From: Duncan Sands <baldrick@free.fr>
Date: Mon, 5 Jan 2009 21:33:06 +0000 (+0000)
Subject: Add a note about passing MVT::Other to getSetCCResultType.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=676b9dfe2f7d7af7c93daac230aaac353e37d59d;p=oota-llvm.git

Add a note about passing MVT::Other to getSetCCResultType.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61756 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h
index 2b26604648f..e6d5ff8621d 100644
--- a/include/llvm/Target/TargetLowering.h
+++ b/include/llvm/Target/TargetLowering.h
@@ -116,8 +116,11 @@ public:
   /// srl/add/sra.
   bool isPow2DivCheap() const { return Pow2DivIsCheap; }
 
-  /// getSetCCResultType - Return the ValueType of the result of setcc
-  /// operations.
+  /// getSetCCResultType - Return the ValueType of the result of SETCC
+  /// operations.  Also used to obtain the target's preferred type for
+  /// the condition operand of SELECT and BRCOND nodes.  In the case of
+  /// BRCOND the argument passed is MVT::Other since there are no other
+  /// operands to get a type hint from.
   virtual MVT getSetCCResultType(MVT VT) const;
 
   /// getBooleanContents - For targets without i1 registers, this gives the