[PATCH] D120571: [CGP, AArch64] Replace zexts with shuffle that can be lowered using tbl.
Florian Hahn via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sat Feb 26 06:09:37 PST 2022
fhahn updated this revision to Diff 411604.
fhahn added a comment.
Fixed extraction mask so the extracted elements from the vi16i8 are at the front of each 4 x i8 block, so the vector before bitcasting looks like orig[0], 0, 0, 0, orig[1], 0, 0, 0,....
Modeled in Alive2: https://alive2.llvm.org/ce/z/hnrmsP (although a reduced version)
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D120571/new/
https://reviews.llvm.org/D120571
Files:
llvm/include/llvm/CodeGen/TargetLowering.h
llvm/lib/CodeGen/CodeGenPrepare.cpp
llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
llvm/lib/Target/AArch64/AArch64ISelLowering.h
llvm/test/CodeGen/AArch64/vselect-ext.ll
llvm/test/CodeGen/AArch64/zext-to-tbl.ll
llvm/test/Transforms/CodeGenPrepare/AArch64/zext-to-shuffle.ll
-------------- next part --------------
A non-text attachment was scrubbed...
Name: D120571.411604.patch
Type: text/x-patch
Size: 13909 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20220226/db2a93a4/attachment.bin>
More information about the llvm-commits
mailing list