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

[Stripf, Timo]

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

-----Ursprüngliche Nachricht-----
Von: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] Im Auftrag von Eli Friedman
Gesendet: Dienstag, 11. August 2009 10:27
An: LLVM Developers Mailing List
Betreff: Re: [LLVMdev] Bug in optimization pass related to strcmp and bigendian back-ends

On Tue, Aug 11, 2009 at 1:13 AM, Stripf,
Timo<Timo.Stripf at itiv.uni-karlsruhe.de> wrote:
> On little endian machines the code works correct but on big endian %lhsv
> must be compared against 73 << 8.

If llvm-gcc thinks it's compiling for a little-endian target, the
optimizers will assume the target is little-endian... what are you
trying to do?

-Eli
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