Shrink points-to analysis dumps when not dumping with -details

The following allows to get PTA stats with -stats without blowing
up your filesystem by guarding constraint and solution dumping
with TDF_DETAILS and the SSA points-to info with TDF_DETAILS
or TDF_ALIAS.

	* tree-ssa-structalias.cc (dump_sa_stats): Split out from...
	(dump_sa_points_to_info): ... this function.
	(compute_points_to_sets): Guard large dumps with TDF_DETAILS,
	and call dump_sa_stats guarded with TDF_STATS.
	(ipa_pta_execute): Likewise.
	(compute_may_aliases): Guard dump_alias_info with
	TDF_DETAILS|TDF_ALIAS.

	* gcc.dg/ipa/ipa-pta-16.c: Use -details for dump.
	* gcc.dg/tm/alias-1.c: Likewise.
	* gcc.dg/tm/alias-2.c: Likewise.
	* gcc.dg/torture/ipa-pta-1.c: Likewise.
	* gcc.dg/torture/pr39074-2.c: Likewise.
	* gcc.dg/torture/pr39074.c: Likewise.
	* gcc.dg/torture/pta-callused-1.c: Likewise.
	* gcc.dg/torture/pta-escape-1.c: Likewise.
	* gcc.dg/torture/pta-ptrarith-1.c: Likewise.
	* gcc.dg/torture/pta-ptrarith-2.c: Likewise.
	* gcc.dg/torture/pta-ptrarith-3.c: Likewise.
	* gcc.dg/torture/pta-structcopy-1.c: Likewise.
	* gcc.dg/torture/ssa-pta-fn-1.c: Likewise.
	* gcc.dg/tree-ssa/alias-19.c: Likewise.
	* gcc.dg/tree-ssa/pta-callused.c: Likewise.
	* gcc.dg/tree-ssa/pta-fp.c: Likewise.
	* gcc.dg/tree-ssa/pta-ptrarith-1.c: Likewise.
	* gcc.dg/tree-ssa/pta-ptrarith-2.c: Likewise.

19 files changed, 53 insertions, 46 deletions

diff --git a/gcc/testsuite/gcc.dg/ipa/ipa-pta-16.c b/gcc/testsuite/gcc.dg/ipa/ipa-pta-16.c
index 83b9cd8..68fa1c9 100644
--- a/gcc/testsuite/gcc.dg/ipa/ipa-pta-16.c
+++ b/gcc/testsuite/gcc.dg/ipa/ipa-pta-16.c
@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-O2 -fno-tree-sra -fipa-pta -fdump-ipa-pta2" } */
+/* { dg-options "-O2 -fno-tree-sra -fipa-pta -fdump-ipa-pta2-details" } */
 
 struct X
 {
diff --git a/gcc/testsuite/gcc.dg/tm/alias-1.c b/gcc/testsuite/gcc.dg/tm/alias-1.c
index 86b3d7a..b90d142 100644
--- a/gcc/testsuite/gcc.dg/tm/alias-1.c
+++ b/gcc/testsuite/gcc.dg/tm/alias-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-fgnu-tm -fdump-tree-ealias -O" } */
+/* { dg-options "-fgnu-tm -fdump-tree-ealias-details -O" } */
 
 typedef __UINTPTR_TYPE__ ptrcast;
 
diff --git a/gcc/testsuite/gcc.dg/tm/alias-2.c b/gcc/testsuite/gcc.dg/tm/alias-2.c
index dd3db94..1967741 100644
--- a/gcc/testsuite/gcc.dg/tm/alias-2.c
+++ b/gcc/testsuite/gcc.dg/tm/alias-2.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-fgnu-tm -fdump-tree-ealias -O" } */
+/* { dg-options "-fgnu-tm -fdump-tree-ealias-details -O" } */
 
 typedef __UINTPTR_TYPE__ ptrcast;
 
diff --git a/gcc/testsuite/gcc.dg/torture/ipa-pta-1.c b/gcc/testsuite/gcc.dg/torture/ipa-pta-1.c
index 30156a3..fdac819 100644
--- a/gcc/testsuite/gcc.dg/torture/ipa-pta-1.c
+++ b/gcc/testsuite/gcc.dg/torture/ipa-pta-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile { target { nonpic || pie_enabled } } } */
-/* { dg-options "-fipa-pta -fdump-ipa-pta2 -fno-ipa-icf" } */
+/* { dg-options "-fipa-pta -fdump-ipa-pta2-details -fno-ipa-icf" } */
 /* { dg-skip-if "" { *-*-* } { "-O0" "-fno-fat-lto-objects" } { "" } } */
 
