From 483ee1f14770343122e9fadfffc054a119587dbf Mon Sep 17 00:00:00 2001 From: Joshua Nelson Date: Sun, 26 Jun 2022 06:19:32 -0500 Subject: Add a `-Zdump-drop-tracking-cfg` debugging flag This is useful for debugging drop-tracking; previously, you had to recompile rustc from source and manually add a call to `write_graph_to_file`. This makes the option more discoverable and configurable at runtime. I also took the liberty of making the labels for the CFG nodes much easier to read: previously, they looked like `id(2), local_id: 48`, now they look like ``` expr from_config (hir_id=HirId { owner: DefId(0:10 ~ default_struct_update[79f9]::foo), local_id: 2}) ``` --- compiler/rustc_interface/src/tests.rs | 1 + 1 file changed, 1 insertion(+) (limited to 'compiler/rustc_interface') diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs index 30a29ed6ed3..dd7ef360cc1 100644 --- a/compiler/rustc_interface/src/tests.rs +++ b/compiler/rustc_interface/src/tests.rs @@ -649,6 +649,7 @@ fn test_debugging_options_tracking_hash() { untracked!(dlltool, Some(PathBuf::from("custom_dlltool.exe"))); untracked!(dont_buffer_diagnostics, true); untracked!(dump_dep_graph, true); + untracked!(dump_drop_tracking_cfg, Some("cfg.dot".to_string())); untracked!(dump_mir, Some(String::from("abc"))); untracked!(dump_mir_dataflow, true); untracked!(dump_mir_dir, String::from("abc")); -- cgit 1.4.1-3-g733a5