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A call to a function marked 'noinline' is not an inline candidate. The sole

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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
This commit is contained in:
Nick Lewycky 2011-12-21 06:06:30 +00:00
parent 8369687576
commit 20aded5912
1 changed files with 4 additions and 4 deletions
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8
lib/Analysis/InlineCost.cpp
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@ -63,8 +63,8 @@ void CodeMetrics::analyzeBasicBlock(const BasicBlock *BB,
// 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 @@ void CodeMetrics::analyzeBasicBlock(const BasicBlock *BB,
// 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 @@ void CodeMetrics::analyzeBasicBlock(const BasicBlock *BB,
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();