A call to a function marked 'noinline' is not an inline candidate. The sole
call site of an intrinsic is also not an inline candidate. While here, make it
more obvious that this code ignores all intrinsics. Noticed by inspection!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147037 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/InlineCost.cpp b/lib/Analysis/InlineCost.cpp
index 7f0b0cc..14bdd40 100644
--- a/lib/Analysis/InlineCost.cpp
+++ b/lib/Analysis/InlineCost.cpp
@@ -63,8 +63,8 @@
// Special handling for calls.
if (isa<CallInst>(II) || isa<InvokeInst>(II)) {
- if (isa<DbgInfoIntrinsic>(II))
- continue; // Debug intrinsics don't count as size.
+ if (isa<IntrinsicInst>(II))
+ continue; // Intrinsics have no argument setup and can't be inlined.
ImmutableCallSite CS(cast<Instruction>(II));
@@ -72,7 +72,7 @@
// If a function is both internal and has a single use, then it is
// extremely likely to get inlined in the future (it was probably
// exposed by an interleaved devirtualization pass).
- if (F->hasInternalLinkage() && F->hasOneUse())
+ if (!CS.isNoInline() && F->hasInternalLinkage() && F->hasOneUse())
++NumInlineCandidates;
// If this call is to function itself, then the function is recursive.
@@ -83,7 +83,7 @@
isRecursive = true;
}
- if (!isa<IntrinsicInst>(II) && !callIsSmall(CS.getCalledFunction())) {
+ if (!callIsSmall(CS.getCalledFunction())) {
// Each argument to a call takes on average one instruction to set up.
NumInsts += CS.arg_size();