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sched-deps.c (get_condition): Rewrite using jump support functions. 

* sched-deps.c (get_condition): Rewrite using jump support functions.
Use reversed_comparison_code.
(conditions_mutex_p): Use reversed_comparison_code.

From-SVN: r86736
This commit is contained in:
Richard Earnshaw 2004-08-29 21:07:37 +00:00 committed by Richard Earnshaw
parent ea9bfbf28f
commit 6903ecd491
2 changed files with 22 additions and 14 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2004-08-29 Richard Earnshaw <rearnsha@arm.com>
* sched-deps.c (get_condition): Rewrite using jump support functions.
Use reversed_comparison_code.
(conditions_mutex_p): Use reversed_comparison_code.
2004-08-29 Richard Sandiford <rsandifo@redhat.com>
* config/mips/mips.c (override_options): Disable hot/cold partitioning

30
gcc/sched-deps.c
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@ -145,23 +145,25 @@ get_condition (rtx insn)
if (pat == 0)
return 0;
if (GET_CODE (pat) == COND_EXEC)
return COND_EXEC_TEST (pat);
if (!JUMP_P (insn))
if (!any_condjump_p (insn) || !onlyjump_p (insn))
return 0;
if (GET_CODE (pat) != SET || SET_SRC (pat) != pc_rtx)
return 0;
if (GET_CODE (SET_DEST (pat)) != IF_THEN_ELSE)
return 0;
pat = SET_DEST (pat);
cond = XEXP (pat, 0);
if (GET_CODE (XEXP (cond, 1)) == LABEL_REF
&& XEXP (cond, 2) == pc_rtx)
cond = XEXP (SET_SRC (pc_set (insn)), 0);
if (XEXP (cond, 2) == pc_rtx)
return cond;
else if (GET_CODE (XEXP (cond, 2)) == LABEL_REF
&& XEXP (cond, 1) == pc_rtx)
return gen_rtx_fmt_ee (reverse_condition (GET_CODE (cond)), GET_MODE (cond),
XEXP (cond, 0), XEXP (cond, 1));
else if (XEXP (cond, 1) == pc_rtx)
{
enum rtx_code revcode = reversed_comparison_code (cond, insn);
if (revcode == UNKNOWN)
return 0;
return gen_rtx_fmt_ee (revcode, GET_MODE (cond), XEXP (cond, 0),
XEXP (cond, 1));
}
else
return 0;
}
@ -173,7 +175,7 @@ conditions_mutex_p (rtx cond1, rtx cond2)
{
if (COMPARISON_P (cond1)
&& COMPARISON_P (cond2)
&& GET_CODE (cond1) == reverse_condition (GET_CODE (cond2))
&& GET_CODE (cond1) == reversed_comparison_code (cond2, NULL)
&& XEXP (cond1, 0) == XEXP (cond2, 0)
&& XEXP (cond1, 1) == XEXP (cond2, 1))
return 1;