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2 Commits

Author SHA1 Message Date
Tim Northover
2c038deab6 ARM: add extra test for addrmode folding. 
I was worried we might replace a mul with a mul+shift even if there were later
uses. Turns out to be unfounded but I'd just as well add an actual test for it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302051 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-05-03 16:54:30 +00:00
Tim Northover
3d8a34a84b ARM: avoid handing a deleted node back to TableGen during ISel. 
When we replaced the multiplicand the destination node might already exist.
When that happens the original gets CSEd and deleted. However, it's actually
used as the offset so nonsense is produced.

Should fix PR32726.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301983 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-05-02 22:45:19 +00:00