From 6113b3d32396168f8f390343d426baa9f64e9009 Mon Sep 17 00:00:00 2001 From: Chris Lattner 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) { -- cgit v1.1