[LLVMbugs] [Bug 16334] NVPTX generates PTX that prevent the driver to use certain instructions

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Tue Jun 25 06:40:03 PDT 2013


Justin Holewinski <justin.holewinski at gmail.com> changed:

           What    |Removed                     |Added
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #6 from Justin Holewinski <justin.holewinski at gmail.com> ---
No, the constant folding is happening (post-PTX).  You can see an add of
constant 0x4000 (16384).  The issue here is that the address arithmetic is now
being done with 64-bit types.  This is why you see many more integer arithmetic
ops (64-bit arithmetic using 32-bit instructions), and why ISCADD is not
sufficient here.  Unfortunately this is a consequence of using a 64-bit address

I'm closing this out as I don't see any actionable items here.  Please feel
free to re-open if you see anything.

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