llvm dev - Mar 2015 - [LLVMdev] LLVM fails for inline asm with Link Time Optimization

Hi ,
    I am trying to enable link time optimization for my projects. Few of
them has inline assembly which works perfectly with clang/llvm but on
enabling LTO I get following error

LLVM ERROR: Error parsing inline asm

<inline asm>:103:2 : error 0: unknown use of instruction mnemonic without
a
size suffix
<inline asm>:104:16 : error 0: invalid operand for instruction
<inline asm>:106:17 : error 0: unexpected token in argument list

& so on

Is this a known issue ? Any workaround for this ?


Thanks
Ashish
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On Wed, Mar 25, 2015 at 4:47 PM, Ashish Saxena <ashishcseitbhu at
gmail.com>
wrote:
> Hi ,
>     I am trying to enable link time optimization for my projects. Few of
> them has inline assembly which works perfectly with clang/llvm but on
> enabling LTO I get following error
>
> LLVM ERROR: Error parsing inline asm
>
> <inline asm>:103:2 : error 0: unknown use of instruction mnemonic
without
> a size suffix
> <inline asm>:104:16 : error 0: invalid operand for instruction
> <inline asm>:106:17 : error 0: unexpected token in argument list
>
> & so on
>
> Is this a known issue ? Any workaround for this ?
>

My experience is that LTO doesn't break inline assembly.
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Thanks for response Francois . Do you have any pointers on what can be the
issue here or something I can try out. I saw similar active bug in llvm
database

https://llvm.org/bugs/show_bug.cgi?id=5623

Thanks
Ashish

On Thu, Mar 26, 2015 at 10:52 PM, Francois Pichet <pichet2000 at
gmail.com>
wrote:
>
>
> On Wed, Mar 25, 2015 at 4:47 PM, Ashish Saxena <ashishcseitbhu at
gmail.com>
> wrote:
>
>> Hi ,
>>     I am trying to enable link time optimization for my projects. Few
of
>> them has inline assembly which works perfectly with clang/llvm but on
>> enabling LTO I get following error
>>
>> LLVM ERROR: Error parsing inline asm
>>
>> <inline asm>:103:2 : error 0: unknown use of instruction mnemonic
without
>> a size suffix
>> <inline asm>:104:16 : error 0: invalid operand for instruction
>> <inline asm>:106:17 : error 0: unexpected token in argument list
>>
>> & so on
>>
>> Is this a known issue ? Any workaround for this ?
>>
>
>
> My experience is that LTO doesn't break inline assembly.
>
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