A reload inheritance bug

Mark Shinwell shinwell@codesourcery.com
Tue May 15 10:14:00 GMT 2007


Rask Ingemann Lambertsen wrote:
> On Tue, May 15, 2007 at 09:31:10AM +0100, Mark Shinwell wrote:
>> Rask Ingemann Lambertsen wrote:
>>> On Mon, May 14, 2007 at 10:47:13PM +0100, Mark Shinwell wrote:
>>>
>>> [snip]
>>>>    - the last use of reg2 (in B) is inside a matched input operand;
>>> [snip]
>>>> The reload used for the instruction at B looks like this:
> [snip]
>>>>        GENERAL_REGS, RELOAD_FOR_INPUT (opnum = 1), inc by 8
> [snip]
>>>   I could be missing something here, but aren't matched operands given a
>>> reload type of RELOAD_OTHER rather than RELOAD_FOR_INPUT?
>> I might be tripping up on the terminology here then.  The original
>> instruction is:
>>
>> (insn:HI 5291 5282 5295 2 (set (reg:DF 4078 [ Jd+1040 ])
>>         (mem/s:DF (plus:SI (reg/f:SI 3275)
>>                 (reg:SI 3812)) [30 Jd+1040 S8 A64])) 578 {*movdf_vfp} (nil)
>>     (expr_list:REG_DEAD (reg/f:SI 3275)
>>         (expr_list:REG_DEAD (reg:SI 3812)
>>             (nil))))
> 
>    Where is the matched input operand you're referring to? I don't see any
> in the *movdf_vfp pattern.

Sorry, I am mistaken in the terminology.  Change the bullet point to:

- the last use of reg2 (in B) is inside an input operand.

Mark



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