[llvm] [LoongArch] Set isReMaterializable on LU{12,32,52}I.D/ADDI.D and {X}ORI instructions (PR #94552)

[Lu Weining via llvm-commits]

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@@ -734,6 +734,7 @@ def ADD_W : ALU_3R<0x00100000>;
 def SUB_W : ALU_3R<0x00110000>;
 def ADDI_W : ALU_2RI12<0x02800000, simm12_addlike>;
 def ALSL_W : ALU_3RI2<0x00040000, uimm2_plus1>;
+let isReMaterializable = 1 in
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SixWeining wrote:

For readability, It's better to add surrounding `{ ... }` since this is no blank line between this `def` and the next one.

https://github.com/llvm/llvm-project/pull/94552