[PATCH] D77946: [PowerPC] Don't use rldicl when targeting 32bit CPUs

[Nemanja Ivanovic via Phabricator via llvm-commits]

nemanjai accepted this revision.
nemanjai added a comment.
This revision is now accepted and ready to land.

LGTM. Thanks for fixing this.



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Comment at: llvm/lib/Target/PowerPC/PPCInstrInfo.td:5074
+def : Pat<(i32 (bitreverse i32:$A)), (RLDICL_32 RotateInsertByte1.Left, 0, 32)>;
+let Predicates = [In32BitMode] in
+def : Pat<(i32 (bitreverse i32:$A)), RotateInsertByte1.Left>;
----------------
These are the right predicates to use. Using `RLDICL` in 32-bit mode is at best unnecessary here and at worst not legal.


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https://reviews.llvm.org/D77946