Improve the inlining cost function a bit.
Little practical effect.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62908 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/InlineCost.cpp b/lib/Transforms/Utils/InlineCost.cpp
index 8051672..37d2c03 100644
--- a/lib/Transforms/Utils/InlineCost.cpp
+++ b/lib/Transforms/Utils/InlineCost.cpp
@@ -121,9 +121,12 @@
}
// Calls often compile into many machine instructions. Bump up their
- // cost to reflect this.
- if (!isa<IntrinsicInst>(II))
- NumInsts += 5;
+ // cost to reflect this. Allow an extra instruction per parameter.
+ if (!isa<IntrinsicInst>(II)) {
+ for (CallSite::arg_iterator I = CS.arg_begin(), E = CS.arg_end();
+ I != E; ++I)
+ NumInsts ++;
+ }
}
if (const AllocaInst *AI = dyn_cast<AllocaInst>(II)) {