tree 569ddb48fd9acd2268a1f3e84f5f6d37b38224f3
parent 788b50a4384985f2c221cfd8d290cabc6f59e646
author zhijian lin <zhijian@ca.ibm.com> 1745244141 -0400
committer GitHub <noreply@github.com> 1745244141 -0400
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[SelectionDAG] Folding  ZERO-EXTEND/SIGN_EXTEND poison to Poison value in getNode (#122741)

The PR will fix the issue
https://github.com/llvm/llvm-project/issues/122728

This patch addresses the signed/zero extension of poison by using a
poison value of the extended type instead of a constant zero of the
extended type.