[misc] Disable the offline cache if printing ir is enabled (#6234)

Issue: fixes #6218

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

taichi/program/program.cpp

@@ -76,6 +76,7 @@ Program::Program(Arch desired_arch) : snode_rw_accessors_bank_(this) {
   // TODO: allow users to run in debug mode without out-of-bound checks
   if (config.debug)
     config.check_out_of_bound = true;
+  offline_cache::disable_offline_cache_if_needed(&config);
 
   profiler = make_profiler(config.arch, config.kernel_profiler);
   if (arch_uses_llvm(config.arch)) {

taichi/util/offline_cache.cpp

@@ -5,6 +5,19 @@ namespace taichi::lang::offline_cache {
 constexpr std::size_t offline_cache_key_length = 65;
 constexpr std::size_t min_mangled_name_length = offline_cache_key_length + 2;
 
+void disable_offline_cache_if_needed(CompileConfig *config) {
+  TI_ASSERT(config);
+  if (config->offline_cache) {
+    if (config->print_preprocessed_ir || config->print_ir ||
+        config->print_accessor_ir) {
+      config->offline_cache = false;
+      TI_WARN(
+          "Disable offline_cache because print_preprocessed_ir or print_ir or "
+          "print_accessor_ir is enabled");
+    }
+  }
+}
+
 std::string get_cache_path_by_arch(const std::string &base_path, Arch arch) {
   std::string subdir;
   if (arch_uses_llvm(arch)) {

taichi/util/offline_cache.h

@@ -13,6 +13,7 @@
 #include "taichi/rhi/arch.h"
 #include "taichi/util/io.h"
 #include "taichi/util/lock.h"
+#include "taichi/program/compile_config.h"
 
 namespace taichi::lang {
 namespace offline_cache {
@@ -286,6 +287,7 @@ class CacheCleaner {
   }
 };
 
+void disable_offline_cache_if_needed(CompileConfig *config);
 std::string get_cache_path_by_arch(const std::string &base_path, Arch arch);
 bool enabled_wip_offline_cache(bool enable_hint);
 std::string mangle_name(const std::string &primal_name, const std::string &key);