Further bool lazy eval fixes and proper alloc register preservation

src/Compiler.cpp

@@ -261,7 +261,7 @@ void Compiler::generateQAlloc(QAlloc &q) {
 	append("PUSHL", "$" + to_string(q.size));
 
 	append("CALL", q.count ? "__latte_mem_init_array" : "__latte_mem_init");
-	append("ADDL", "$" + to_string(q.count ? 12 : 8), "%esp");
+	append("ADDL", "$8", "%esp");
 
 	for (auto r = saveRegs.rbegin(); r != saveRegs.rend(); r++) {
 		if (*r != Register(q.loc)) {

src/codeGen/QuadrupleGenerator.cpp

@@ -244,6 +244,7 @@ void QuadrupleGenerator::visitEAnd(EAnd *p) {
 			leftValBlock->quads.pop_back();
 			// could merge basic blocks now, but why bother
 			if (r) {
+				if (labelTrue && r->constExpr && r->val == 1) addQuad<QJump>(labelTrue);
 				lastVar = r->val ? l : r;
 			}
 		} else {
@@ -254,12 +255,10 @@ void QuadrupleGenerator::visitEAnd(EAnd *p) {
 			rightValBlock->append(block);
 			leftValBlock->append(block);
 
-			if (!labelTrue || !labelFalse) {
 			lastVar = alloc();
+			if (!labelTrue || !labelFalse) {
 				block->addPhi(rightValBlock, lastVar, r);
 				block->addPhi(leftValBlock, lastVar, l);
-			} else {
-				lastVar = nullptr;
 			}
 		}
 	}
@@ -287,6 +286,8 @@ void QuadrupleGenerator::visitEOr(EOr *p) {
 			leftValBlock->quads.pop_back();
 			// could merge basic blocks now, but why bother
 			if (r) {
+				// qjump labelFalse if r->constExpr && r->val == 0 && labelFalse
+				if (labelFalse && r->constExpr && r->val == 0) addQuad<QJump>(labelFalse);
 				lastVar = r->val ? r : l;
 			}
 		} else {