From 375cf52638cc5330abf0fe95dfa63a013a97a5f5 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Wed, 24 Mar 2010 23:07:47 +0000
Subject: [PATCH] add a convenient TargetInstrDesc::getNumImplicitUses/Defs
 method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99446 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Target/TargetInstrDesc.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/include/llvm/Target/TargetInstrDesc.h b/include/llvm/Target/TargetInstrDesc.h
index 9efb6833fb8..adc37e16e45 100644
--- a/include/llvm/Target/TargetInstrDesc.h
+++ b/include/llvm/Target/TargetInstrDesc.h
@@ -204,6 +204,16 @@ public:
     return ImplicitUses;
   }
   
+  /// getNumImplicitUses - Return the number of implicit uses this instruction
+  /// has.
+  unsigned getNumImplicitUses() const {
+    if (ImplicitUses == 0) return 0;
+    unsigned i = 0;
+    for (; ImplicitUses[i]; ++i) /*empty*/;
+    return i;
+  }
+  
+  
   /// getImplicitDefs - Return a list of registers that are potentially
   /// written by any instance of this machine instruction.  For example, on X86,
   /// many instructions implicitly set the flags register.  In this case, they
@@ -218,6 +228,15 @@ public:
     return ImplicitDefs;
   }
   
+  /// getNumImplicitDefs - Return the number of implicit defs this instruction
+  /// has.
+  unsigned getNumImplicitDefs() const {
+    if (ImplicitDefs == 0) return 0;
+    unsigned i = 0;
+    for (; ImplicitDefs[i]; ++i) /*empty*/;
+    return i;
+  }
+  
   /// hasImplicitUseOfPhysReg - Return true if this instruction implicitly
   /// uses the specified physical register.
   bool hasImplicitUseOfPhysReg(unsigned Reg) const {