Displaying 4 results from an estimated 4 matches for "preg_i4".
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2012 Nov 22
2
[LLVMdev] Disable loop unroll pass
...t;
> |
> zdl_loop(k3-9) {
> sum+=k1;
> }
> |
>
> So, we introduce a new ZDLBR whirl(open64 optimizer intermediate)
> operator, which represents the loop in whirl as:||
>
> |
> LABEL L2050 0 {line: 0}
> LOOP_INFO 0 1 1
> I4I4LDID 73 <1,2,.preg_I4> T<4,.predef_I4,4> # k3
> I4I4LDID 77 <1,2,.preg_I4> T<4,.predef_I4,4> # <preg>
> END_LOOP_INFO
> I4I4LDID 74 <1,2,.preg_I4> T<4,.predef_I4,4> # k1
> I4I4LDID 75 <1,2,.preg_I4> T<4,.predef_I4,4> # sum
> I4ADD
>...
2012 Nov 22
0
[LLVMdev] Disable loop unroll pass
...For example,
while(k3>=10){
sum+=k1;
k3 --;
}
into the form:
zdl_loop(k3-9) {
sum+=k1;
}
So, we introduce a new ZDLBR whirl(open64 optimizer intermediate) operator, which represents the loop in whirl as:
LABEL L2050 0 {line: 0}
LOOP_INFO 0 1 1
I4I4LDID 73 <1,2,.preg_I4> T<4,.predef_I4,4> # k3
I4I4LDID 77 <1,2,.preg_I4> T<4,.predef_I4,4> # <preg>
END_LOOP_INFO
I4I4LDID 74 <1,2,.preg_I4> T<4,.predef_I4,4> # k1
I4I4LDID 75 <1,2,.preg_I4> T<4,.predef_I4,4> # sum
I4ADD
I4STID 75 <1,2,.preg_I4> T<...
2012 Nov 22
3
[LLVMdev] Disable loop unroll pass
Hi Shuxin, Eli,
On 22/11/2012 03:19, Shuxin Yang wrote:
> Hi, Ivan:
>
> My $0.02. hasZeroCostLooping() disabling unrolling dose not seem
> to be
> appropriate for other architectures, at least the one I worked before.
I appreciate your feed-back. Could you give an example where building a
hw loop is not appropriate for your target?
>
> You mentioned:
>
2012 Nov 22
0
[LLVMdev] Disable loop unroll pass
...into the form:
>> zdl_loop(k3-9) {
>> sum+=k1;
>> }
>> So, we introduce a new ZDLBR whirl(open64 optimizer intermediate) operator, which represents the loop in whirl as:
>> LABEL L2050 0 {line: 0}
>> LOOP_INFO 0 1 1
>> I4I4LDID 73 <1,2,.preg_I4> T<4,.predef_I4,4> # k3
>> I4I4LDID 77 <1,2,.preg_I4> T<4,.predef_I4,4> # <preg>
>> END_LOOP_INFO
>> I4I4LDID 74 <1,2,.preg_I4> T<4,.predef_I4,4> # k1
>> I4I4LDID 75 <1,2,.preg_I4> T<4,.predef_I4,4> # sum
>>...