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Allow multiple invokes per landing pad. This (probably) fixes PR1410.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36977 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov
2007-05-10 22:34:59 +00:00
parent c1fe16610a
commit eeb37e0b80
3 changed files with 79 additions and 62 deletions
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29
lib/CodeGen/MachineModuleInfo.cpp
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@ -1669,8 +1669,8 @@ LandingPadInfo &MachineModuleInfo::getOrCreateLandingPadInfo
void MachineModuleInfo::addInvoke(MachineBasicBlock *LandingPad,
unsigned BeginLabel, unsigned EndLabel) {
LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
if (!LP.BeginLabel) LP.BeginLabel = BeginLabel;
LP.EndLabel = EndLabel;
LP.BeginLabels.push_back(BeginLabel);
LP.EndLabels.push_back(EndLabel);
}
/// addLandingPad - Provide the label of a try LandingPad block.
@ -1711,16 +1711,29 @@ void MachineModuleInfo::setIsFilterLandingPad(MachineBasicBlock *LandingPad) {
void MachineModuleInfo::TidyLandingPads() {
for (unsigned i = 0; i != LandingPads.size(); ) {
LandingPadInfo &LandingPad = LandingPads[i];
LandingPad.BeginLabel = MappedLabel(LandingPad.BeginLabel);
LandingPad.EndLabel = MappedLabel(LandingPad.EndLabel);
LandingPad.LandingPadLabel = MappedLabel(LandingPad.LandingPadLabel);
if (!LandingPad.BeginLabel ||
!LandingPad.EndLabel ||
!LandingPad.LandingPadLabel) {
if (!LandingPad.LandingPadLabel) {
LandingPads.erase(LandingPads.begin() + i);
continue;
}
for (unsigned j=0; j != LandingPads[i].BeginLabels.size(); ) {
unsigned BeginLabel = MappedLabel(LandingPad.BeginLabels[j]);
unsigned EndLabel = MappedLabel(LandingPad.EndLabels[j]);
if (!BeginLabel || !EndLabel) {
printf("Tidy: %d, %d, %d\n", BeginLabel, EndLabel, LandingPad.LandingPadLabel);
LandingPad.BeginLabels.erase(LandingPad.BeginLabels.begin() + j);
LandingPad.EndLabels.erase(LandingPad.EndLabels.begin() + j);
continue;
}
LandingPad.BeginLabels[j] = BeginLabel;
LandingPad.EndLabels[j] = EndLabel;
++j;
}
++i;
}