Add a method for inline asm support.

llvm-svn: 25656

1 files changed, 11 insertions, 0 deletions

diff --git a/llvm/include/llvm/Target/TargetLowering.h b/llvm/include/llvm/Target/TargetLowering.h
index e93bc2331d8..b2524d5b710 100644
--- a/llvm/include/llvm/Target/TargetLowering.h
+++ b/llvm/include/llvm/Target/TargetLowering.h
@@ -391,6 +391,17 @@ public:
                                               uint64_t Mask) const;
 
   //===--------------------------------------------------------------------===//
+  // Inline Asm Support hooks
+  //
+  
+  /// getRegForInlineAsmConstraint - Given a constraint letter or register
+  /// name (e.g. "r" or "edx"), return a list of registers that can be used to
+  /// satisfy the constraint.  If the constraint isn't supported, or isn't a
+  /// register constraint, return an empty list.
+  virtual std::vector<unsigned> 
+  getRegForInlineAsmConstraint(const std::string &Constraint) const;
+  
+  //===--------------------------------------------------------------------===//
   // Scheduler hooks
   //