Displaying 4 results from an estimated 4 matches for "branch_miss_penalti".
Did you mean:
branch_miss_penalty
2008 Mar 29
2
[LLVMdev] Introducing a branch optimization and prediction pass
Hi,
I would like to transform unpredictable conditional branches with a
small body into cmov instructions to reduce branch miss penalty.
LLVM generates cmov/setcc instructions when SelectInst is used. The idea
is to transform regular branches into selects, when that is possible and
profitable.
However this needs branch prediction info, and it seems LLVM doesn't
provide that AFAICT.
Could
2008 Mar 31
0
[LLVMdev] Introducing a branch optimization and prediction pass
On Mar 29, 2008, at 6:02 AM, Török Edwin wrote:
> Hi,
>
> I would like to transform unpredictable conditional branches with a
> small body into cmov instructions to reduce branch miss penalty.
> LLVM generates cmov/setcc instructions when SelectInst is used. The
> idea
> is to transform regular branches into selects, when that is possible
> and
> profitable.
LLVM
2008 Mar 31
2
[LLVMdev] Introducing a branch optimization and prediction pass
Evan Cheng wrote:
> On Mar 29, 2008, at 6:02 AM, Török Edwin wrote:
>
>
>> Hi,
>>
>> I would like to transform unpredictable conditional branches with a
>> small body into cmov instructions to reduce branch miss penalty.
>> LLVM generates cmov/setcc instructions when SelectInst is used. The
>> idea
>> is to transform regular branches into
2008 Mar 31
0
[LLVMdev] Introducing a branch optimization and prediction pass
On Mar 31, 2008, at 7:01 AM, Török Edwin wrote:
> Evan Cheng wrote:
>> On Mar 29, 2008, at 6:02 AM, Török Edwin wrote:
>>
>>
>>> Hi,
>>>
>>> I would like to transform unpredictable conditional branches with a
>>> small body into cmov instructions to reduce branch miss penalty.
>>> LLVM generates cmov/setcc instructions when