On Fri, Feb 17, 2017 at 10:55 AM, Martin Liška wrote:
> On 02/16/2017 12:34 PM, Richard Biener wrote:
>> Yes, we should handle all of the "hidden initialized" cases at
>>
>> /* A PARM_DECL will not have an SSA_NAME_DEF_STMT. Parameters
>> get their initial value from function entry
On 02/16/2017 12:34 PM, Richard Biener wrote:
> Yes, we should handle all of the "hidden initialized" cases at
>
> /* A PARM_DECL will not have an SSA_NAME_DEF_STMT. Parameters
> get their initial value from function entry. */
> if (SSA_NAME_VAR (t) && TREE_CODE (SSA_NAME_VA
On Thu, Feb 16, 2017 at 11:45 AM, Aldy Hernandez wrote:
> On 02/16/2017 03:46 AM, Martin Liška wrote:
>>
>> On 02/15/2017 05:06 PM, Aldy Hernandez wrote:
>>>
>>> On 02/15/2017 09:49 AM, Martin Liška wrote:
Hi.
As mentioned in the PR, gimple nops are wrongly handled in
is_m
On 02/16/2017 03:46 AM, Martin Liška wrote:
On 02/15/2017 05:06 PM, Aldy Hernandez wrote:
On 02/15/2017 09:49 AM, Martin Liška wrote:
Hi.
As mentioned in the PR, gimple nops are wrongly handled in is_maybe_undefined
function.
Patch can bootstrap on ppc64le-redhat-linux and survives regression
On 02/15/2017 05:06 PM, Aldy Hernandez wrote:
> On 02/15/2017 09:49 AM, Martin Liška wrote:
>> Hi.
>>
>> As mentioned in the PR, gimple nops are wrongly handled in
>> is_maybe_undefined function.
>> Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.
>
>>
>> gimple *d
On 02/15/2017 09:49 AM, Martin Liška wrote:
Hi.
As mentioned in the PR, gimple nops are wrongly handled in is_maybe_undefined
function.
Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.
gimple *def = SSA_NAME_DEF_STMT (t);
+ if (!def || gimple_nop_p (def
Wed, 15 Feb 2017 13:46:38 +0100
Subject: [PATCH] Handle GIMPLE NOPs in is_maybe_undefined (PR
tree-optimization/79529).
gcc/ChangeLog:
2017-02-15 Martin Liska
PR tree-optimization/79529
* tree-ssa-loop-unswitch.c (is_maybe_undefined): Bail out when
spotting a gimple NOP.
---
gcc/tree-ssa-l
