https://bugs.llvm.org/show_bug.cgi?id=36336
Bug ID: 36336
Summary: [SelectionDAG] Improve constant pool loads for
ComputeKnownBits/NumSignBits
Product: libraries
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: Common Code Generator Code
Assignee: unassignedb...@nondot.org
Reporter: llvm-...@redking.me.uk
CC: llvm-bugs@lists.llvm.org
ISD::LOAD handling for ComputeKnownBits/NumSignBits only handle basic EXTLOADs
and range metadata.
It'd be useful to be able to extract constant pool data, including target
specific wrappers such as X86ISelLowering's getTargetConstantFromNode.
This would help ComputeKnownBits/NumSignBits users work with constant vectors
after legalization.
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