Differential D71315 Diff 234430 llvm/include/llvm/MC/MCStreamer.h

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llvm/include/llvm/MC/MCStreamer.h

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	bool UseAssemblerInfoForParsing;	bool UseAssemblerInfoForParsing;

		/// This is stack of align_branch_boundary directives. Data is pair of
		/// alignment, and target specific instruction kind mask.
		SmallVector<std::pair<unsigned, unsigned>, 4> AlignBranchBoundaryStack;

	protected:	protected:
	MCStreamer(MCContext &Ctx);	MCStreamer(MCContext &Ctx);

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	/// Ends a bundle-locked group.	/// Ends a bundle-locked group.
	virtual void EmitBundleUnlock();	virtual void EmitBundleUnlock();

		/// Enter a new .align_branch_boundary region which allows alignment for
		/// performance of instruction described by the target specific Mask to be
		/// aligned so as no to cross or end at an alignment boundary of 2^Align.
		virtual void EmitPushAlignBranchBoundary(unsigned Align, unsigned Mask) {
		AlignBranchBoundaryStack.push_back(std::make_pair(Align, Mask));
		}

		/// Ends a .align_branch_boundary region.
		virtual void EmitPopAlignBranchBoundary() {
		assert(!AlignBranchBoundaryStack.empty());
		AlignBranchBoundaryStack.pop_back();
		}

		/// Return information on the current .align_branch_boundary region if any,
		/// or None.
		Optional<std::pair<unsigned, unsigned>>
		getCurrentAlignBranchBoundary() const {
		if (AlignBranchBoundaryStack.empty())
		return None;
		return AlignBranchBoundaryStack.back();
		}

	/// If this file is backed by a assembly streamer, this dumps the	/// If this file is backed by a assembly streamer, this dumps the
	/// specified string in the output .s file. This capability is indicated by	/// specified string in the output .s file. This capability is indicated by
	/// the hasRawTextSupport() predicate. By default this aborts.	/// the hasRawTextSupport() predicate. By default this aborts.
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