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[StackSafety,NFC] Add debug counters

This commit is contained in:
Vitaly Buka 2020-08-06 05:19:12 -07:00
parent 92dcf12b2f
commit 58b95c9b2b
1 changed files with 15 additions and 1 deletions
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16
llvm/lib/Analysis/StackSafetyAnalysis.cpp
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@ -37,6 +37,15 @@ using namespace llvm;
STATISTIC(NumAllocaStackSafe, "Number of safe allocas");
STATISTIC(NumAllocaTotal, "Number of total allocas");
STATISTIC(NumCombinedCalleeLookupTotal,
"Number of total callee lookups on combined index.");
STATISTIC(NumCombinedCalleeLookupFailed,
"Number of failed callee lookups on combined index.");
STATISTIC(NumModuleCalleeLookupTotal,
"Number of total callee lookups on module index.");
STATISTIC(NumModuleCalleeLookupFailed,
"Number of failed callee lookups on module index.");
static cl::opt<int> StackSafetyMaxIterations("stack-safety-max-iterations",
cl::init(20), cl::Hidden);
@ -638,8 +647,11 @@ void resolveAllCalls(UseInfo<GlobalValue> &Use,
GlobalValueSummary *GVS = getGlobalValueSummary(Index, C.Callee->getGUID());
FunctionSummary *FS = resolveCallee(GVS);
if (!FS)
++NumModuleCalleeLookupTotal;
if (!FS) {
++NumModuleCalleeLookupFailed;
return Use.updateRange(FullSet);
}
const ConstantRange *Found = findParamAccess(*FS, C.ParamNo);
if (!Found)
return Use.updateRange(FullSet);
@ -945,7 +957,9 @@ void llvm::generateParamAccessSummary(ModuleSummaryIndex &Index) {
assert(!Call.Offsets.isFullSet());
FunctionSummary *S = resolveCallee(
Index.findSummaryInModule(Call.Callee, FS->modulePath()));
++NumCombinedCalleeLookupTotal;
if (!S) {
++NumCombinedCalleeLookupFailed;
US.Range = FullSet;
US.Calls.clear();
break;