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| author | Xavier Leroy <xavier.leroy@gmail.com> | 2015-09-20 15:23:38 +0200 |
|---|---|---|
| committer | Xavier Leroy <xavier.leroy@gmail.com> | 2015-09-20 15:23:38 +0200 |
| commit | 9147350fdb47f3471ce6d9202b7c996f79ffab2d (patch) | |
| tree | f47977b33fa0975d614cc9bc2e4a22c996a96401 /backend/PrintAsmaux.ml | |
| parent | db0a62a01bbf90617701b68917319767159bf039 (diff) | |
| download | compcert-kvx-9147350fdb47f3471ce6d9202b7c996f79ffab2d.tar.gz compcert-kvx-9147350fdb47f3471ce6d9202b7c996f79ffab2d.zip | |
Experiment: track the scopes of local variables via __builtin_debug.
C2C: the code that insert debug builtins with the line numbers is now
in Unblock. Handle calls to __builtin_debug.
Unblock: generate __builtin_debug(1) for line numbers, carrying
the list of active scopes as extra arguments.
Generate __builtin_debug(6) for local variable declarations,
carrying the corresponding scope number as extra argument.
Constprop: avoid duplicating debug arguments that are constants already.
PrintAsmaux: show this extra debug info as comments.
Diffstat (limited to 'backend/PrintAsmaux.ml')
| -rw-r--r-- | backend/PrintAsmaux.ml | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/backend/PrintAsmaux.ml b/backend/PrintAsmaux.ml index 67e53aea..13daa644 100644 --- a/backend/PrintAsmaux.ml +++ b/backend/PrintAsmaux.ml @@ -269,6 +269,8 @@ let print_debug_info comment print_line print_preg sp_name oc kind txt args = args in match kind with | 1 -> (* line number *) + fprintf oc "%s debug: current scopes%a\n" + comment print_debug_args args; if Str.string_match re_file_line txt 0 then print_line oc (Str.matched_group 1 txt) (int_of_string (Str.matched_group 2 txt)) @@ -283,6 +285,9 @@ let print_debug_info comment print_line print_preg sp_name oc kind txt args = | 5 -> (* local variable preallocated in stack *) fprintf oc "%s debug: %s resides at%a\n" comment txt print_debug_args args + | 6 -> (* declaration of a local variable *) + fprintf oc "%s debug: %s declared in scope%a\n" + comment txt print_debug_args args | _ -> () |