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Provide FMA costs; enable some debug flags

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From-SVN: r167354
This commit is contained in:
Michael Meissner 2010-12-01 20:47:47 +00:00 • committed by Michael Meissner
parent 6399666bfc
commit 2f64ad0f48
2 changed files with 22 additions and 57 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2010-12-01 Michael Meissner <meissner@linux.vnet.ibm.com>
* config/rs6000/rs6000.c (rs6000_option_override_internal): Fix
thinko regarding setting -mno-<xxx> debug switches.
(rs6000_rtx_costs): Add FMA. Delete old rtl based FMA costs.
2010-12-01 Joseph Myers <joseph@codesourcery.com>
* intl.c: Don't include tm.h.

73
gcc/config/rs6000/rs6000.c
View file

@ -3017,14 +3017,15 @@ rs6000_option_override_internal (bool global_init_p)
|| rs6000_cpu == PROCESSOR_PPCE500MC
|| rs6000_cpu == PROCESSOR_PPCE500MC64);
/* Allow debug switches to override the above settings. */
if (TARGET_ALWAYS_HINT > 0)
/* Allow debug switches to override the above settings. These are set to -1
in rs6000.opt to indicate the user hasn't directly set the switch. */
if (TARGET_ALWAYS_HINT >= 0)
rs6000_always_hint = TARGET_ALWAYS_HINT;
if (TARGET_SCHED_GROUPS > 0)
if (TARGET_SCHED_GROUPS >= 0)
rs6000_sched_groups = TARGET_SCHED_GROUPS;
if (TARGET_ALIGN_BRANCH_TARGETS > 0)
if (TARGET_ALIGN_BRANCH_TARGETS >= 0)
rs6000_align_branch_targets = TARGET_ALIGN_BRANCH_TARGETS;
rs6000_sched_restricted_insns_priority
@ -26072,54 +26073,9 @@ rs6000_rtx_costs (rtx x, int code, int outer_code, int *total,
return true;
case PLUS:
if (mode == DFmode)
{
if (GET_CODE (XEXP (x, 0)) == MULT)
{
/* FNMA accounted in outer NEG. */
if (outer_code == NEG)
*total = rs6000_cost->dmul - rs6000_cost->fp;
else
*total = rs6000_cost->dmul;
}
else
*total = rs6000_cost->fp;
}
else if (mode == SFmode)
{
/* FNMA accounted in outer NEG. */
if (outer_code == NEG && GET_CODE (XEXP (x, 0)) == MULT)
*total = 0;
else
*total = rs6000_cost->fp;
}
else
*total = COSTS_N_INSNS (1);
return false;
case MINUS:
if (mode == DFmode)
{
if (GET_CODE (XEXP (x, 0)) == MULT
|| GET_CODE (XEXP (x, 1)) == MULT)
{
/* FNMA accounted in outer NEG. */
if (outer_code == NEG)
*total = rs6000_cost->dmul - rs6000_cost->fp;
else
*total = rs6000_cost->dmul;
}
else
*total = rs6000_cost->fp;
}
else if (mode == SFmode)
{
/* FNMA accounted in outer NEG. */
if (outer_code == NEG && GET_CODE (XEXP (x, 0)) == MULT)
*total = 0;
else
*total = rs6000_cost->fp;
}
if (FLOAT_MODE_P (mode))
*total = rs6000_cost->fp;
else
*total = COSTS_N_INSNS (1);
return false;
@ -26134,20 +26090,23 @@ rs6000_rtx_costs (rtx x, int code, int outer_code, int *total,
else
*total = rs6000_cost->mulsi_const;
}
/* FMA accounted in outer PLUS/MINUS. */
else if ((mode == DFmode || mode == SFmode)
&& (outer_code == PLUS || outer_code == MINUS))
*total = 0;
else if (mode == DFmode)
*total = rs6000_cost->dmul;
else if (mode == SFmode)
*total = rs6000_cost->fp;
else if (FLOAT_MODE_P (mode))
*total = rs6000_cost->dmul;
else if (mode == DImode)
*total = rs6000_cost->muldi;
else
*total = rs6000_cost->mulsi;
return false;
case FMA:
if (mode == SFmode)
*total = rs6000_cost->fp;
else
*total = rs6000_cost->dmul;
break;
case DIV:
case MOD:
if (FLOAT_MODE_P (mode))