llvm dev - Jul 2017 - error:Ran out of lanemask bits to represent subregisterr

Thank You.

I have replaced all the occurrences of unsigned with uint64_t in Lanemask.h
and in all other related files like codegenregisters.cpp,
codegenregisters.h, MIParser.cpp etc... Also i changed Log2_32 to Log2_64
and replaced 4 with 8 in  codegenregisters.cpp, but still getting the same
error:


error:Ran out of lanemask bits to represent subregister
sub_32768bit_hi_then_sub_16384bit_hi_then_sub_8192bit_hi_then
_sub_4096bit_hi_then_sub_2048bit_hi_then_sub_32bit_hi_then

Now what to do?

Please help.


On Wed, Jul 19, 2017 at 5:57 PM, Krzysztof Parzyszek <
kparzysz at codeaurora.org> wrote:
> Hi,
> The LaneBitmask is implemented in include/llvm/MC/LaneBitmask.h.  You
> will need to change the underlying type and the associated member
functions.
> If you have a large number of lanes, you will need to replace it with a
> type that can contain as many independent bits as you need (BitVector would
> be an ultimate solution).  You may run into some problems with the uses of
> the member function "getAsInteger", but you can change those to
something
> equivalent according to the type you use.
>
> -Krzysztof
>
>
> On 7/19/2017 3:51 AM, hameeza ahmed wrote:
>
>> Hello,
>> Mr. krzysztof I have seen similar question asked by you on llvm group.
>> Could you please help me here to address this issue.
>>
>> i am trying to construct a register of size 65536 bit by combining 2
>> registers of 32768 bits. both the 32768 bit registers are different so
i
>> have to use the following method
>>
>> let SubRegIndices = [sub_32768bit, sub_32768bit_hi], CoveredBySubRegs =
1
>> in
>>
>> but i am getting following error..
>>
>> error:Ran out of lanemask bits to represent subregister
>> sub_32768bit_hi_then_sub_16384bit_hi_then_sub_8192bit_hi_
>> then_sub_4096bit_hi_then_sub_2048bit_hi_then_sub_32bit_hi_then
>>
>> now how to increase lanemask bits? what changes are required??
>>
>>
>> Kindly help.
>>
>>
>>
>>
>>
> --
> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted
> by The Linux Foundation
>
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Did you change the hardcoded 32 right before the line that prints that
error in CodeGenRegisters.cpp to 64?

~Craig

On Wed, Jul 19, 2017 at 11:38 AM, hameeza ahmed <hahmed2305 at gmail.com>
wrote:
> Thank You.
>
> I have replaced all the occurrences of unsigned with uint64_t in
> Lanemask.h and in all other related files like codegenregisters.cpp,
> codegenregisters.h, MIParser.cpp etc... Also i changed Log2_32 to Log2_64
> and replaced 4 with 8 in  codegenregisters.cpp, but still getting the same
> error:
>
>
> error:Ran out of lanemask bits to represent subregister
> sub_32768bit_hi_then_sub_16384bit_hi_then_sub_8192bit_hi_then
> _sub_4096bit_hi_then_sub_2048bit_hi_then_sub_32bit_hi_then
>
> Now what to do?
>
> Please help.
>
>
> On Wed, Jul 19, 2017 at 5:57 PM, Krzysztof Parzyszek <
> kparzysz at codeaurora.org> wrote:
>
>> Hi,
>> The LaneBitmask is implemented in include/llvm/MC/LaneBitmask.h.  You
>> will need to change the underlying type and the associated member
functions.
>> If you have a large number of lanes, you will need to replace it with a
>> type that can contain as many independent bits as you need (BitVector
would
>> be an ultimate solution).  You may run into some problems with the uses
of
>> the member function "getAsInteger", but you can change those
to something
>> equivalent according to the type you use.
>>
>> -Krzysztof
>>
>>
>> On 7/19/2017 3:51 AM, hameeza ahmed wrote:
>>
>>> Hello,
>>> Mr. krzysztof I have seen similar question asked by you on llvm
group.
>>> Could you please help me here to address this issue.
>>>
>>> i am trying to construct a register of size 65536 bit by combining
2
>>> registers of 32768 bits. both the 32768 bit registers are different
so i
>>> have to use the following method
>>>
>>> let SubRegIndices = [sub_32768bit, sub_32768bit_hi],
CoveredBySubRegs >>> 1 in
>>>
>>> but i am getting following error..
>>>
>>> error:Ran out of lanemask bits to represent subregister
>>> sub_32768bit_hi_then_sub_16384bit_hi_then_sub_8192bit_hi_the
>>> n_sub_4096bit_hi_then_sub_2048bit_hi_then_sub_32bit_hi_then
>>>
>>> now how to increase lanemask bits? what changes are required??
>>>
>>>
>>> Kindly help.
>>>
>>>
>>>
>>>
>>>
>> --
>> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
hosted
>> by The Linux Foundation
>>
>
>
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As you mentioned i changed 32 to 64 but now some new errors come which
require to change unsigned to uint64_t in mentioned files. i have changed
in mentioned files but still errors come to change in other files..

