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[DAG] SimplifyDemandedBits - AND/OR/XOR - attempt basic knownbits simplifications...
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Tue, 12 Jul 2022 13:08:47 +0000 (14:08 +0100)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Tue, 12 Jul 2022 13:09:00 +0000 (14:09 +0100)
commitded62411f730278016274361e5ce4e5234cc2957
tree47587e6bb275ef6850d799085172131062618a01tree | snapshot
parent165240fe38b4199adab40e57b61e848cc169a83ecommit | diff
[DAG] SimplifyDemandedBits - AND/OR/XOR - attempt basic knownbits simplifications before calling SimplifyMultipleUseDemandedBits

Noticed while investigating the SystemZ regressions in D77804, prefer handling the knownbits analysis/simplification in the bitop nodes directly before falling back to SimplifyMultipleUseDemandedBits
llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp diff | blob | history
llvm/test/CodeGen/SystemZ/store_nonbytesized_vecs.ll diff | blob | history
Domain: System / Toolchain;