[lld] [lld][LoongArch] Fix relaxation for R_LARCH_GOT_PC_{HI20, LO12} (PR #151264)

[Lu Weining via llvm-commits]

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@@ -25,6 +25,11 @@
 # RELAX-NEXT:              pcaddi $a0, 4094
 # RELAX-NEXT:              pcaddi $a0, 4093
 
+# RELAX32-NEXT:            pcalau12i $a0, 4
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SixWeining wrote:

This prefix is ambiguous. Actually this case is not relaxed.

https://github.com/llvm/llvm-project/pull/151264