 struct X { char x; char y; };
diff --git a/gcc/testsuite/gcc.dg/torture/pr39074-2.c b/gcc/testsuite/gcc.dg/torture/pr39074-2.c
index 7286a4f..16c10e8 100644
--- a/gcc/testsuite/gcc.dg/torture/pr39074-2.c
+++ b/gcc/testsuite/gcc.dg/torture/pr39074-2.c
@@ -1,6 +1,6 @@
 /* { dg-do run } */
 /* { dg-require-effective-target stdint_types } */
-/* { dg-options "-fdump-tree-alias" } */
+/* { dg-options "-fdump-tree-alias-details" } */
 /* { dg-skip-if "" { *-*-* } { "-O0" "-fno-fat-lto-objects" } { "" } } */
 
 #include <stdint.h>
diff --git a/gcc/testsuite/gcc.dg/torture/pr39074.c b/gcc/testsuite/gcc.dg/torture/pr39074.c
index 40ecdb9..eec4873 100644
--- a/gcc/testsuite/gcc.dg/torture/pr39074.c
+++ b/gcc/testsuite/gcc.dg/torture/pr39074.c
@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-fdump-tree-alias" } */
+/* { dg-options "-fdump-tree-alias-details" } */
 /* { dg-skip-if "" { *-*-* } { "-O0" "-fno-fat-lto-objects" } { "" } } */
 
 typedef __INTPTR_TYPE__ intptr_t;
diff --git a/gcc/testsuite/gcc.dg/torture/pta-callused-1.c b/gcc/testsuite/gcc.dg/torture/pta-callused-1.c
index 0ca6ac9..36cf02f 100644
--- a/gcc/testsuite/gcc.dg/torture/pta-callused-1.c
+++ b/gcc/testsuite/gcc.dg/torture/pta-callused-1.c
@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-fdump-tree-alias" } */
+/* { dg-options "-fdump-tree-alias-details" } */
 /* { dg-skip-if "" { *-*-* } { "-O0" "-fno-fat-lto-objects" } { "" } } */
 
 volatile int i;
diff --git a/gcc/testsuite/gcc.dg/torture/pta-escape-1.c b/gcc/testsuite/gcc.dg/torture/pta-escape-1.c
index 9172bed..d7e9078 100644
--- a/gcc/testsuite/gcc.dg/torture/pta-escape-1.c
+++ b/gcc/testsuite/gcc.dg/torture/pta-escape-1.c
@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-fdump-tree-alias" } */
+/* { dg-options "-fdump-tree-alias-details" } */
 /* { dg-skip-if "" { *-*-* } { "-O0" "-fno-fat-lto-objects" } { "" } } */
 
 int *p;
diff --git a/gcc/testsuite/gcc.dg/torture/pta-ptrarith-1.c b/gcc/testsuite/gcc.dg/torture/pta-ptrarith-1.c
index 85b6806..a1dcf4f 100644
--- a/gcc/testsuite/gcc.dg/torture/pta-ptrarith-1.c
+++ b/gcc/testsuite/gcc.dg/torture/pta-ptrarith-1.c
@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-fdump-tree-alias" } */
+/* { dg-options "-fdump-tree-alias-details" } */
 /* { dg-skip-if "" { *-*-* } { "-O0" "-fno-fat-lto-objects" } { "" } } */
 
 struct Foo {
diff --git a/gcc/testsuite/gcc.dg/torture/pta-ptrarith-2.c b/gcc/testsuite/gcc.dg/torture/pta-ptrarith-2.c
index 4f5556a..7cda636 100644
--- a/gcc/testsuite/gcc.dg/torture/pta-ptrarith-2.c
+++ b/gcc/testsuite/gcc.dg/torture/pta-ptrarith-2.c
@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-fdump-tree-alias" } */
+/* { dg-options "-fdump-tree-alias-details" } */
 /* { dg-skip-if "" { *-*-* } { "-O0" "-fno-fat-lto-objects" } { "" } } */
 
 struct Foo {
diff --git a/gcc/testsuite/gcc.dg/torture/pta-ptrarith-3.c b/gcc/testsuite/gcc.dg/torture/pta-ptrarith-3.c
index 7082937..7a2b8db 100644
--- a/gcc/testsuite/gcc.dg/torture/pta-ptrarith-3.c
+++ b/gcc/testsuite/gcc.dg/torture/pta-ptrarith-3.c
@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-fdump-tree-alias" } */
+/* { dg-options "-fdump-tree-alias-details" } */
 /* { dg-skip-if "" { *-*-* } { "-O0" "-fno-fat-lto-objects" } { "" } } */
 
