add a "MCStreamer::EmitFill" method, and move the default implementation
(which just iteratively emits bytes) to MCStreamer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93888 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/MC/MCStreamer.h b/include/llvm/MC/MCStreamer.h
index 5febed7..6e655a5 100644
--- a/include/llvm/MC/MCStreamer.h
+++ b/include/llvm/MC/MCStreamer.h
@@ -168,6 +168,11 @@
/// match a native machine width.
virtual void EmitValue(const MCExpr *Value, unsigned Size) = 0;
+ /// EmitFill - Emit NumBytes bytes worth of the value specified by
+ /// FillValue. This implements directives such as '.space'.
+ virtual void EmitFill(uint64_t NumBytes, uint8_t FillValue = 0);
+
+
/// EmitValueToAlignment - Emit some number of copies of @param Value until
/// the byte alignment @param ByteAlignment is reached.
///
diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp
index 8a6dcda..e43d941 100644
--- a/lib/MC/MCStreamer.cpp
+++ b/lib/MC/MCStreamer.cpp
@@ -8,6 +8,7 @@
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCExpr.h"
using namespace llvm;
@@ -16,3 +17,11 @@
MCStreamer::~MCStreamer() {
}
+
+/// EmitFill - Emit NumBytes bytes worth of the value specified by
+/// FillValue. This implements directives such as '.space'.
+void MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue) {
+ const MCExpr *E = MCConstantExpr::Create(FillValue, getContext());
+ for (uint64_t i = 0, e = NumBytes; i != e; ++i)
+ EmitValue(E, 1);
+}
diff --git a/tools/llvm-mc/AsmParser.cpp b/tools/llvm-mc/AsmParser.cpp
index 0e7c344..3a57953 100644
--- a/tools/llvm-mc/AsmParser.cpp
+++ b/tools/llvm-mc/AsmParser.cpp
@@ -1041,8 +1041,7 @@
return TokError("invalid number of bytes in '.space' directive");
// FIXME: Sometimes the fill expr is 'nop' if it isn't supplied, instead of 0.
- for (uint64_t i = 0, e = NumBytes; i != e; ++i)
- Out.EmitValue(MCConstantExpr::Create(FillExpr, getContext()), 1);
+ Out.EmitFill(NumBytes, FillExpr);
return false;
}