[llvm] [BOLT] Check if symbol is in data area of function (PR #160143)

[Asher Dobrescu via llvm-commits]

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@@ -2374,8 +2374,16 @@ BinaryFunction *BinaryContext::getFunctionForSymbol(const MCSymbol *Symbol,
     return nullptr;
 
   BinaryFunction *BF = BFI->second;
-  if (EntryDesc)
+  if (EntryDesc) {
+    const uint64_t Address = BF->getAddress() + Symbol->getOffset();
+    if (BF->isInConstantIsland(Address)) {
+      this->outs() << "BOLT-WARNING: symbol " << Symbol->getName()
+                   << " is in data region of function 0x"
+                   << Twine::utohexstr(BF->getAddress()) << ".\n";
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Asher8118 wrote:

Done.

https://github.com/llvm/llvm-project/pull/160143