[llvm] [BOLT][AArch64] Fix ADR relaxation (PR #71835)

[Amir Ayupov via llvm-commits]

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@@ -56,9 +56,13 @@ void ADRRelaxationPass::runOnFunction(BinaryFunction &BF) {
           continue;
       }
 
-      BinaryFunction *TargetBF = BC.getFunctionForSymbol(Symbol);
-      if (TargetBF && TargetBF == &BF)
-        continue;
+      // Don't relax adr if it points to the same function and it is not split
+      // and BF initial size is < 1MB.
+      if (!BF.isSplit() && BF.getSize() < 0x100000) {
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aaupov wrote:

Please avoid magic constants.

https://github.com/llvm/llvm-project/pull/71835