From: Joerg Sonnenberger <joerg@bec.de>
Date: Mon, 7 Mar 2016 17:18:41 +0000 (+0000)
Subject: Describe the magic numbers returned by getEHDataRegisterNumber.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4d0b0706bcc0912e482dd911fb6f3481e5d82a36;p=clang

Describe the magic numbers returned by getEHDataRegisterNumber.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@262837 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/Basic/TargetInfo.h b/include/clang/Basic/TargetInfo.h
index 633f54f797..08595c2e81 100644
--- a/include/clang/Basic/TargetInfo.h
+++ b/include/clang/Basic/TargetInfo.h
@@ -873,6 +873,8 @@ public:
 
   /// \brief Return the register number that __builtin_eh_return_regno would
   /// return with the specified argument.
+  /// This corresponds with TargetLowering's getExceptionPointerRegister
+  /// and getExceptionSelectorRegister in the backend.
   virtual int getEHDataRegisterNumber(unsigned RegNo) const {
     return -1;
   }