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| author | Jan Svoboda <jan_svoboda@apple.com> | 2024-03-01 16:36:41 -0800 |
|---|---|---|
| committer | Jan Svoboda <jan_svoboda@apple.com> | 2024-03-01 16:53:12 -0800 |
| commit | 5594d12af540dfcc684a02a232484c2b4dd2f5b5 (patch) | |
| tree | f9b9f5e1413c12042fe8d65518f6d76dabc3e4b9 | |
| parent | 70467dd0ee0fee2877bf17a465ab975a84baa360 (diff) | |
[clang][driver] NFC: Upstream comment
| -rw-r--r-- | clang/lib/Driver/ToolChains/Arch/AArch64.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/clang/lib/Driver/ToolChains/Arch/AArch64.cpp b/clang/lib/Driver/ToolChains/Arch/AArch64.cpp index 0cf96bb5c9cb..aa3b80cb16e5 100644 --- a/clang/lib/Driver/ToolChains/Arch/AArch64.cpp +++ b/clang/lib/Driver/ToolChains/Arch/AArch64.cpp @@ -165,11 +165,14 @@ getAArch64MicroArchFeaturesFromMtune(const Driver &D, StringRef Mtune, // Handle CPU name is 'native'. if (MtuneLowerCase == "native") MtuneLowerCase = std::string(llvm::sys::getHostCPUName()); + + // 'cyclone' and later have zero-cycle register moves and zeroing. if (MtuneLowerCase == "cyclone" || StringRef(MtuneLowerCase).starts_with("apple")) { Features.push_back("+zcm"); Features.push_back("+zcz"); } + return true; } |