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Improve AMD CPU detection

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kd-11 2024-08-03 16:27:33 +03:00 committed by kd-11
parent c8e81a2dad
commit 0be1c41e63
1 changed files with 8 additions and 1 deletions
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9
Utilities/JITLLVM.cpp
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@ -735,6 +735,11 @@ llvm::StringRef fallback_cpu_detection()
{
switch (family)
{
case 0x10:
return "amdfam10";
case 0x15:
// Bulldozer class, includes piledriver, excavator, steamroller, etc
return utils::has_avx2() ? "bdver4" : "bdver1";
case 0x17:
case 0x18:
// No major differences between znver1 and znver2, return the lesser
@ -749,7 +754,9 @@ llvm::StringRef fallback_cpu_detection()
// Return zen4 as a workaround until the next LLVM upgrade.
return "znver4";
default:
return "znver4"; // Return newest known model here
return utils::has_avx512()
? "znver4"
: "znver3";
}
}
else if (brand.contains("Intel"))