[LLVMdev] Bug in optimization pass related to strcmp and bigendian back-ends

[Dan Gohman]

On Aug 11, 2009, at 3:04 AM, Richard Pennington <rich at pennware.com>  
wrote:

> Stripf, Timo wrote:
>> I thought the LLVM IR is target independent and that "llvm-gcc -c - 
>> emit-llvm -O2" produces target independent code.
>>
>> I'm working on a back-end and use llvm-gcc to first generate the bc  
>> file. Afterwards I use llc including the new back-end to produce  
>> the assembler file.
>>
>> -Timo
>
> LLVM IR is very target dependent. The IR knows about things like
> endian-ness, alignment, etc.

More precisely, LLVM IR generated from C is very target dependent.  See
http://llvm.org/docs/FAQ.html#platformindependent
for details.

Dan