Update inline threshold for current function if the notes say, optimize for size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55745 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/IPO/Inliner.cpp b/lib/Transforms/IPO/Inliner.cpp
index 1c3d5a81f36967a49c58398a2d0be62ae93a8f07..38cb67dddf1d59a351aaab19fbe11a74d6acde56 100644 (file)
--- a/lib/Transforms/IPO/Inliner.cpp
+++ b/lib/Transforms/IPO/Inliner.cpp
@@ -139,8 +139,15 @@ bool Inliner::runOnSCC(const std::vector<CallGraphNode*> &SCC) {
         CallSite CS = CallSites[CSi];
         int InlineCost = getInlineCost(CS);
         float FudgeFactor = getInlineFudgeFactor(CS);
-
-        if (InlineCost >= (int)(InlineThreshold * FudgeFactor)) {
+        
+        int CurrentThreshold = InlineThreshold;
+        Function *Fn = CS.getCaller();
+        if (Fn && (Fn->getNotes() & FN_NOTE_OptimizeForSize)
+            && InlineThreshold != 50) {
+          CurrentThreshold = 50;
+        }
+        
+        if (InlineCost >= (int)(CurrentThreshold * FudgeFactor)) {
           DOUT << "    NOT Inlining: cost=" << InlineCost
                << ", Call: " << *CS.getInstruction();
         } else {