Try to resolve symbol differences early, and if successful create a plain

data fragment. This reduces the time to assemble the test in 8711 from 60s to
54s.

llvm-svn: 120767

1 files changed, 11 insertions, 0 deletions

diff --git a/llvm/lib/MC/MCStreamer.cpp b/llvm/lib/MC/MCStreamer.cpp
index 7921957f542..9fe719a7fa7 100644
--- a/llvm/lib/MC/MCStreamer.cpp
+++ b/llvm/lib/MC/MCStreamer.cpp
@@ -30,6 +30,17 @@ raw_ostream &MCStreamer::GetCommentOS() {
   return nulls();
 }
 
+void MCStreamer::EmitDwarfSetLineAddr(int64_t LineDelta,
+                                      const MCSymbol *Label, int PointerSize) {
+  // emit the sequence to set the address
+  EmitIntValue(dwarf::DW_LNS_extended_op, 1);
+  EmitULEB128IntValue(PointerSize + 1);
+  EmitIntValue(dwarf::DW_LNE_set_address, 1);
+  EmitSymbolValue(Label, PointerSize);
+
+  // emit the sequence for the LineDelta (from 1) and a zero address delta.
+  MCDwarfLineAddr::Emit(this, LineDelta, 0);
+}
 
 /// EmitIntValue - Special case of EmitValue that avoids the client having to
 /// pass in a MCExpr for constant integers.