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Diffstat (limited to 'contrib/llvm/include/llvm/MC/MCAsmBackend.h')
-rw-r--r--contrib/llvm/include/llvm/MC/MCAsmBackend.h24
1 files changed, 19 insertions, 5 deletions
diff --git a/contrib/llvm/include/llvm/MC/MCAsmBackend.h b/contrib/llvm/include/llvm/MC/MCAsmBackend.h
index 05e6286b7cc5..72ed1a317c55 100644
--- a/contrib/llvm/include/llvm/MC/MCAsmBackend.h
+++ b/contrib/llvm/include/llvm/MC/MCAsmBackend.h
@@ -30,12 +30,13 @@ class raw_ostream;
/// MCAsmBackend - Generic interface to target specific assembler backends.
class MCAsmBackend {
- MCAsmBackend(const MCAsmBackend &); // DO NOT IMPLEMENT
- void operator=(const MCAsmBackend &); // DO NOT IMPLEMENT
+ MCAsmBackend(const MCAsmBackend &) LLVM_DELETED_FUNCTION;
+ void operator=(const MCAsmBackend &) LLVM_DELETED_FUNCTION;
protected: // Can only create subclasses.
MCAsmBackend();
unsigned HasReliableSymbolDifference : 1;
+ unsigned HasDataInCodeSupport : 1;
public:
virtual ~MCAsmBackend();
@@ -65,6 +66,12 @@ public:
return HasReliableSymbolDifference;
}
+ /// hasDataInCodeSupport - Check whether this target implements data-in-code
+ /// markers. If not, data region directives will be ignored.
+ bool hasDataInCodeSupport() const {
+ return HasDataInCodeSupport;
+ }
+
/// doesSectionRequireSymbols - Check whether the given section requires that
/// all symbols (even temporaries) have symbol table entries.
virtual bool doesSectionRequireSymbols(const MCSection &Section) const {
@@ -99,7 +106,7 @@ public:
/// @}
- /// applyFixup - Apply the \arg Value for given \arg Fixup into the provided
+ /// applyFixup - Apply the \p Value for given \p Fixup into the provided
/// data fragment, at the offset specified by the fixup and following the
/// fixup kind as appropriate.
virtual void applyFixup(const MCFixup &Fixup, char *Data, unsigned DataSize,
@@ -126,13 +133,20 @@ public:
/// RelaxInstruction - Relax the instruction in the given fragment to the next
/// wider instruction.
///
- /// \param Inst - The instruction to relax, which may be the same as the
+ /// \param Inst The instruction to relax, which may be the same as the
/// output.
- /// \parm Res [output] - On return, the relaxed instruction.
+ /// \param [out] Res On return, the relaxed instruction.
virtual void relaxInstruction(const MCInst &Inst, MCInst &Res) const = 0;
/// @}
+ /// getMinimumNopSize - Returns the minimum size of a nop in bytes on this
+ /// target. The assembler will use this to emit excess padding in situations
+ /// where the padding required for simple alignment would be less than the
+ /// minimum nop size.
+ ///
+ virtual unsigned getMinimumNopSize() const { return 1; }
+
/// writeNopData - Write an (optimal) nop sequence of Count bytes to the given
/// output. If the target cannot generate such a sequence, it should return an
/// error.