SPU LLVM: Avoid sinking stores out of non-loops

rpcs3/Emu/Cell/SPULLVMRecompiler.cpp

@@ -2340,6 +2340,7 @@ public:
 						}
 
 						bool has_gpr_barriers_in_the_way = false;
+						bool potential_loop = false;
 
 						for (auto [a2, b2] : sucs)
 						{
@@ -2351,6 +2352,7 @@ public:
 									break;
 								}
 
+								potential_loop = true;
 								continue;
 							}
 
@@ -2390,6 +2392,7 @@ public:
 									break;
 								}
 
+								potential_loop = true;
 								continue;
 							}
 
@@ -2424,6 +2427,12 @@ public:
 							continue;
 						}
 
+						if (!potential_loop)
+						{
+							spu_log.trace("Avoided postponing r%u store from block 0x%x (not loop)", i, block_q[bi].first);
+							continue;
+						}
+
 						for (auto [a2, b2] : sucs)
 						{
 							if (b2 != bqbi)