[llvm-commits] [llvm] r44467 - in /llvm/trunk: include/llvm/CodeGen/LiveIntervalAnalysis.h lib/CodeGen/LiveIntervalAnalysis.cpp test/CodeGen/X86/2007-11-30-LoadFolding-Bug.ll
evan.cheng at apple.com
Fri Nov 30 17:43:03 PST 2007
On Nov 30, 2007, at 2:59 PM, Chris Lattner wrote:
> On Nov 30, 2007, at 1:23 PM, Evan Cheng wrote:
>> + // FIXME: It may be possible to fold load when there are
>> multiple uses.
>> + // e.g. On x86, TEST32rr r, r -> CMP32rm [mem], 0
>> + if (NumUses > 1)
>> + return false;
> Maybe it would be better for the target foldMemoryOperand hook to
> handle this?
Yeah, I have added that. Not yet checked in.
> Is there any hope of autogenerating foldMemoryOperand from the .td
> files? If so, that would be easy to add.
IMO, that's tricky enough to not be worthwhile.
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