re PR middle-end/61141 (c-common.c:1502:1: ICE: in reset_insn_used_flags, at emit...

2014-05-18  John David Anglin  <danglin@gcc.gnu.org>

	PR middle-end/61141
	* emit-rtl.c (reset_all_used_flags): In a sequence, check that
	XVECEXP (pat, 0, i) is an INSN before calling reset_insn_used_flags.
	(verify_rtl_sharing): Likewise.

From-SVN: r211380

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index dd8cd87..e12f2f9 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2014-05-18  John David Anglin  <danglin@gcc.gnu.org>
+
+       PR middle-end/61141
+       * emit-rtl.c (reset_all_used_flags): In a sequence, check that
+       XVECEXP (pat, 0, i) is an INSN before calling reset_insn_used_flags.
+       (verify_rtl_sharing): Likewise.  
+
 2014-06-09  Marc Glisse  <marc.glisse@inria.fr>
 
        PR c++/54442

diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
index ceb072a..80e5b2c 100644 (file)
--- a/gcc/emit-rtl.c
+++ b/gcc/emit-rtl.c
@@ -2719,7 +2719,11 @@ reset_all_used_flags (void)
          {
            gcc_assert (REG_NOTES (p) == NULL);
            for (int i = 0; i < XVECLEN (pat, 0); i++)
-             reset_insn_used_flags (XVECEXP (pat, 0, i));
+             {
+               rtx insn = XVECEXP (pat, 0, i);
+               if (INSN_P (insn))
+                 reset_insn_used_flags (insn);
+             }
          }
       }
 }
@@ -2756,7 +2760,11 @@ verify_rtl_sharing (void)
          verify_insn_sharing (p);
        else
          for (int i = 0; i < XVECLEN (pat, 0); i++)
-           verify_insn_sharing (XVECEXP (pat, 0, i));
+             {
+               rtx insn = XVECEXP (pat, 0, i);
+               if (INSN_P (insn))
+                 verify_insn_sharing (insn);
+             }
       }
 
   reset_all_used_flags ();