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Refactor DebugLocDWARFExpression so it doesn't require access to the

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TargetRegisterInfo. DebugLocEntry now holds a buffer with the raw bytes
of the pre-calculated DWARF expression.

Ought to be NFC, but it does slightly alter the output format of the
textual assembly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230930 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Adrian Prantl
2015-03-02 02:38:18 +00:00
parent 6cad61163a
commit d21acaf6a1
11 changed files with 169 additions and 153 deletions
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23
include/llvm/CodeGen/AsmPrinter.h
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@@ -434,29 +434,6 @@ public:
/// Get the value for DW_AT_APPLE_isa. Zero if no isa encoding specified.
virtual unsigned getISAEncoding(const Function *) { return 0; }
/// Emit a dwarf register operation for describing
/// - a small value occupying only part of a register or
/// - a register representing only part of a value.
void EmitDwarfOpPiece(ByteStreamer &Streamer, unsigned SizeInBits,
unsigned OffsetInBits = 0) const;
/// \brief Emit a partial DWARF register operation.
/// \param MLoc the register
/// \param PieceSize size and
/// \param PieceOffset offset of the piece in bits, if this is one
/// piece of an aggregate value.
///
/// If size and offset is zero an operation for the entire
/// register is emitted: Some targets do not provide a DWARF
/// register number for every register. If this is the case, this
/// function will attempt to emit a DWARF register by emitting a
/// piece of a super-register or by piecing together multiple
/// subregisters that alias the register.
void EmitDwarfRegOpPiece(ByteStreamer &BS, const MachineLocation &MLoc,
unsigned PieceSize = 0,
unsigned PieceOffset = 0) const;
/// EmitDwarfRegOp - Emit a dwarf register operation.
virtual void EmitDwarfRegOp(ByteStreamer &BS,
const MachineLocation &MLoc) const;