On 05/17/2011 09:10 AM, Tom de Vries wrote:
> Hi Zdenek,
>
> I have a patch set for for PR45098.
>
> 01_object-size-target.patch
> 02_pr45098-rtx-cost-set.patch
> 03_pr45098-computation-cost.patch
> 04_pr45098-iv-init-cost.patch
> 05_pr45098-bound-cost.patch
> 06_pr45098-bound-cost.test.patch
> 07_pr45098-nowrap-limits-iterations.patch
> 08_pr45098-nowrap-limits-iterations.test.patch
> 09_pr45098-shift-add-cost.patch
> 10_pr45098-shift-add-cost.test.patch
>
> I will sent out the patches individually.
>
OK for trunk?
Thanks,
- Tom
2011-05-05 Tom de Vries <t...@codesourcery.com>
PR target/45098
* tree-ssa-loop-ivopts.c (computation_cost): Prevent cost of 0.
Index: gcc/tree-ssa-loop-ivopts.c
===================================================================
--- gcc/tree-ssa-loop-ivopts.c (revision 173380)
+++ gcc/tree-ssa-loop-ivopts.c (working copy)
@@ -2862,7 +2862,9 @@ computation_cost (tree expr, bool speed)
default_rtl_profile ();
node->frequency = real_frequency;
- cost = seq_cost (seq, speed);
+ cost = (seq != NULL_RTX
+ ? seq_cost (seq, speed)
+ : (unsigned)rtx_cost (rslt, SET, speed));
if (MEM_P (rslt))
cost += address_cost (XEXP (rslt, 0), TYPE_MODE (type),
TYPE_ADDR_SPACE (type), speed);
