Provide a shortcut for MCObjectStreamer when emitting fills.
Reduces runtime of i386-large-relocations.s by 10x in Release builds, even more
in Debug+Asserts builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164945 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCObjectStreamer.cpp b/lib/MC/MCObjectStreamer.cpp
index 21756cd..4b9acf7 100644
--- a/lib/MC/MCObjectStreamer.cpp
+++ b/lib/MC/MCObjectStreamer.cpp
@@ -270,6 +270,14 @@
DF->getContents().resize(DF->getContents().size() + 8, 0);
}
+void MCObjectStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue,
+ unsigned AddrSpace) {
+ assert(AddrSpace == 0 && "Address space must be 0!");
+ // FIXME: A MCFillFragment would be more memory efficient but MCExpr has
+ // problems evaluating expressions across multiple fragments.
+ getOrCreateDataFragment()->getContents().append(NumBytes, FillValue);
+}
+
void MCObjectStreamer::FinishImpl() {
// Dump out the dwarf file & directory tables and line tables.
const MCSymbol *LineSectionSymbol = NULL;