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| author | Ian Lance Taylor <ian@gcc.gnu.org> | 2019-04-09 04:36:51 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2019-04-09 04:36:51 +0000 |
| commit | 3fa176b767e14e1d2491775978afac3e87892d1d (patch) | |
| tree | 35478f4f4ff092374f748479debcda06b96dd6dd /gcc | |
| parent | ad7d66abe909d867c032019b18a4ef20f22af368 (diff) | |
| download | gcc-3fa176b767e14e1d2491775978afac3e87892d1d.zip gcc-3fa176b767e14e1d2491775978afac3e87892d1d.tar.gz gcc-3fa176b767e14e1d2491775978afac3e87892d1d.tar.bz2 | |
compiler: sort packages in export data more deterministically
We can have multiple packages with the same name, so also sort by pkgpath.
To avoid an inconsistent sort, sort by symbol and pointer address if
we somehow get two different packages with the same name and pkgpath.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/171032
From-SVN: r270220
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/go/gofrontend/MERGE | 2 | ||||
| -rw-r--r-- | gcc/go/gofrontend/export.cc | 19 |
2 files changed, 19 insertions, 2 deletions
diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE index 1e4da03..74e811b 100644 --- a/gcc/go/gofrontend/MERGE +++ b/gcc/go/gofrontend/MERGE @@ -1,4 +1,4 @@ -a69f7c05f1880bb90544fb0c3577109cb1d7f3ab +8822487ed776d55eafed44de7d89ee54bbfbab47 The first line of this file holds the git revision number of the last merge done from the gofrontend repository. diff --git a/gcc/go/gofrontend/export.cc b/gcc/go/gofrontend/export.cc index 963f0bf..066455a 100644 --- a/gcc/go/gofrontend/export.cc +++ b/gcc/go/gofrontend/export.cc @@ -509,7 +509,24 @@ Export::set_type_index(Type* type) static bool packages_compare(const Package* a, const Package* b) { - return a->package_name() < b->package_name(); + if (a->package_name() < b->package_name()) + return true; + else if (a->package_name() > b->package_name()) + return false; + + if (a->pkgpath() < b->pkgpath()) + return true; + else if (a->pkgpath() > b->pkgpath()) + return false; + + // In principle if we get here then a == b. Try to do something sensible + // even if the import information is inconsistent. + if (a->pkgpath_symbol() < b->pkgpath_symbol()) + return true; + else if (a->pkgpath_symbol() > b->pkgpath_symbol()) + return false; + + return a < b; } // Write out all the known packages whose pkgpath symbol is not a |