...

src/codegen.zig

@@ -2338,6 +2338,9 @@ pub const CodeGen = struct {
         const llvm_ty = self.typeToLLVM(target_ty);
         switch (node.data) {
             .int_literal => |lit| {
+                if (target_ty.isFloat()) {
+                    return c.LLVMConstReal(llvm_ty, @floatFromInt(@as(i64, lit.value)));
+                }
                 return c.LLVMConstInt(llvm_ty, @bitCast(@as(i64, lit.value)), 0);
             },
             .float_literal => |lit| {
@@ -4773,6 +4776,15 @@ pub const CodeGen = struct {
                         return entry.ptr;
                     }
                 }
+                // Non-identifier expressions (e.g. field access, tuple element):
+                // generate value, store into temp alloca, return alloca pointer
+                if (node.data != .identifier) {
+                    const val = try self.genExpr(node);
+                    const llvm_ty = c.LLVMTypeOf(val);
+                    const tmp = self.buildEntryBlockAlloca(llvm_ty, "implicit_addr");
+                    _ = c.LLVMBuildStore(self.builder, val, tmp);
+                    return tmp;
+                }
             }
         }