common.opt (fprofile-generate,fprofile-use): Add.

	* common.opt (fprofile-generate,fprofile-use): Add.
	* gcc.c (LINK_COMMAND_SPEC): Arrange -fprofile-generate to imply -lgcov
	* opts.c (profile_arc_flag_set, flag_profile_values_set,
	flag_unroll_loops_set, flag_tracer_set,
	flag_value_profile_transformations_set,
	flag_peel_loops_set): New static variables.
	(common_handle_option): Deal with -fprofile-generate/-fprofile-use
	* invoke.texi (-fprofile-generate, -fprofile-use): Describe.

From-SVN: r74976

1 files changed, 38 insertions, 0 deletions

diff --git a/gcc/opts.c b/gcc/opts.c
index 0497cb0..43cc25d 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -148,6 +148,13 @@ static unsigned int columns = 80;
 /* What to print when a switch has no documentation.  */
 static const char undocumented_msg[] = N_("This switch lacks documentation");
 
+/* Used for bookkeeping on whether user set these flags so
+   -fprofile-use/-fprofile-generate does not use them.  */
+static bool profile_arc_flag_set, flag_profile_values_set;
+static bool flag_unroll_loops_set, flag_tracer_set;
+static bool flag_value_profile_transformations_set;
+static bool flag_peel_loops_set, flag_branch_probabilities_set;
+
 /* Input file names.  */
 const char **in_fnames;
 unsigned num_in_fnames;
@@ -882,6 +889,7 @@ common_handle_option (size_t scode, const char *arg,
       break;
 
     case OPT_fbranch_probabilities:
+      flag_branch_probabilities_set = true;
       flag_branch_probabilities = value;
       break;
 
@@ -1135,6 +1143,7 @@ common_handle_option (size_t scode, const char *arg,
       break;
 
     case OPT_fpeel_loops:
+      flag_peel_loops_set = true;
       flag_peel_loops = value;
       break;
 
@@ -1167,14 +1176,41 @@ common_handle_option (size_t scode, const char *arg,
       break;
 
     case OPT_fprofile_arcs:
+      profile_arc_flag_set = true;
       profile_arc_flag = value;
       break;
 
+    case OPT_fprofile_use:
+      if (!flag_branch_probabilities_set)
+        flag_branch_probabilities = value;
+      if (!flag_profile_values_set)
+        flag_profile_values = value;
+      if (!flag_unroll_loops_set)
+        flag_unroll_loops = value;
+      if (!flag_peel_loops_set)
+        flag_peel_loops = value;
+      if (!flag_tracer_set)
+        flag_tracer = value;
+      if (!flag_value_profile_transformations_set)
+        flag_value_profile_transformations = value;
+      break;
+
+    case OPT_fprofile_generate:
+      if (!profile_arc_flag_set)
+        profile_arc_flag = value;
+      if (!flag_profile_values_set)
+        flag_profile_values = value;
+      if (!flag_value_profile_transformations_set)
+        flag_value_profile_transformations = value;
+      break;
+
     case OPT_fprofile_values:
+      flag_profile_values_set = true;
       flag_profile_values = value;
       break;
 
     case OPT_fvpt:
+      flag_value_profile_transformations_set = value;
       flag_value_profile_transformations = value;
       break;
 
@@ -1358,6 +1394,7 @@ common_handle_option (size_t scode, const char *arg,
       break;
 
     case OPT_ftracer:
+      flag_tracer_set = true;
       flag_tracer = value;
       break;
 
@@ -1378,6 +1415,7 @@ common_handle_option (size_t scode, const char *arg,
       break;
 
     case OPT_funroll_loops:
+      flag_unroll_loops_set = true;
       flag_unroll_loops = value;
       break;