions in the delay slot.
* Insert NOPs to prevent the sequence (div/sqrt) -> (two or three floating
point operations or loads) -> (div/sqrt).
* Not i
