MC/Mach-O: Resolve a FIXME; these relocation types are no longer semanticaly different.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98120 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCAssembler.cpp b/lib/MC/MCAssembler.cpp
index b44cd1e..00b02e0 100644
--- a/lib/MC/MCAssembler.cpp
+++ b/lib/MC/MCAssembler.cpp
@@ -462,9 +462,11 @@
llvm_report_error("symbol '" + B->getName() +
"' can not be undefined in a subtraction expression");
- // FIXME: This change of type based on the external bit doesn't make much
- // sense, it seems to be redundant with the other information in the
- // relocation entry.
+ // Select the appropriate difference relocation type.
+ //
+ // Note that there is no longer any semantic difference between these two
+ // relocation types from the linkers point of view, this is done solely
+ // for pedantic compatibility with 'as'.
Type = A_SD->isExternal() ? RIT_Difference : RIT_LocalDifference;
Value2 = B_SD->getFragment()->getAddress() + B_SD->getOffset();
}