On 09/25/11 19:27, Richard Sandiford wrote:
> The store itself can still be a single SDC1 instruction, so we should
> generate the same notes regardless of mips_split_64bit_move_p.
>
> If that's right, then how about the patch below (tested on
> mips64-linux-gnu, but without the shrink-wrap patche
Bernd Schmidt writes:
> On 09/21/11 19:33, Richard Henderson wrote:
>> Why, then, is this the only place in dwarf2cfi that needs to handle
>> registers via a loop over nregs? It seems to me that we should either
>> be handling multi-register spans everywhere or nowhere.
>>
>> Because alternately
On 09/21/11 19:33, Richard Henderson wrote:
> Why, then, is this the only place in dwarf2cfi that needs to handle
> registers via a loop over nregs? It seems to me that we should either
> be handling multi-register spans everywhere or nowhere.
>
> Because alternately, this could be a bug in your
On 09/21/2011 07:55 AM, Bernd Schmidt wrote:
> On 09/15/11 21:42, Richard Henderson wrote:
>> On 09/14/2011 06:12 PM, Bernd Schmidt wrote:
>>> + unsigned int orig_regno = REGNO (reg);
>>> + int nregs = hard_regno_nregs[orig_regno][GET_MODE (reg)];
>>> + while (nregs-- > 0)
>>
>> The rest of the
On 09/15/11 21:42, Richard Henderson wrote:
> On 09/14/2011 06:12 PM, Bernd Schmidt wrote:
>> + unsigned int orig_regno = REGNO (reg);
>> + int nregs = hard_regno_nregs[orig_regno][GET_MODE (reg)];
>> + while (nregs-- > 0)
>
> The rest of the file seems to use targetm.dwarf_register_span.
> Thi
On 09/14/2011 06:12 PM, Bernd Schmidt wrote:
> + unsigned int orig_regno = REGNO (reg);
> + int nregs = hard_regno_nregs[orig_regno][GET_MODE (reg)];
> + while (nregs-- > 0)
The rest of the file seems to use targetm.dwarf_register_span.
This probably ought to do the same.
r~
While testing the altest iteration of shrink-wrapping on mips-elf, a new
failure showed up in gcc.dg/pr43139.c. When restoring floating-point
registers, we attach REG_CFA_RESTORE notes for DFmode registers, but the
dwarf2cfi code only records a single regno for such a multiword hard reg.
Fixed wit
