[llvm] [LoongArch] Support R_LARCH_{ADD, SUB}_ULEB128 for .uleb128 and force relocs when sym is not in section (PR #76433)

[Fangrui Song via llvm-commits]

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@@ -226,21 +259,28 @@ bool LoongArchAsmBackend::handleAddSubRelocations(const MCAsmLayout &Layout,
                                                   uint64_t &FixedValue) const {
   std::pair<MCFixupKind, MCFixupKind> FK;
   uint64_t FixedValueA, FixedValueB;
-  const MCSection &SecA = Target.getSymA()->getSymbol().getSection();
-  const MCSection &SecB = Target.getSymB()->getSymbol().getSection();
-
-  // We need record relocation if SecA != SecB. Usually SecB is same as the
-  // section of Fixup, which will be record the relocation as PCRel. If SecB
-  // is not same as the section of Fixup, it will report error. Just return
-  // false and then this work can be finished by handleFixup.
-  if (&SecA != &SecB)
-    return false;
+  const MCSymbol &SA = Target.getSymA()->getSymbol();
+  const MCSymbol &SB = Target.getSymB()->getSymbol();
 
-  // In SecA == SecB case. If the linker relaxation is enabled, we need record
-  // the ADD, SUB relocations. Otherwise the FixedValue has already been
-  // calculated out in evaluateFixup, return true and avoid record relocations.
-  if (!STI.hasFeature(LoongArch::FeatureRelax))
-    return true;
+  bool force = !SA.isInSection() || !SB.isInSection();
+
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MaskRay wrote:

delete blank line

https://github.com/llvm/llvm-project/pull/76433