except.c: Use rtx_sequence

gcc/
2014-08-27  David Malcolm  <dmalcolm@redhat.com>

	* except.c (can_throw_external): Strengthen local "seq" from rtx
	to rtx_sequence *.  Use methods of rtx_sequence.
	(insn_nothrow_p): Likewise.

From-SVN: r214593

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5ef2cd0a93ffb38f31ba360f60dfbcc39df89bca..16c94db59d35c10e6b1bf69f23affc8ffaaccf72 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2014-08-27  David Malcolm  <dmalcolm@redhat.com>
+
+       * except.c (can_throw_external): Strengthen local "seq" from rtx
+       to rtx_sequence *.  Use methods of rtx_sequence.
+       (insn_nothrow_p): Likewise.
+
 2014-08-27  David Malcolm  <dmalcolm@redhat.com>
 
        * dwarf2cfi.c (create_trace_edges): Convert GET_CODE check into a

diff --git a/gcc/except.c b/gcc/except.c
index 7decba5b14333c102283e6a766f5e3f960e5e056..05da989e32a8bec443ada9ed8a2dc91f723e5a10 100644 (file)
--- a/gcc/except.c
+++ b/gcc/except.c
@@ -1877,11 +1877,11 @@ can_throw_external (const_rtx insn)
   if (NONJUMP_INSN_P (insn)
       && GET_CODE (PATTERN (insn)) == SEQUENCE)
     {
-      rtx seq = PATTERN (insn);
-      int i, n = XVECLEN (seq, 0);
+      rtx_sequence *seq = as_a <rtx_sequence *> (PATTERN (insn));
+      int i, n = seq->len ();
 
       for (i = 0; i < n; i++)
-       if (can_throw_external (XVECEXP (seq, 0, i)))
+       if (can_throw_external (seq->element (i)))
          return true;
 
       return false;
@@ -1921,11 +1921,11 @@ insn_nothrow_p (const_rtx insn)
   if (NONJUMP_INSN_P (insn)
       && GET_CODE (PATTERN (insn)) == SEQUENCE)
     {
-      rtx seq = PATTERN (insn);
-      int i, n = XVECLEN (seq, 0);
+      rtx_sequence *seq = as_a <rtx_sequence *> (PATTERN (insn));
+      int i, n = seq->len ();
 
       for (i = 0; i < n; i++)
-       if (!insn_nothrow_p (XVECEXP (seq, 0, i)))
+       if (!insn_nothrow_p (seq->element (i)))
          return false;
 
       return true;