[clang] [llvm] [PowerPC] Add Support for BCDSHIFT, BCDSHIFTR, BCDTRUNC, BCDUTRUNC, and BCDUSHIFT instruction support (PR #154715)

[Lei Huang via llvm-commits]

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@@ -249,6 +269,11 @@ def PPCpaddiDtprel   : SDNode<"PPCISD::PADDI_DTPREL", SDTIntBinOp>;
 
 def PPCvperm     : SDNode<"PPCISD::VPERM", SDT_PPCvperm, []>;
 def PPCxxsplt    : SDNode<"PPCISD::XXSPLT", SDT_PPCVecSplat, []>;
+def PPCbcds      : SDNode<"PPCISD::BCDSHIFT", SDT_PPCBcdShift, []>;
+def PPCbcdsr     : SDNode<"PPCISD::BCDSHIFTROUND", SDT_PPCBcdShiftRound, []>;
+def PPCbcdtrunc  : SDNode<"PPCISD::BCDTRUNC", SDT_PPCBcdTrunc, []>;
+def PPCbcdutrunc : SDNode<"PPCISD::BCDUTRUNC", SDT_PPCBcdUTrunc, []>;
+def PPCbcdus     : SDNode<"PPCISD::BCDUSHIFT", SDT_PPCBcdUShift, []>;
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lei137 wrote:

Any reason why these definitions were inserted into here vs at the end of the def section with a doc line indicating these are bcd instructions?

https://github.com/llvm/llvm-project/pull/154715