From: Devang Patel <dpatel@apple.com>
Date: Mon, 17 Mar 2008 23:41:20 +0000 (+0000)
Subject: Update heuritics that estimates cost of call instructions.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b176038f989d98ac9f5f1dc2b52b6ef1723b2b78;p=oota-llvm.git

Update heuritics that estimates cost of call instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48474 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Scalar/LoopUnroll.cpp b/lib/Transforms/Scalar/LoopUnroll.cpp
index ff8ece2aa8c..71a5955b76b 100644
--- a/lib/Transforms/Scalar/LoopUnroll.cpp
+++ b/lib/Transforms/Scalar/LoopUnroll.cpp
@@ -100,6 +100,11 @@ static unsigned ApproximateLoopSize(const Loop *L) {
         // Ignore instructions only used by the loop terminator.
       } else if (isa<DbgInfoIntrinsic>(I)) {
         // Ignore debug instructions
+      } else if (isa<CallInst>(I)) {
+        if (isa<IntrinsicInst>(I))
+          Size = Size + 3;
+        else
+          Size = Size + 10;
       } else {
         ++Size;
       }