Use emplace_* functions where in-place construction is preferable

Source/Core/Core/DSP/LabelMap.cpp

@@ -33,7 +33,7 @@ void LabelMap::RegisterLabel(const std::string &label, u16 lval, LabelType type)
 			   label.c_str(), lval, old_value);
 		DeleteLabel(label);
 	}
-	labels.push_back(label_t(label, lval, type));
+	labels.emplace_back(label, lval, type);
 }
 
 void LabelMap::DeleteLabel(const std::string &label)

Source/Core/Core/HW/GCMemcardDirectory.cpp

@@ -434,7 +434,7 @@ inline s32 GCMemcardDirectory::SaveAreaRW(u32 block, bool writing)
 					int num_blocks = BE16(m_saves[i].m_gci_header.BlockCount);
 					while (num_blocks)
 					{
-						m_saves[i].m_save_data.push_back(GCMBlock());
+						m_saves[i].m_save_data.emplace_back();
 						num_blocks--;
 					}
 				}

Source/Core/Core/PowerPC/Jit64IL/JitIL.cpp

@@ -186,7 +186,7 @@ namespace JitILProfiler
 	static Block& Add(u64 codeHash)
 	{
 		const u32 _blockIndex = (u32)blocks.size();
-		blocks.push_back(Block());
+		blocks.emplace_back();
 		Block& block = blocks.back();
 		block.index = _blockIndex;
 		block.codeHash = codeHash;

Source/Core/Core/PowerPC/JitInterface.cpp

@@ -153,7 +153,7 @@ namespace JitInterface
 			u64 timecost = block->ticCounter;
 			// Todo: tweak.
 			if (block->runCount >= 1)
-				stats.push_back(BlockStat(i, cost));
+				stats.emplace_back(i, cost);
 			cost_sum += cost;
 			timecost_sum += timecost;
 		}

Source/Core/Core/PowerPC/PPCAnalyst.cpp

@@ -175,7 +175,7 @@ bool AnalyzeFunction(u32 startAddr, Symbol &func, int max_size)
 					if (target != INVALID_TARGET && instr.LK)
 					{
 						//we found a branch-n-link!
-						func.calls.push_back(SCall(target,addr));
+						func.calls.emplace_back(target, addr);
 						func.flags &= ~FFLAG_LEAF;
 					}
 				}