Add `LLVM_USE_NO_EXTRA_PASSES` build flag

src/llvm_backend_opt.cpp

@@ -1,7 +1,12 @@
+#ifndef LLVM_USE_NO_EXTRA_PASSES
+#define LLVM_USE_NO_EXTRA_PASSES 0
+#endif
+
 #ifndef LLVM_USE_BASIC_PASSES
-#define LLVM_USE_BASIC_PASSES 0
+#define LLVM_USE_BASIC_PASSES LLVM_USE_NO_EXTRA_PASSES
 #endif
 
+
 void lb_populate_function_pass_manager(LLVMPassManagerRef fpm, bool ignore_memcpy_pass, i32 optimization_level) {
 	// NOTE(bill): Treat -opt:3 as if it was -opt:2
 	// TODO(bill): Determine which opt definitions should exist in the first place
@@ -111,6 +116,9 @@ void lb_populate_module_pass_manager(LLVMTargetMachineRef target_machine, LLVMPa
 	if (LLVM_USE_BASIC_PASSES) {
 		optimization_level = 0;
 	}
+	if (LLVM_USE_NO_EXTRA_PASSES) {
+		return;
+	}
 
 	LLVMAddAlwaysInlinerPass(mpm);
 	LLVMAddStripDeadPrototypesPass(mpm);