Displaying 2 results from an estimated 2 matches for "c1ed9272".
2013 Nov 16
0
[LLVMdev] struct with signed bitfield (PR17827)
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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