Derek Schuff 1b258d313c [WebAssembly] Disable folding of GA+reg into load/store constant offsets ...

Summary:
If the register has a negative value then unsigned overflow will occur;
this case is sometimes even created intentionally by LSR. For now
disable GA+reg folding. Fixes PR29127

Differential Revision: https://reviews.llvm.org/D24053

llvm-svn: 280285

2016-08-31 20:27:20 +00:00

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