What to do?

On Thu, Jul 20, 2017 at 12:08 AM, Craig Topper <craig.topper at gmail.com>
wrote:
> Did you change the hardcoded 32 right before the line that prints that
> error in CodeGenRegisters.cpp to 64?
>
> ~Craig
>
> On Wed, Jul 19, 2017 at 11:38 AM, hameeza ahmed <hahmed2305 at
gmail.com>
> wrote:
>
>> Thank You.
>>
>> I have replaced all the occurrences of unsigned with uint64_t in
>> Lanemask.h and in all other related files like codegenregisters.cpp,
>> codegenregisters.h, MIParser.cpp etc... Also i changed Log2_32 to
Log2_64
>> and replaced 4 with 8 in  codegenregisters.cpp, but still getting the
same
>> error:
>>
>>
>> error:Ran out of lanemask bits to represent subregister
>> sub_32768bit_hi_then_sub_16384bit_hi_then_sub_8192bit_hi_then
>> _sub_4096bit_hi_then_sub_2048bit_hi_then_sub_32bit_hi_then
>>
>> Now what to do?
>>
>> Please help.
>>
>>
>> On Wed, Jul 19, 2017 at 5:57 PM, Krzysztof Parzyszek <
>> kparzysz at codeaurora.org> wrote:
>>
>>> Hi,
>>> The LaneBitmask is implemented in include/llvm/MC/LaneBitmask.h. 
You
>>> will need to change the underlying type and the associated member
functions.
>>> If you have a large number of lanes, you will need to replace it
with a
>>> type that can contain as many independent bits as you need
(BitVector would
>>> be an ultimate solution).  You may run into some problems with the
uses of
>>> the member function "getAsInteger", but you can change
those to something
>>> equivalent according to the type you use.
>>>
>>> -Krzysztof
>>>
>>>
>>> On 7/19/2017 3:51 AM, hameeza ahmed wrote:
>>>
>>>> Hello,
>>>> Mr. krzysztof I have seen similar question asked by you on llvm
group.
>>>> Could you please help me here to address this issue.
>>>>
>>>> i am trying to construct a register of size 65536 bit by
combining 2
>>>> registers of 32768 bits. both the 32768 bit registers are
different so i
>>>> have to use the following method
>>>>
>>>> let SubRegIndices = [sub_32768bit, sub_32768bit_hi],
CoveredBySubRegs >>>> 1 in
>>>>
>>>> but i am getting following error..
>>>>
>>>> error:Ran out of lanemask bits to represent subregister
>>>> sub_32768bit_hi_then_sub_16384bit_hi_then_sub_8192bit_hi_the
>>>> n_sub_4096bit_hi_then_sub_2048bit_hi_then_sub_32bit_hi_then
>>>>
>>>> now how to increase lanemask bits? what changes are required??
>>>>
>>>>
>>>> Kindly help.
>>>>
>>>>
>>>>
>>>>
>>>>
>>> --
>>> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
>>> hosted by The Linux Foundation
>>>
>>
>>
>
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