search for: c1ed9272

Displaying 2 results from an estimated 2 matches for "c1ed9272".

2013 Nov 16
0
[LLVMdev] struct with signed bitfield (PR17827)
...ng list >> LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu >> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev >> >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20131116/c1ed9272/attachment.html>
2013 Nov 16
2
[LLVMdev] struct with signed bitfield (PR17827)
I actually think it is a problem with the optimizer like Kay first thought. -instcombine seems turning "((x and 6) shl 5) slt 32" into "(x and 6) slt 1". If the comparison were unsigned or the shl had a nsw flag, I think this would be okay. Since none of these is true, I don't think this transformation is correct. H. On Sat, Nov 16, 2013 at 1:41 AM, Mark Lacey