Darwin assembler improved relocs when w/o subsections_via_symbols.
When the file isn't being built with subsections-via-symbols, symbol
differences involving non-local symbols can be resolved more aggressively.
Needed for gas compatibility.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146054 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MachObjectWriter.cpp b/lib/MC/MachObjectWriter.cpp
index 6e72011..e016f09 100644
--- a/lib/MC/MachObjectWriter.cpp
+++ b/lib/MC/MachObjectWriter.cpp
@@ -584,9 +584,14 @@
// requires the compiler to use .set to absolutize the differences between
// symbols which the compiler knows to be assembly time constants, so we
// don't need to worry about considering symbol differences fully resolved.
+ //
+ // If the file isn't using sub-sections-via-symbols, we can make the
+ // same assumptions about any symbol that we normally make about
+ // assembler locals.
if (!Asm.getBackend().hasReliableSymbolDifference()) {
- if (!SA.isTemporary() || !SA.isInSection() || &SecA != &SecB)
+ if ((!SA.isTemporary() && Asm.getSubsectionsViaSymbols()) ||
+ !SA.isInSection() || &SecA != &SecB)
return false;
return true;
}