50 /// Compute the actions table and gather the first action index for each landing
56   // The action table follows the call-site table in the LSDA. The individual  in computeActionsTable()
92   unsigned SizeActions = 0; // Total size of all action entries for a function  in computeActionsTable()
101       // Size of one action entry (typeid + next action)  in computeActionsTable()
132         ActionEntry Action = { ValueForTypeID, NextAction, PrevAction };  in computeActionsTable()  local
133         Actions.push_back(Action);  in computeActionsTable()
137       // Record the first action of the landing pad site.  in computeActionsTable()
141     // Information used when creating the call-site table. The action record  in computeActionsTable()
143     // action record, relative to the start of the actions table. This value is  in computeActionsTable()
211 /// containing the call, a non-zero landing pad, and an appropriate action.  The
213 /// the landing pad and the action.  Calls marked 'nounwind' have no entry and
228 //      call-sites following. The action table and type info table will be
319           if (Site.LPad == Prev.LPad && Site.Action == Prev.Action) {  in computeCallSiteTable()
369 ///  2. The action table, in our case, is composed of pairs of type IDs and next
370 ///     action offset.  Starting with the action index from the landing pad
373 ///     pad.  Otherwise the next action is looked up.  This chain is terminated
374 ///     with a next action of zero.  If no type id is found then the frame is
405   // Compute the actions table and gather the first action index for each  in emitExceptionTable()
489   // call-site table (which marks the beginning of the action table).  in emitExceptionTable()
504     // The Action table follows the call-site table. So we emit the  in emitExceptionTable()
535       CallSiteTableSize += 12 + getULEB128Size(S.Action);  in emitExceptionTable()
544       for (const ActionEntry &Action : Actions) {  in emitExceptionTable()  local
545         // Each action entry consists of two SLEB128 fields.  in emitExceptionTable()
546         ActionTableSize += getSLEB128Size(Action.ValueForTypeID) +  in emitExceptionTable()
547                            getSLEB128Size(Action.NextAction);  in emitExceptionTable()
558           + ActionTableSize;         // Action table content.  in emitExceptionTable()
607       // Offset of the first associated action record, relative to the start of  in emitExceptionTable()
608       // the action table. This value is biased by 1 (1 indicates the start of  in emitExceptionTable()
609       // the action table), and 0 indicates that there are no actions.  in emitExceptionTable()
611         if (S.Action == 0)  in emitExceptionTable()
612           Asm->OutStreamer->AddComment("  Action: cleanup");  in emitExceptionTable()
614           Asm->OutStreamer->AddComment("  Action: " +  in emitExceptionTable()
615                                        Twine((S.Action - 1) / 2 + 1));  in emitExceptionTable()
617       Asm->emitULEB128(S.Action);  in emitExceptionTable()
626     // for a given call, the first corresponding action record and corresponding  in emitExceptionTable()
636     //   * The first action record for that call site.  in emitExceptionTable()
665     // end label. This offset is used to find the action table.  in emitExceptionTable()
748         // Offset of the first associated action record, relative to the start  in emitExceptionTable()
749         // of the action table. This value is biased by 1 (1 indicates the start  in emitExceptionTable()
750         // of the action table), and 0 indicates that there are no actions.  in emitExceptionTable()
752           if (S.Action == 0)  in emitExceptionTable()
753             Asm->OutStreamer->AddComment("  On action: cleanup");  in emitExceptionTable()
755             Asm->OutStreamer->AddComment("  On action: " +  in emitExceptionTable()
756                                          Twine((S.Action - 1) / 2 + 1));  in emitExceptionTable()
758         Asm->emitULEB128(S.Action);  in emitExceptionTable()
764   // Emit the Action Table.  in emitExceptionTable()
766   for (const ActionEntry &Action : Actions) {  in emitExceptionTable()  local
768       // Emit comments that decode the action table.  in emitExceptionTable()
769       Asm->OutStreamer->AddComment(">> Action Record " + Twine(++Entry) + " <<");  in emitExceptionTable()
777       if (Action.ValueForTypeID > 0)  in emitExceptionTable()
779                                      Twine(Action.ValueForTypeID));  in emitExceptionTable()
780       else if (Action.ValueForTypeID < 0)  in emitExceptionTable()
782                                      Twine(Action.ValueForTypeID));  in emitExceptionTable()
786     Asm->emitSLEB128(Action.ValueForTypeID);  in emitExceptionTable()
788     // Action Record  in emitExceptionTable()
790       if (Action.Previous == unsigned(-1)) {  in emitExceptionTable()
793         Asm->OutStreamer->AddComment("  Continue to action " +  in emitExceptionTable()
794                                      Twine(Action.Previous + 1));  in emitExceptionTable()
797     Asm->emitSLEB128(Action.NextAction);  in emitExceptionTable()