Merge isAbsolute into IsSymbolRefDifferenceFullyResolved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122148 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCObjectWriter.cpp b/lib/MC/MCObjectWriter.cpp
index 6cee76d..e5f5f70 100644
--- a/lib/MC/MCObjectWriter.cpp
+++ b/lib/MC/MCObjectWriter.cpp
@@ -7,7 +7,9 @@
//
//===----------------------------------------------------------------------===//
+#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCObjectWriter.h"
+#include "llvm/MC/MCSymbol.h"
using namespace llvm;
@@ -39,3 +41,22 @@
OS << char(Byte);
} while (Value != 0);
}
+
+bool
+MCObjectWriter::IsSymbolRefDifferenceFullyResolved(const MCAssembler &Asm,
+ const MCSymbolRefExpr *A,
+ const MCSymbolRefExpr *B,
+ bool InSet) const {
+ // Modified symbol references cannot be resolved.
+ if (A->getKind() != MCSymbolRefExpr::VK_None ||
+ B->getKind() != MCSymbolRefExpr::VK_None)
+ return false;
+
+ const MCSymbol &SA = A->getSymbol();
+ const MCSymbol &SB = B->getSymbol();
+ if (SA.isUndefined() || SB.isUndefined())
+ return false;
+
+ // On ELF and COFF A - B is absolute if A and B are in the same section.
+ return &SA.getSection() == &SB.getSection();
+}