One of the problems in the multi-pipeline design is the limited inherent instruction level parallelism (ILP) available in applications. The ILP of application programs can be improved via a compiler optimization
Loop unrolling is, perhaps, the oldest, simplest, and best-known loop transformation. To unroll a loop, the compiler replicates the loop's body and adjusts the logic that controls the number of iterations performed. To see this, consider the loop nest from used as an example in Section ...
Consider, as an example, a program containing a loop (identified as Li) we wish to tune based on the use of three compiler transformations, namely, loop unrolling, loop tilling, and loop parallelization. In this context, a configuration is specified by the tuple < Li, UF, TS, PAR > whe...
You can disable the auto unrolling by using "#pragma unroll 1" and see if it fixes your problem. However, if the issue still occurs in the
Shift_reg is my attempt at trying to preserve the unrolling and adding the shift register at the same time by creating another nested loop. Unfortunately, the loop is still schedule with an II=5 with an "Undetermined reason" in Loop Analysis in the reports. If I get rid ...
to distribute the corresponding syntactic construct. The extraction process uses a secret key in order to recover the information loss and reconstruct the watermark. In particular, we focus on loops and we base the embedding and extraction algorithm on the semantic understanding of loop-unrolling. ...
Loop splitting can be also used to create prologues and or epilogues of a loop (in this case it is similar to loop peeling) as in the case of loop vectorization when the iteration space is not a multiple of the vector length, or in the case of loop unrolling when the iteration space ...
6948160 System and method for loop unrolling in a dynamic compiler 2005-09-20 Click et al. 6772415 Loop optimization with mapping code on an architecture 2004-08-03 Danckaert et al. 717/161 6745384 Anticipatory optimization with composite folding 2004-06-01 Biggerstaff 717/156 20040068718 System...
Impact of loop unrolling on area, throughput and clock frequency in ROCCC: C to VHDL compiler for FPGAs - Buyukkurt, Guo, et al. - 2006Buyukkurt, B., Guo, Z., Najjar, W.A.: Impact of loop unrolling on area, throughput and clock frequency in ROCCC: C to VHDL compiler for FPGA...
5375238Nesting management mechanism for use in loop control system1994-12-20Ooi712/241 5367651Integrated register allocation, instruction scheduling, instruction reduction and loop unrolling1994-11-22Smith et al.395/709 5317743System for compiling iterated loops based on the possibility of parallel executi...