diff options
Diffstat (limited to 'llvm/lib/MC/MCAsmStreamer.cpp')
-rw-r--r-- | llvm/lib/MC/MCAsmStreamer.cpp | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/llvm/lib/MC/MCAsmStreamer.cpp b/llvm/lib/MC/MCAsmStreamer.cpp index 73d6f046dc2..f1f5a648bbf 100644 --- a/llvm/lib/MC/MCAsmStreamer.cpp +++ b/llvm/lib/MC/MCAsmStreamer.cpp @@ -44,6 +44,13 @@ namespace { virtual void EmitValue(const MCValue &Value, unsigned Size); + virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0, + unsigned ValueSize = 1, + unsigned MaxBytesToEmit = 0); + + virtual void EmitValueToOffset(const MCValue &Offset, + unsigned char Value = 0); + virtual void EmitInstruction(const MCInst &Inst); virtual void Finish(); @@ -144,6 +151,36 @@ void MCAsmStreamer::EmitValue(const MCValue &Value, unsigned Size) { OS << ' ' << Value << '\n'; } +void MCAsmStreamer::EmitValueToAlignment(unsigned ByteAlignment, int64_t Value, + unsigned ValueSize, + unsigned MaxBytesToEmit) { + unsigned Pow2 = Log2_32(ByteAlignment); + assert((1U << Pow2) == ByteAlignment && "Invalid alignment!"); + + switch (ValueSize) { + default: + assert(0 && "Invalid size for machine code value!"); + case 8: + assert(0 && "Unsupported alignment size!"); + case 1: OS << ".p2align"; break; + case 2: OS << ".p2alignw"; break; + case 4: OS << ".p2alignl"; break; + } + + OS << ' ' << Pow2; + + OS << ", " << Value; + if (MaxBytesToEmit) + OS << ", " << MaxBytesToEmit; + OS << '\n'; +} + +void MCAsmStreamer::EmitValueToOffset(const MCValue &Offset, + unsigned char Value) { + // FIXME: Verify that Offset is associated with the current section. + OS << ".org " << Offset << ", " << (unsigned) Value << '\n'; +} + void MCAsmStreamer::EmitInstruction(const MCInst &Inst) { assert(CurSection && "Cannot emit contents before setting section!"); // FIXME: Implement. |