 extern void abort (void);
diff --git a/gcc/testsuite/gcc.dg/torture/pta-structcopy-1.c b/gcc/testsuite/gcc.dg/torture/pta-structcopy-1.c
index f9cf892..9c4d680 100644
--- a/gcc/testsuite/gcc.dg/torture/pta-structcopy-1.c
+++ b/gcc/testsuite/gcc.dg/torture/pta-structcopy-1.c
@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-fdump-tree-ealias -Wno-attributes" } */
+/* { dg-options "-fdump-tree-ealias-details -Wno-attributes" } */
 /* { dg-skip-if "" { *-*-* } { "-O0" } { "" } } */
 
 struct X
diff --git a/gcc/testsuite/gcc.dg/torture/ssa-pta-fn-1.c b/gcc/testsuite/gcc.dg/torture/ssa-pta-fn-1.c
index de019a7..3746320 100644
--- a/gcc/testsuite/gcc.dg/torture/ssa-pta-fn-1.c
+++ b/gcc/testsuite/gcc.dg/torture/ssa-pta-fn-1.c
@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-fdump-tree-alias" } */
+/* { dg-options "-fdump-tree-alias-details" } */
 /* { dg-skip-if "" { *-*-* } { "-O0" "-fno-fat-lto-objects" } { "" } } */
 
 extern void abort (void);
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/alias-19.c b/gcc/testsuite/gcc.dg/tree-ssa/alias-19.c
index 330ec00..219db9b 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/alias-19.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/alias-19.c
@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-O2 -fdump-tree-alias" } */
+/* { dg-options "-O2 -fdump-tree-alias-details" } */
 
 const static int a;
 
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pta-callused.c b/gcc/testsuite/gcc.dg/tree-ssa/pta-callused.c
index b9a57d8..c7e96fb 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/pta-callused.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pta-callused.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 --param max-fields-for-field-sensitive=2 -fdump-tree-alias" } */
+/* { dg-options "-O2 --param max-fields-for-field-sensitive=2 -fdump-tree-alias-details" } */
 
 struct Foo {
   int *p, *q;
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pta-fp.c b/gcc/testsuite/gcc.dg/tree-ssa/pta-fp.c
index 1ff007e..59652c3 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/pta-fp.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pta-fp.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */ 
-/* { dg-options "-O2 -fdump-tree-alias" } */
+/* { dg-options "-O2 -fdump-tree-alias-details" } */
 extern double cos (double);
 extern double sin (double);
 double f(double a)
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-1.c b/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-1.c
index b56d589..9e4c0fe 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-1.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -fno-tree-forwprop -fno-tree-ccp -fdump-tree-ealias" } */
+/* { dg-options "-O2 -fno-tree-forwprop -fno-tree-ccp -fdump-tree-ealias-details" } */
 
 extern void abort (void);
 struct X {
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-2.c b/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-2.c
index be06a75..70b432f 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-2.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-2.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -fno-tree-forwprop -fno-tree-ccp -fdump-tree-ealias" } */
+/* { dg-options "-O2 -fno-tree-forwprop -fno-tree-ccp -fdump-tree-ealias-details" } */
 
 extern void abort (void);
 struct X {
diff --git a/gcc/tree-ssa-structalias.cc b/gcc/tree-ssa-structalias.cc
index c3c5bce..fa3a2e4 100644
--- a/gcc/tree-ssa-structalias.cc
+++ b/gcc/tree-ssa-structalias.cc
@@ -7137,33 +7137,33 @@ pt_solutions_intersect (struct pt_solution *pt1, struct pt_solution *pt2)
   return res;
 }
 
+/* Dump stats information to OUTFILE.  */
+
+static void
+dump_sa_stats (FILE *outfile)
+{
+  fprintf (outfile, "Points-to Stats:\n");
+  fprintf (outfile, "Total vars:               %d\n", stats.total_vars);
+  fprintf (outfile, "Non-pointer vars:          %d\n",
+	   stats.nonpointer_vars);
+  fprintf (outfile, "Statically unified vars:  %d\n",
+	   stats.unified_vars_static);
+  fprintf (outfile, "Dynamically unified vars: %d\n",
+	   stats.unified_vars_dynamic);
+  fprintf (outfile, "Iterations:               %d\n", stats.iterations);
+  fprintf (outfile, "Number of edges:          %d\n", stats.num_edges);
+  fprintf (outfile, "Number of implicit edges: %d\n",
+	   stats.num_implicit_edges);
+}
 
