================
@@ -906,6 +906,16 @@ CreateFileHandler(MemoryBuffer &FirstInput,
}
OffloadBundlerConfig::OffloadBundlerConfig() {
+ if (llvm::compression::zstd::isAvailable()) {
+ CompressionFormat = llvm::compression::Format::Zstd;
+ // Use a high zstd compress level by default for better size reduction.
----------------
Artem-B wrote:
Also, I've just discovered that zstd already has
https://github.com/facebook/zstd/blob/b293d2ebc3a5d29309390a70b3e7861b6f5133ec/lib/zstd.h#L394
```
ZSTD_c_enableLongDistanceMatching=160, /* Enable long distance matching.
* This parameter is designed to improve
compression ratio
* for large inputs, by finding large
matches at long distance.
* It increases memory usage and window
size.
* Note: enabling this parameter increases
default ZSTD_c_windowLog to 128 MB
* except when expressly set to a different
value.
* Note: will be enabled by default if
ZSTD_c_windowLog >= 128 MB and
* compression strategy >= ZSTD_btopt (==
compression level 16+) */
```
This sounds like something we could use here.
https://github.com/llvm/llvm-project/pull/83605
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