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| author | witstorm95 <witstorm@163.com> | 2023-07-27 17:24:01 +0800 |
|---|---|---|
| committer | Chuanqi Xu <yedeng.yd@linux.alibaba.com> | 2023-07-27 17:25:32 +0800 |
| commit | bb4121e65251275b5b16a63423c2bb2be79aeebb (patch) | |
| tree | 2f7745dda46606ed38b09051ef8b7bf7fd4347cf /llvm/lib/CodeGen/MachineBasicBlock.cpp | |
| parent | 7c760b224bc4581a7a962ae7ded098a260d19500 (diff) | |
| download | llvm-bb4121e65251275b5b16a63423c2bb2be79aeebb.zip llvm-bb4121e65251275b5b16a63423c2bb2be79aeebb.tar.gz llvm-bb4121e65251275b5b16a63423c2bb2be79aeebb.tar.bz2 | |
[Coroutines] Add an O(n) algorithm for computing the cross suspend point
information.
Fixed https://github.com/llvm/llvm-project/issues/62348
Propagate cross suspend point information by visiting CFG.
Just only go through two times at most, you can get all the cross
suspend point information.
Before the patch:
```
n: 20000
4.31user 0.11system 0:04.44elapsed 99%CPU (0avgtext+0avgdata
552352maxresident)k
0inputs+8848outputs (0major+126254minor)pagefaults 0swaps
n: 40000
11.24user 0.40system 0:11.66elapsed 99%CPU (0avgtext+0avgdata
1788404maxresident)k
0inputs+17600outputs (0major+431105minor)pagefaults 0swaps
n: 60000
21.65user 0.96system 0:22.62elapsed 99%CPU (0avgtext+0avgdata
3809836maxresident)k
0inputs+26352outputs (0major+934749minor)pagefaults 0swaps
n: 80000
37.05user 1.53system 0:38.58elapsed 99%CPU (0avgtext+0avgdata
6602396maxresident)k
0inputs+35096outputs (0major+1622584minor)pagefaults 0swaps
n: 100000
51.87user 2.67system 0:54.54elapsed 99%CPU (0avgtext+0avgdata
10210736maxresident)k
0inputs+43848outputs (0major+2518945minor)pagefaults 0swaps
```
After the patch:
```
n: 20000
3.17user 0.16system 0:03.33elapsed 100%CPU (0avgtext+0avgdata
551736maxresident)k
0inputs+8848outputs (0major+126192minor)pagefaults 0swaps
n: 40000
6.10user 0.42system 0:06.54elapsed 99%CPU (0avgtext+0avgdata
1787848maxresident)k
0inputs+17600outputs (0major+432212minor)pagefaults 0swaps
n: 60000
9.13user 0.89system 0:10.03elapsed 99%CPU (0avgtext+0avgdata
3809108maxresident)k
0inputs+26352outputs (0major+931280minor)pagefaults 0swaps
n: 80000
12.44user 1.57system 0:14.02elapsed 99%CPU (0avgtext+0avgdata
6603432maxresident)k
0inputs+35096outputs (0major+1624635minor)pagefaults 0swaps
n: 100000
16.29user 2.28system 0:18.59elapsed 99%CPU (0avgtext+0avgdata
10212808maxresident)k
0inputs+43848outputs (0major+2522200minor)pagefaults 0swaps
```
Diffstat (limited to 'llvm/lib/CodeGen/MachineBasicBlock.cpp')
0 files changed, 0 insertions, 0 deletions