* [Patch GCC 5/Vect] Partial backport of r228751 (pr68238)
@ 2015-11-10 10:11 James Greenhalgh
2015-11-10 14:43 ` James Greenhalgh
0 siblings, 1 reply; 2+ messages in thread
From: James Greenhalgh @ 2015-11-10 10:11 UTC (permalink / raw)
To: gcc-patches; +Cc: richard.guenther
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Hi,
As requested in the PR, this patch is a partial backport of r228751.
I can't claim any responsibility for it, but I did take it through the
paces on an aarch64-none-linux-gnu and x86_64-none-linux-gnu bootstrap/
test run and found no issues.
Applied as r230092 on gcc-5-branch (pre-approved in the PR) after checking
that it gives the right results for the code I derived the PR from.
I'll start a test cycle for a 4.9 backport.
Thanks,
James
---
2015-11-09 James Greenhalgh <james.greenhalgh@arm.com>
Partial backport from trunk r228751.
PR tree-optimization/68238
2015-10-13 Richard Biener <rguenther@suse.de>
* tree-vect-loop.c (vect_estimate_min_profitable_iters): Use
LOOP_VINFO_COMP_ALIAS_DDRS to estimate alias versioning cost.
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diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c
index 88ef251..05515b5 100644
--- a/gcc/tree-vect-loop.c
+++ b/gcc/tree-vect-loop.c
@@ -2825,7 +2825,7 @@ vect_estimate_min_profitable_iters (loop_vec_info loop_vinfo,
if (LOOP_REQUIRES_VERSIONING_FOR_ALIAS (loop_vinfo))
{
/* FIXME: Make cost depend on complexity of individual check. */
- unsigned len = LOOP_VINFO_MAY_ALIAS_DDRS (loop_vinfo).length ();
+ unsigned len = LOOP_VINFO_COMP_ALIAS_DDRS (loop_vinfo).length ();
(void) add_stmt_cost (target_cost_data, len, vector_stmt, NULL, 0,
vect_prologue);
dump_printf (MSG_NOTE,
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [Patch GCC 5/Vect] Partial backport of r228751 (pr68238)
2015-11-10 10:11 [Patch GCC 5/Vect] Partial backport of r228751 (pr68238) James Greenhalgh
@ 2015-11-10 14:43 ` James Greenhalgh
0 siblings, 0 replies; 2+ messages in thread
From: James Greenhalgh @ 2015-11-10 14:43 UTC (permalink / raw)
To: gcc-patches; +Cc: richard.guenther
On Tue, Nov 10, 2015 at 10:11:30AM +0000, James Greenhalgh wrote:
>
> Hi,
>
> As requested in the PR, this patch is a partial backport of r228751.
>
> I can't claim any responsibility for it, but I did take it through the
> paces on an aarch64-none-linux-gnu and x86_64-none-linux-gnu bootstrap/
> test run and found no issues.
>
> Applied as r230092 on gcc-5-branch (pre-approved in the PR) after checking
> that it gives the right results for the code I derived the PR from.
>
> I'll start a test cycle for a 4.9 backport.
Now done and committed as r230110, after a clean run on
aarch64-none-linux-gnu and x86_64-none-linux-gnu.
Thanks,
James
> 2015-11-10 James Greenhalgh <james.greenhalgh@arm.com>
>
> Partial backport from trunk r228751.
> PR tree-optimization/68238
> 2015-10-13 Richard Biener <rguenther@suse.de>
>
> * tree-vect-loop.c (vect_estimate_min_profitable_iters): Use
> LOOP_VINFO_COMP_ALIAS_DDRS to estimate alias versioning cost.
>
> diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c
> index 88ef251..05515b5 100644
> --- a/gcc/tree-vect-loop.c
> +++ b/gcc/tree-vect-loop.c
> @@ -2825,7 +2825,7 @@ vect_estimate_min_profitable_iters (loop_vec_info loop_vinfo,
> if (LOOP_REQUIRES_VERSIONING_FOR_ALIAS (loop_vinfo))
> {
> /* FIXME: Make cost depend on complexity of individual check. */
> - unsigned len = LOOP_VINFO_MAY_ALIAS_DDRS (loop_vinfo).length ();
> + unsigned len = LOOP_VINFO_COMP_ALIAS_DDRS (loop_vinfo).length ();
> (void) add_stmt_cost (target_cost_data, len, vector_stmt, NULL, 0,
> vect_prologue);
> dump_printf (MSG_NOTE,
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