Displaying 3 results from an estimated 3 matches for "9a35522e".
2011 Dec 08
0
[LLVMdev] Adding option to LLVM opt to disable a specific pass from command line
> For instance, I figured out that loop-idiom pass has a BUG in
> LLVM 2.9, a llvm.memcpy is generated for an overlapping memory region and
> then x86 backend reorder loads/store thus generating a BUG.
Just for the record it seems this is a bug in your frontend, not in
the LLVM backend. The memcpy intrinsic, like the standard memcpy
function, requires that the regions be non-overlapping:
2011 Dec 09
2
[LLVMdev] Adding option to LLVM opt to disable a specific pass from command line
...ml#int_memcpy By violating this
> contract it's possible you'll encounter all sorts of issues in other
> passes too.
>
> - David
>
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2011 Dec 08
3
[LLVMdev] Adding option to LLVM opt to disable a specific pass from command line
Hello Devang,
answers are interleaved
2011/12/7 Devang Patel <dpatel at apple.com>
> Hello,
>
> On Dec 7, 2011, at 2:07 AM, Seb wrote:
>
> > Hi all,
> >
> > I would like to add an option for LLVM 'opt' to disable a specific
> optimization pass from command line.
> >
> > The idea is to have something like:
> >
> > opt -O2