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dwarf2cfi.c: Use rtx_sequence

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

	* dwarf2cfi.c (create_trace_edges): Convert GET_CODE check into a
	dyn_cast, strengthening local "seq" from rtx to rtx_sequence *.
	Use methods of rtx_sequence.
	(scan_trace): Likewise for local "pat".

From-SVN: r214592
This commit is contained in:
David Malcolm 2014-08-27 19:59:57 +00:00 committed by David Malcolm
parent 84fa8d9c4e
commit 292d1dfba6
2 changed files with 16 additions and 10 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2014-08-27 David Malcolm <dmalcolm@redhat.com>
* dwarf2cfi.c (create_trace_edges): Convert GET_CODE check into a
dyn_cast, strengthening local "seq" from rtx to rtx_sequence *.
Use methods of rtx_sequence.
(scan_trace): Likewise for local "pat".
2014-08-27 David Malcolm <dmalcolm@redhat.com>
* coretypes.h (class rtx_sequence): Add forward declaration.

19
gcc/dwarf2cfi.c
View File

@ -2341,12 +2341,11 @@ create_trace_edges (rtx insn)
for (lab = nonlocal_goto_handler_labels; lab; lab = XEXP (lab, 1))
maybe_record_trace_start_abnormal (XEXP (lab, 0), insn);
}
else if (GET_CODE (PATTERN (insn)) == SEQUENCE)
else if (rtx_sequence *seq = dyn_cast <rtx_sequence *> (PATTERN (insn)))
{
rtx seq = PATTERN (insn);
int i, n = XVECLEN (seq, 0);
int i, n = seq->len ();
for (i = 0; i < n; ++i)
create_trace_edges (XVECEXP (seq, 0, i));
create_trace_edges (seq->insn (i));
return;
}
@ -2421,12 +2420,12 @@ scan_trace (dw_trace_info *trace)
/* Handle all changes to the row state. Sequences require special
handling for the positioning of the notes. */
if (GET_CODE (PATTERN (insn)) == SEQUENCE)
if (rtx_sequence *pat = dyn_cast <rtx_sequence *> (PATTERN (insn)))
{
rtx elt, pat = PATTERN (insn);
int i, n = XVECLEN (pat, 0);
rtx elt;
int i, n = pat->len ();
control = XVECEXP (pat, 0, 0);
control = pat->element (0);
if (can_throw_internal (control))
notice_eh_throw (control);
dwarf2out_flush_queued_reg_saves ();
@ -2438,7 +2437,7 @@ scan_trace (dw_trace_info *trace)
gcc_assert (!RTX_FRAME_RELATED_P (control));
gcc_assert (!find_reg_note (control, REG_ARGS_SIZE, NULL));
elt = XVECEXP (pat, 0, 1);
elt = pat->element (1);
if (INSN_FROM_TARGET_P (elt))
{
@ -2493,7 +2492,7 @@ scan_trace (dw_trace_info *trace)
for (i = 1; i < n; ++i)
{
elt = XVECEXP (pat, 0, i);
elt = pat->element (i);
scan_insn_after (elt);
}