* tree-cfg.c (gimple_can_merge_blocks_p): For -O0 don't remove

	any user labels.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@181040 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2a03361..728edbd 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2011-11-06  Jakub Jelinek  <jakub@redhat.com>
+
+       * tree-cfg.c (gimple_can_merge_blocks_p): For -O0 don't remove
+       any user labels.
+
 2011-11-06  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 
        * config/pa/pa.c (pa_hpux_init_libfuncs): Rename to pa_init_libfuncs.

diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c
index 28aea2f..7ec50db 100644 (file)
--- a/gcc/tree-cfg.c
+++ b/gcc/tree-cfg.c
@@ -1454,8 +1454,8 @@ gimple_can_merge_blocks_p (basic_block a, basic_block b)
        break;
       lab = gimple_label_label (stmt);
 
-      /* Do not remove user forced labels.  */
-      if (!DECL_ARTIFICIAL (lab) && FORCED_LABEL (lab))
+      /* Do not remove user forced labels or for -O0 any user labels.  */
+      if (!DECL_ARTIFICIAL (lab) && (!optimize || FORCED_LABEL (lab)))
        return false;
     }