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[AArch64] Add native CPU detection for Microsoft Azure Cobalt 100. #77793

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Merged
merged 1 commit into from
Jan 16, 2024
Merged

[AArch64] Add native CPU detection for Microsoft Azure Cobalt 100. #77793

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7 changes: 7 additions & 0 deletions llvm/lib/TargetParser/Host.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -310,6 +310,13 @@ StringRef sys::detail::getHostCPUNameForARM(StringRef ProcCpuinfoContent) {
}
}

if (Implementer == "0x6d") { // Microsoft Corporation.
// The Microsoft Azure Cobalt 100 CPU is handled as a Neoverse N2.
return StringSwitch<const char *>(Part)
.Case("0xd49", "neoverse-n2")
.Default("generic");
}

if (Implementer == "0xc0") { // Ampere Computing
return StringSwitch<const char *>(Part)
.Case("0xac3", "ampere1")
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4 changes: 3 additions & 1 deletion llvm/unittests/TargetParser/Host.cpp
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Expand Up @@ -113,7 +113,9 @@ TEST(getLinuxHostCPUName, AArch64) {
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x51\n"
"CPU part : 0xc01"),
"saphira");

EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x6d\n"
"CPU part : 0xd49"),
"neoverse-n2");
EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0xc0\n"
"CPU part : 0xac3"),
"ampere1");
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