================
@@ -1845,6 +1845,7 @@ bool sys::getHostCPUFeatures(StringMap<bool> &Features) {
Features["prefetchi"] = HasLeaf7Subleaf1 && ((EDX >> 14) & 1);
Features["usermsr"] = HasLeaf7Subleaf1 && ((EDX >> 15) & 1);
Features["avx10.1-256"] = HasLeaf7Subleaf1 && ((EDX >> 19) & 1);
+ Features["apxf"] = HasLeaf7Subleaf1 && ((EDX >> 21) & 1);
----------------
FreddyLeaf wrote:
Emm, I happened to find an issue with this patch.
```
$ clang -march=native foo.c -S -emit-llvm
'-apxf' is not a recognized feature for this target (ignoring feature)
```
It turns out even not adding logics in X86TargetInfo::hasFeature it will still
return false for "apxf". I also found "-egpr" is not generated. How did you
handle this?
https://github.com/llvm/llvm-project/pull/80636
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