new file mode 100644
@@ -0,0 +1,7 @@
+/* { dg-do compile } */
+/* { dg-options "-fcallgraph-info" } */
+
+void f() {}
+void g() __attribute__ ((__alias__ ("f")));
+
+/* { dg-final { scan-dump-times "ci" "triangle" 1 "ci" {{}} } } */
@@ -37,6 +37,10 @@ proc dump-base { args } {
# gcc-defs to base compilation dumps only on the source basename.
set dumpbase $src
if { [string length $dumpbase_suf] != 0 } {
+ # Accept {} as dump base suffix to drop the source suffix entirely.
+ if { "$dumpbase_suf" == "{}" } {
+ set dumpbase_suf ""
+ }
regsub {[.][^.]*$} $src $dumpbase_suf dumpbase
}
return $dumpbase
@@ -914,6 +914,37 @@ dump_final_callee_vcg (FILE *f, location_t location, tree callee)
fputs ("\" }\n", f);
}
+/* Callback for cgraph_node::call_for_symbol_thunks_and_aliases to dump to F_ a
+ node and an edge from ALIAS->DECL to CURRENT_FUNCTION_DECL. */
+
+static bool
+dump_final_alias_vcg (cgraph_node *alias, void *f_)
+{
+ FILE *f = (FILE *)f_;
+
+ if (alias->decl == current_function_decl)
+ return false;
+
+ dump_final_node_vcg_start (f, alias->decl);
+ fputs ("\" shape : triangle }\n", f);
+
+ fputs ("edge: { sourcename: \"", f);
+ print_decl_identifier (f, alias->decl, PRINT_DECL_UNIQUE_NAME);
+ fputs ("\" targetname: \"", f);
+ print_decl_identifier (f, current_function_decl, PRINT_DECL_UNIQUE_NAME);
+ location_t location = DECL_SOURCE_LOCATION (alias->decl);
+ if (LOCATION_LOCUS (location) != UNKNOWN_LOCATION)
+ {
+ expanded_location loc;
+ fputs ("\" label: \"", f);
+ loc = expand_location (location);
+ fprintf (f, "%s:%d:%d", loc.file, loc.line, loc.column);
+ }
+ fputs ("\" }\n", f);
+
+ return false;
+}
+
/* Dump final cgraph node in VCG format. */
static void
@@ -950,6 +981,12 @@ dump_final_node_vcg (FILE *f)
dump_final_callee_vcg (f, c->location, c->decl);
vec_free (cfun->su->callees);
cfun->su->callees = NULL;
+
+ cgraph_node *node = cgraph_node::get (current_function_decl);
+ if (!node)
+ return;
+ node->call_for_symbol_thunks_and_aliases (dump_final_alias_vcg, f,
+ true, false);
}
/* Output stack usage and callgraph info, as requested. */
Dump ICF-unified decls, thunks, aliases and whatnot along with their ultimate targets, with edges from the alias to the target. Add support for dropping the source file's suffix when forming from dump-base, so that auxiliary files can be scanned, such as the .ci files generated by -fcallgraph-info, as in the testcase. Regstrapped on x86_64-linux-gnu. Ok to install? for gcc/ChangeLog * toplev.cc (dump_final_alias_vcg): New. (dump_final_node_vcg): Dump aliases along with node. for gcc/testsuite/ChangeLog * lib/scandump.exp (dump-base): Support {} in dump base suffix to drop it. * gcc.dg/callgraph-info-1.c: New. --- gcc/testsuite/gcc.dg/callgraph-info-1.c | 7 ++++++ gcc/testsuite/lib/scandump.exp | 4 +++ gcc/toplev.cc | 37 +++++++++++++++++++++++++++++++ 3 files changed, 48 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/callgraph-info-1.c