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Modify AOT static PGO to conform to llvm-18 and add a CI job to test static PGO on the coremark benchmark (#4345)

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* static PGO compatible with llvm18 and add CI job to test static PGO on coremark benchmark
* update comments and warning info, bitmaps section in llvm profdata shouldn't be used in PGO
This commit is contained in:
TianlongLiang
2025-06-12 16:57:11 +08:00
committed by GitHub
parent 2fe7105e8d
commit 0343aaf8c3
7 changed files with 38 additions and 6 deletions
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9
tests/benchmarks/README.md
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@ -8,6 +8,8 @@ Refer to the `README.md` under each folder for how to build and run the benchmar
## Install `llvm-profdata`
> PS: the `llvm-profdata` vesion needs to be the same major version with llvm libraries used to build wamrc.
The tool `llvm-profdata` is used when running the `test_pgo.sh` script under the benchmark folder. There are two ways to install it:
1. Refer to https://apt.llvm.org/, e.g. in Ubuntu 20.04, add lines below to /etc/apt/source.list
@ -18,19 +20,22 @@ deb-src http://apt.llvm.org/focal/ llvm-toolchain-focal main
# 15
deb http://apt.llvm.org/focal/ llvm-toolchain-focal-15 main
deb-src http://apt.llvm.org/focal/ llvm-toolchain-focal-15 main
# 18
deb http://apt.llvm.org/focal/ llvm-toolchain-focal-18 main
deb-src http://apt.llvm.org/focal/ llvm-toolchain-focal-18 main
```
Then run `sudo apt update`, `sudo apt install llvm`. And after installing:
```bash
cd /usr/bin
sudo ln -s llvm-profdata-15 llvm-profdata
sudo ln -s llvm-profdata-18 llvm-profdata
```
2. Build manually
```bash
git clone --depth 1 --branch release/15.x https://github.com/llvm/llvm-project.git
git clone --depth 1 --branch release/18.x https://github.com/llvm/llvm-project.git
cd llvm-project
mkdir build && cd build
cmake ../llvm \