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generalize this api

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31365 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-11-02 01:39:10 +00:00
parent e6ae14e1f4
commit a74b4a3ddc
1 changed files with 8 additions and 2 deletions
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10
include/llvm/Target/TargetLowering.h
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@ -687,8 +687,14 @@ public:
/// getRegForInlineAsmConstraint - Given a physical register constraint (e.g.
/// {edx}), return the register number and the register class for the
/// register. This should only be used for C_Register constraints. On error,
/// this returns a register number of 0.
/// register.
///
/// Given a register class constraint, like 'r', if this corresponds directly
/// to an LLVM register class, return a register of 0 and the register class
/// pointer.
///
/// This should only be used for C_Register constraints. On error,
/// this returns a register number of 0 and a null register class pointer..
virtual std::pair<unsigned, const TargetRegisterClass*>
getRegForInlineAsmConstraint(const std::string &Constraint,
MVT::ValueType VT) const;