Remove incredibly confusing isBaseAddressKnownZero.

When referring to a symbol in a dwarf section on ELF we should use

.long foo

instead of

.long foo - .debug_something

because ELF is unaware of the content of the sections and therefore needs
relocations. This has nothing to do with optimizing a -0.

llvm-svn: 231751

1 files changed, 2 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
index 37434312555..50047c1ab71 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
@@ -179,9 +179,8 @@ void AsmPrinter::EmitSectionOffset(const MCSymbol *Label,
   assert((!Label->isInSection() || &Label->getSection() == &Section) &&
          "Section offset using wrong section base for label");
 
-  // If the section in question will end up with an address of 0 anyway, we can
-  // just emit an absolute reference to save a relocation.
-  if (Section.isBaseAddressKnownZero()) {
+  // If the format uses relocations with dwarf, refer to the symbol directly.
+  if (MAI->doesDwarfUseRelocationsAcrossSections()) {
     OutStreamer.EmitSymbolValue(Label, 4);
     return;
   }