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llvm/test/Transforms/CodeGenPrepare
Vedant Kumar bfa7594241 [CodeGenPrepare] Preserve debug locs in OptimizeExtractBits
CodeGenPrepare has a transform that sinks {lshr, trunc} pairs to make it
easier for the backend to emit fancy extract-bits instructions (e.g UBFX).

Teach it to preserve debug locations and salvage debug values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@342319 91177308-0d34-0410-b5e6-96231b3b80d8
2018-09-15 04:08:52 +00:00
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