Add r122359 back now that the bug in MCDwarfLineAddrFragment fragment has been

fixed.

llvm-svn: 122448

1 files changed, 5 insertions, 19 deletions

diff --git a/llvm/lib/MC/MCExpr.cpp b/llvm/lib/MC/MCExpr.cpp
index 8fdf8378333..58f2e94dd62 100644
--- a/llvm/lib/MC/MCExpr.cpp
+++ b/llvm/lib/MC/MCExpr.cpp
@@ -269,27 +269,13 @@ bool MCExpr::EvaluateAsAbsolute(int64_t &Res, const MCAssembler *Asm,
   // FIXME: The use if InSet = Addrs is a hack. Setting InSet causes us
   // absolutize differences across sections and that is what the MachO writer
   // uses Addrs for.
-  if (!EvaluateAsRelocatableImpl(Value, Asm, Layout, Addrs, /*InSet*/ Addrs) ||
-      !Value.isAbsolute()) {
-    // EvaluateAsAbsolute is defined to return the "current value" of
-    // the expression if we are given a Layout object, even in cases
-    // when the value is not fixed.
-    if (Layout) {
-      Res = Value.getConstant();
-      if (Value.getSymA()) {
-       Res += Layout->getSymbolOffset(
-          &Layout->getAssembler().getSymbolData(Value.getSymA()->getSymbol()));
-      }
-      if (Value.getSymB()) {
-       Res -= Layout->getSymbolOffset(
-          &Layout->getAssembler().getSymbolData(Value.getSymB()->getSymbol()));
-      }
-    }
-    return false;
-  }
+  bool IsRelocatable =
+    EvaluateAsRelocatableImpl(Value, Asm, Layout, Addrs, /*InSet*/ Addrs);
 
+  // Record the current value.
   Res = Value.getConstant();
-  return true;
+
+  return IsRelocatable && Value.isAbsolute();
 }
 
 /// \brief Helper method for \see EvaluateSymbolAdd().