[PATCH] Revert mangling of names with -fprofile-generate=.

[Martin Liška]

Hi.

The patch reverts mangling of filenames due to file
length limitation. Creation of a folder tree seems fine
in context of PGO.

Ready for master?
Thanks,
Martin

gcc/ChangeLog:

2020-02-06  Martin Liska  <mli...@suse.cz>

        PR gcov-profile/91971
        PR gcov-profile/93466
        * coverage.c (coverage_init): Revert mangling of
        path into filename.  It can lead to huge filename length.
        Creation of subfolders seem more natural.
---
 gcc/coverage.c | 8 --------
 1 file changed, 8 deletions(-)



diff --git a/gcc/coverage.c b/gcc/coverage.c
index f29ff640c43..30ae84df90f 100644
--- a/gcc/coverage.c
+++ b/gcc/coverage.c
@@ -1227,14 +1227,6 @@ coverage_init (const char *filename)
       else
 	profile_data_prefix = getpwd ();
     }
-  else if (profile_data_prefix != NULL)
-    {
-      /* when filename is a absolute path, we also need to mangle the full
-      path of filename to prevent the profiling data being stored into a
-      different path than that specified by profile_data_prefix.  */
-      filename = mangle_path (filename);
-      len = strlen (filename);
-    }
 
   if (profile_data_prefix)
     prefix_len = strlen (profile_data_prefix);