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alpha: Consider barriers when placing nops after sibcalls 

* config/alpha/alpha.c (alpha_pad_function_end): Consider barriers
        when looking for NOTE_INSN_CALL_ARG_LOCATION.

From-SVN: r194484
This commit is contained in:
Richard Henderson 2012-12-13 11:31:06 -08:00 committed by Richard Henderson
parent 3deafb32c6
commit e1df04775d
2 changed files with 17 additions and 9 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2012-12-13 Richard Henderson <rth@redhat.com>
* config/alpha/alpha.c (alpha_pad_function_end): Consider barriers
when looking for NOTE_INSN_CALL_ARG_LOCATION.
2012-12-13 Richard Biener <rguenther@suse.de>
PR middle-end/53476

21
gcc/config/alpha/alpha.c
View File

@ -9253,23 +9253,26 @@ alpha_pad_function_end (void)
for (insn = get_insns (); insn; insn = NEXT_INSN (insn))
{
if (! (CALL_P (insn)
&& (SIBLING_CALL_P (insn)
|| find_reg_note (insn, REG_NORETURN, NULL_RTX))))
if (!CALL_P (insn)
|| !(SIBLING_CALL_P (insn)
|| find_reg_note (insn, REG_NORETURN, NULL_RTX)))
continue;
/* Make sure we do not split a call and its corresponding
CALL_ARG_LOCATION note. */
if (CALL_P (insn))
next = NEXT_INSN (insn);
if (next == NULL)
continue;
if (BARRIER_P (next))
{
next = NEXT_INSN (insn);
if (next && NOTE_P (next)
&& NOTE_KIND (next) == NOTE_INSN_CALL_ARG_LOCATION)
insn = next;
next = NEXT_INSN (next);
if (next == NULL)
continue;
}
if (NOTE_P (next) && NOTE_KIND (next) == NOTE_INSN_CALL_ARG_LOCATION)
insn = next;
next = next_active_insn (insn);
if (next)
{
rtx pat = PATTERN (next);