http://llvm.org/bugs/show_bug.cgi?id=15263
Bug ID: 15263
Summary: TargetInstrInfo::isTriviallyReMaterializable() and
reMaterialize() are inadequate and require special
knowledge from callers
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Register Allocator
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
TargetInstrInfo::isTriviallyReMaterializable() doesn't check all of the
conditions on register classes and subregisters for its callers, and
reMaterialize() doesn't correctly update subregister definitions. They probably
don't have enough information to do this, but they should be extended to take
it and remove the burden from their callers.
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