Displaying 2 results from an estimated 2 matches for "r178740".
2013 Apr 04
2
[LLVMdev] Is r174746 broken on ARM?
Hello Hal,
I have a strong suspicion that your constant folding optimization
introduced at r174746 is broken on ARM. There is a bug about it:
http://llvm.org/bugs/show_bug.cgi?id=15581
There is no such issue with 3.2, and reverting r174746 on top of
r178740 also fixes the problem. I'm trying to fix it myself, but
still have no good ideas; so it would be great to have an advice
from you.
Thanks in advance,
Dmitry
2013 Apr 04
0
[LLVMdev] Is r174746 broken on ARM?
...> Hello Hal,
>
> I have a strong suspicion that your constant folding optimization
> introduced at r174746 is broken on ARM. There is a bug about it:
>
> http://llvm.org/bugs/show_bug.cgi?id=15581
>
> There is no such issue with 3.2, and reverting r174746 on top of
> r178740 also fixes the problem. I'm trying to fix it myself, but
> still have no good ideas; so it would be great to have an advice
> from you.
r174746 is specifically related to pre-increment loads and stores. I think that the first step is to narrow down the problematic case. In DAGCombiner::C...