[llvm-dev] error:Ran out of lanemask bits to represent subregisterr

[hameeza ahmed via llvm-dev]

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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