 /* Dump points-to information to OUTFILE.  */
 
 static void
 dump_sa_points_to_info (FILE *outfile)
 {
-  unsigned int i;
-
   fprintf (outfile, "\nPoints-to sets\n\n");
 
-  if (dump_flags & TDF_STATS)
-    {
-      fprintf (outfile, "Stats:\n");
-      fprintf (outfile, "Total vars:               %d\n", stats.total_vars);
-      fprintf (outfile, "Non-pointer vars:          %d\n",
-	       stats.nonpointer_vars);
-      fprintf (outfile, "Statically unified vars:  %d\n",
-	       stats.unified_vars_static);
-      fprintf (outfile, "Dynamically unified vars: %d\n",
-	       stats.unified_vars_dynamic);
-      fprintf (outfile, "Iterations:               %d\n", stats.iterations);
-      fprintf (outfile, "Number of edges:          %d\n", stats.num_edges);
-      fprintf (outfile, "Number of implicit edges: %d\n",
-	       stats.num_implicit_edges);
-    }
-
-  for (i = 1; i < varmap.length (); i++)
+  for (unsigned i = 1; i < varmap.length (); i++)
     {
       varinfo_t vi = get_varinfo (i);
       if (!vi->may_have_pointers)
@@ -7544,7 +7544,7 @@ compute_points_to_sets (void)
 	}
     }
 
-  if (dump_file)
+  if (dump_file && (dump_flags & TDF_DETAILS))
     {
       fprintf (dump_file, "Points-to analysis\n\nConstraints:\n\n");
       dump_constraints (dump_file, 0);
@@ -7617,7 +7617,10 @@ compute_points_to_sets (void)
 	BITMAP_FREE (new_delta);
       }
 
-  if (dump_file)
+  if (dump_file && (dump_flags & TDF_STATS))
+    dump_sa_stats (dump_file);
+
+  if (dump_file && (dump_flags & TDF_DETAILS))
     dump_sa_points_to_info (dump_file);
 
   /* Compute the points-to set for ESCAPED used for call-clobber analysis.  */
@@ -8039,7 +8042,8 @@ compute_may_aliases (void)
 		   "because IPA points-to information is available.\n\n");
 
 	  /* But still dump what we have remaining it.  */
-	  dump_alias_info (dump_file);
+	  if (dump_flags & (TDF_DETAILS|TDF_ALIAS))
+	    dump_alias_info (dump_file);
 	}
 
       return 0;
@@ -8051,7 +8055,7 @@ compute_may_aliases (void)
   compute_points_to_sets ();
 
   /* Debugging dumps.  */
-  if (dump_file)
+  if (dump_file && (dump_flags & (TDF_DETAILS|TDF_ALIAS)))
     dump_alias_info (dump_file);
 
   /* Compute restrict-based memory disambiguations.  */
@@ -8312,7 +8316,7 @@ ipa_pta_execute (void)
       fprintf (dump_file, "\n");
     }
 
-  if (dump_file)
+  if (dump_file && (dump_flags & TDF_DETAILS))
     {
       fprintf (dump_file, "Generating generic constraints\n\n");
       dump_constraints (dump_file, from);
@@ -8351,7 +8355,7 @@ ipa_pta_execute (void)
       vi = create_function_info_for (node->decl,
 				     alias_get_name (node->decl), false,
 				     nonlocal_p);
-      if (dump_file
+      if (dump_file && (dump_flags & TDF_DETAILS)
 	  && from != constraints.length ())
 	{
 	  fprintf (dump_file,
@@ -8392,7 +8396,7 @@ ipa_pta_execute (void)
 	vi->is_ipa_escape_point = true;
     }
 
-  if (dump_file
+  if (dump_file && (dump_flags & TDF_DETAILS)
       && from != constraints.length ())
     {
       fprintf (dump_file,
@@ -8449,7 +8453,7 @@ ipa_pta_execute (void)
 	    }
 	}
 
-      if (dump_file)
+      if (dump_file && (dump_flags & TDF_DETAILS))
 	{
 	  fprintf (dump_file, "\n");
 	  dump_constraints (dump_file, from);
@@ -8461,7 +8465,10 @@ ipa_pta_execute (void)
   /* From the constraints compute the points-to sets.  */
   solve_constraints ();
 
-  if (dump_file)
+  if (dump_file && (dump_flags & TDF_STATS))
+    dump_sa_stats (dump_file);
+
+  if (dump_file && (dump_flags & TDF_DETAILS))
     dump_sa_points_to_info (dump_file);
 
   /* Now post-process solutions to handle locals from different