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Enable recursive inlining. Reduce inlining threshold

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back to 200; 400 seems to be too high, loses more than
it gains.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62107 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen
2009-01-12 22:11:50 +00:00
parent 486938f7a1
commit cbfdf9644c
3 changed files with 98 additions and 8 deletions
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lib/Transforms/IPO/Inliner.cpp
+5 -5
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@@ -31,8 +31,8 @@ STATISTIC(NumInlined, "Number of functions inlined");
STATISTIC(NumDeleted, "Number of functions deleted because all callers found");
static cl::opt<int>
InlineLimit("inline-threshold", cl::Hidden, cl::init(400),
cl::desc("Control the amount of inlining to perform (default = 400)"));
InlineLimit("inline-threshold", cl::Hidden, cl::init(200),
cl::desc("Control the amount of inlining to perform (default = 200)"));
Inliner::Inliner(void *ID)
: CallGraphSCCPass(ID), InlineThreshold(InlineLimit) {}
@@ -168,8 +168,7 @@ bool Inliner::runOnSCC(const std::vector<CallGraphNode*> &SCC) {
for (unsigned CSi = 0; CSi != CallSites.size(); ++CSi)
if (Function *Callee = CallSites[CSi].getCalledFunction()) {
// Calls to external functions are never inlinable.
if (Callee->isDeclaration() ||
CallSites[CSi].getInstruction()->getParent()->getParent() ==Callee){
if (Callee->isDeclaration()) {
if (SCC.size() == 1) {
std::swap(CallSites[CSi], CallSites.back());
CallSites.pop_back();
@@ -190,7 +189,8 @@ bool Inliner::runOnSCC(const std::vector<CallGraphNode*> &SCC) {
if (InlineCallIfPossible(CS, CG, SCCFunctions,
getAnalysis<TargetData>())) {
// Remove any cached cost info for this caller, as inlining the callee
// has increased the size of the caller.
// has increased the size of the caller (which may be the same as the
// callee).
resetCachedCostInfo(Caller);
// Remove this call site from the list. If possible, use