[llvm] [PowerPC] Refactor immediate operand definitions (PR #179983)

[Lei Huang via llvm-commits]

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@@ -412,9 +414,11 @@ def : Pat<(int_ppc_cmpxchg_i128 ForceXForm:$ptr,
                            g8rc:$new_hi))>;
 
 let mayStore = 1, mayLoad = 0, hasSideEffects = 0 in
-def STDAT : XForm_base_r3xo_memOp<31, 742, (outs), (ins g8rc:$RST, ptr_rc_nor0:$RA, u5imm:$RB),
+def STDAT : XForm_base_r3xo_memOp<31, 742, (outs),
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lei137 wrote:

LDAT AFAIK don't have any target imm patterns in it's definiton.

https://github.com/llvm/llvm-project/pull/179983