From 6113b3d32396168f8f390343d426baa9f64e9009 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 19 Jan 2010 18:52:28 +0000
Subject: add an MCAsmStreamer::EmitFill specialization of EmitFill that emits
 one directive instead of N.  Not doing this would be a significant regression
 on the # bytes generated by .fill.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93889 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/MC/MCAsmStreamer.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'lib/MC')

diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp
index 4e571ff..317e74d 100644
--- a/lib/MC/MCAsmStreamer.cpp
+++ b/lib/MC/MCAsmStreamer.cpp
@@ -61,6 +61,7 @@ public:
   virtual void EmitBytes(StringRef Data);
 
   virtual void EmitValue(const MCExpr *Value, unsigned Size);
+  virtual void EmitFill(uint64_t NumBytes, uint8_t FillValue);
 
   virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
                                     unsigned ValueSize = 1,
@@ -199,6 +200,20 @@ void MCAsmStreamer::EmitValue(const MCExpr *Value, unsigned Size) {
   OS << ' ' << *truncateToSize(Value, Size) << '\n';
 }
 
+/// EmitFill - Emit NumBytes bytes worth of the value specified by
+/// FillValue.  This implements directives such as '.space'.
+void MCAsmStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue) {
+  if (const char *ZeroDirective = MAI.getZeroDirective()) {
+    OS << ZeroDirective << NumBytes;
+    if (FillValue != 0)
+      OS << ',' << (int)FillValue;
+    OS << '\n';
+  } else {
+    // Emit a byte at a time.
+    MCStreamer::EmitFill(NumBytes, FillValue);
+  }
+}
+
 void MCAsmStreamer::EmitValueToAlignment(unsigned ByteAlignment, int64_t Value,
                                          unsigned ValueSize,
                                          unsigned MaxBytesToEmit) {
-- 
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