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[RISCV] Recognize bexti from (srl (and X, 1<<C), C).
authorCraig Topper <craig.topper@sifive.com>
Wed, 20 Jul 2022 21:55:09 +0000 (14:55 -0700)
committerCraig Topper <craig.topper@sifive.com>
Wed, 20 Jul 2022 22:03:52 +0000 (15:03 -0700)
commit31b8939dede49effdca25431a108b44e8d389544
tree864681ee251d96b5e69746c8a8edee343cf8e28dtree | snapshot
parent6746b2349c6be8d5becc87a2a825c1b26ac08d3ccommit | diff
[RISCV] Recognize bexti from (srl (and X, 1<<C), C).

This is the form we get for (zext (setne (and X 1<<C))). We only
had bexti patterns for the alternative form (and (srl X, C), 1).
llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp diff | blob | history
llvm/test/CodeGen/RISCV/rv32zbs.ll diff | blob | history
llvm/test/CodeGen/RISCV/rv64zbs.ll diff | blob | history
Domain: System / Toolchain;