Simplify caller updating using a CallSite, as

requested by Chris.  While there, do the same
for an existing function committed by someone
called "lattner" :)

llvm-svn: 47273

1 files changed, 4 insertions, 0 deletions

diff --git a/llvm/lib/VMCore/Instructions.cpp b/llvm/lib/VMCore/Instructions.cpp
index b945a5a0dd7..1a4a5ce7258 100644
--- a/llvm/lib/VMCore/Instructions.cpp
+++ b/llvm/lib/VMCore/Instructions.cpp
@@ -27,6 +27,10 @@ using namespace llvm;
 //                            CallSite Class
 //===----------------------------------------------------------------------===//
 
+CallSite::CallSite(Instruction *C) {
+  assert((isa<CallInst>(C) || isa<InvokeInst>(C)) && "Not a call!");
+  I = C;
+}
 unsigned CallSite::getCallingConv() const {
   if (CallInst *CI = dyn_cast<CallInst>(I))
     return CI->getCallingConv();