Hi all,
Third version of the patch here addressing comments.
This patch enables the Armv8.1-M Mainline LOB (low overhead branch) extension
low overhead loops (LOL) feature by using the 'loop-doloop' pass.
Given the following function:
void
loop (int *a)
{
for (int i = 0; i < 1000; i++)
a[
Hi Roman,
Roman Zhuykov writes:
>> SMS is disabled in tests not to break them when SMS does loop versioning.
>
> And I'm not really sure about this. First of all, there are a lot of
> scan-assembler-times tests which fail when modulo-scheduler is enabled,
> probably the same happens when some u
Hi Roman,
On 2/21/20 3:49 PM, Roman Zhuykov wrote:
11.02.2020 14:00, Richard Earnshaw (lists) wrote:
+(define_insn "*doloop_end"
+ [(parallel [(set (pc)
+ (if_then_else
+ (ne (reg:SI LR_REGNUM) (const_int 1))
+ (label_ref (match_opera
11.02.2020 14:00, Richard Earnshaw (lists) wrote:
> +(define_insn "*doloop_end"
> + [(parallel [(set (pc)
> + (if_then_else
> + (ne (reg:SI LR_REGNUM) (const_int 1))
> + (label_ref (match_operand 0 "" ""))
> + (pc)))
>
Andrea Corallo writes:
> With this patch the first insn of the low loop overhead 'doloop_begin'
> is expanded by 'doloop_modify' in loop-doloop.c. The same does not
> happen with SMS.
That certainly works correct as in your first patch, doloop_begin
pattern also have "!flag_modulo_sched" conditi
Hi Andrea,
On 2/19/20 1:01 PM, Andrea Corallo wrote:
Hi all,
Second version of the patch here addressing comments.
This patch enables the Armv8.1-M Mainline LOB (low overhead branch)
extension
low overhead loops (LOL) feature by using the 'loop-doloop' pass.
Given the following function:
v
Hi all,
Second version of the patch here addressing comments.
This patch enables the Armv8.1-M Mainline LOB (low overhead branch) extension
low overhead loops (LOL) feature by using the 'loop-doloop' pass.
Given the following function:
void
loop (int *a)
{
for (int i = 0; i < 1000; i++)
a
Hi Roman,
Roman Zhuykov writes:
> This patch is stage1 material, right?
Yes
>>
>>> +(define_insn "*doloop_end"
>>> + [(parallel [(set (pc)
>>> + (if_then_else
>>> + (ne (reg:SI LR_REGNUM) (const_int 1))
>>> + (label_ref (match_operan
Hello!
11.02.2020 16:40, Andrea Corallo wrote:
> Hi Richard,
>
> "Richard Earnshaw (lists)" writes:
>
>>> gcc/ChangeLog:
>>> 2020-??-?? Andrea Corallo
>>> 2020-??-?? Mihail-Calin Ionescu
>>> 2020-??-?? Iain Apreotesei
>>> * config/arm/arm.c (TARGET_INVALID_WITHIN_DOLOOP):
>>>
Hi Richard,
"Richard Earnshaw (lists)" writes:
>> gcc/ChangeLog:
>> 2020-??-?? Andrea Corallo
>> 2020-??-?? Mihail-Calin Ionescu
>> 2020-??-?? Iain Apreotesei
>> * config/arm/arm.c (TARGET_INVALID_WITHIN_DOLOOP):
>> (arm_invalid_within_doloop): Implement invalid_within
On 11/02/2020 10:14, Andrea Corallo wrote:
Hi all,
This patch enables the Armv8.1-M Mainline LOB (low overhead branch) extension
low overhead loops (LOL) feature by using the loop-doloop pass
that it shares with the Swing Modulo Scheduler.
bootstrapped arm-none-linux-gnueabihf, does not introdu
Hi all,
This patch enables the Armv8.1-M Mainline LOB (low overhead branch) extension
low overhead loops (LOL) feature by using the loop-doloop pass
that it shares with the Swing Modulo Scheduler.
bootstrapped arm-none-linux-gnueabihf, does not introduce testsuite regressions.
Andrea
gcc/Change
12 matches
Mail list logo
