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EH: Sink computation of local PadMap variable into function that uses it

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No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224635 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Kleckner
2014-12-19 22:30:08 +00:00
parent 74430387cd
commit b60b7360f5
2 changed files with 15 additions and 17 deletions
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31
lib/CodeGen/AsmPrinter/EHStreamer.cpp
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@ -195,9 +195,22 @@ bool EHStreamer::callToNoUnwindFunction(const MachineInstr *MI) {
/// table. Entries must be ordered by try-range address. /// table. Entries must be ordered by try-range address.
void EHStreamer:: void EHStreamer::
computeCallSiteTable(SmallVectorImpl<CallSiteEntry> &CallSites, computeCallSiteTable(SmallVectorImpl<CallSiteEntry> &CallSites,
const RangeMapType &PadMap,
const SmallVectorImpl<const LandingPadInfo *> &LandingPads, const SmallVectorImpl<const LandingPadInfo *> &LandingPads,
const SmallVectorImpl<unsigned> &FirstActions) { const SmallVectorImpl<unsigned> &FirstActions) {
// Invokes and nounwind calls have entries in PadMap (due to being bracketed
// by try-range labels when lowered). Ordinary calls do not, so appropriate
// try-ranges for them need be deduced so we can put them in the LSDA.
RangeMapType PadMap;
for (unsigned i = 0, N = LandingPads.size(); i != N; ++i) {
const LandingPadInfo *LandingPad = LandingPads[i];
for (unsigned j = 0, E = LandingPad->BeginLabels.size(); j != E; ++j) {
MCSymbol *BeginLabel = LandingPad->BeginLabels[j];
assert(!PadMap.count(BeginLabel) && "Duplicate landing pad labels!");
PadRange P = { i, j };
PadMap[BeginLabel] = P;
}
}
// The end label of the previous invoke or nounwind try-range. // The end label of the previous invoke or nounwind try-range.
MCSymbol *LastLabel = nullptr; MCSymbol *LastLabel = nullptr;
@ -340,23 +353,9 @@ void EHStreamer::emitExceptionTable() {
unsigned SizeActions = unsigned SizeActions =
computeActionsTable(LandingPads, Actions, FirstActions); computeActionsTable(LandingPads, Actions, FirstActions);
// Invokes and nounwind calls have entries in PadMap (due to being bracketed
// by try-range labels when lowered). Ordinary calls do not, so appropriate
// try-ranges for them need be deduced when using DWARF exception handling.
RangeMapType PadMap;
for (unsigned i = 0, N = LandingPads.size(); i != N; ++i) {
const LandingPadInfo *LandingPad = LandingPads[i];
for (unsigned j = 0, E = LandingPad->BeginLabels.size(); j != E; ++j) {
MCSymbol *BeginLabel = LandingPad->BeginLabels[j];
assert(!PadMap.count(BeginLabel) && "Duplicate landing pad labels!");
PadRange P = { i, j };
PadMap[BeginLabel] = P;
}
}
// Compute the call-site table. // Compute the call-site table.
SmallVector<CallSiteEntry, 64> CallSites; SmallVector<CallSiteEntry, 64> CallSites;
computeCallSiteTable(CallSites, PadMap, LandingPads, FirstActions); computeCallSiteTable(CallSites, LandingPads, FirstActions);
// Final tallies. // Final tallies.

1
lib/CodeGen/AsmPrinter/EHStreamer.h
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@ -86,7 +86,6 @@ protected:
/// form gaps in the table. Entries must be ordered by try-range address. /// form gaps in the table. Entries must be ordered by try-range address.
void computeCallSiteTable(SmallVectorImpl<CallSiteEntry> &CallSites, void computeCallSiteTable(SmallVectorImpl<CallSiteEntry> &CallSites,
const RangeMapType &PadMap,
const SmallVectorImpl<const LandingPadInfo *> &LPs, const SmallVectorImpl<const LandingPadInfo *> &LPs,
const SmallVectorImpl<unsigned> &FirstActions); const SmallVectorImpl<unsigned> &FirstActions);