[PATCH] D98757: [AMX] Not fold constant bitcast into amx intrisic

Chang Lin via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Mar 16 21:19:50 PDT 2021


clin1 added inline comments.


================
Comment at: llvm/lib/Analysis/ConstantFolding.cpp:101
 /// Constant fold bitcast, symbolically evaluating it with DataLayout.
 /// This always returns a non-null constant, but it may be a
 /// ConstantExpr if unfoldable.
----------------
API for this function always returns non-null: can we return ConstantExpr::getBitCast(C,DestTy) instead? Then the change in SCCP is not needed either.


Repository:
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CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D98757/new/

https://reviews.llvm.org/D98757



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