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Enforce -mtune=core2 and -mtune=yonah on macOS #245

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Feb 9, 2022
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Enforce -mtune=core2 and -mtune=yonah on macOS #245

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12 changes: 11 additions & 1 deletion src/trans/target.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -541,11 +541,21 @@ namespace
ARCH_X86_64
};
}
else if(target_name == "i686-apple-darwin")
{
// NOTE: OSX uses Mach-O binaries, which don't fully support the defaults used for GNU targets
// The first 32bit Intel Mac was Core Solo aka yonah. It allows to use `-march=yonah` like Rust.
return TargetSpec {
"unix", "macos", "gnu", {CodegenMode::Gnu11, false, "x86_64-apple-darwin", {"-march=yonah"}, {}},
ARCH_X86_64
};
}
else if(target_name == "x86_64-apple-darwin")
{
// NOTE: OSX uses Mach-O binaries, which don't fully support the defaults used for GNU targets
// The first 64bit Intel Mac was Core Duo. It allows to use `-march=core2` like Rust.
return TargetSpec {
"unix", "macos", "gnu", {CodegenMode::Gnu11, false, "x86_64-apple-darwin", {}, {}},
"unix", "macos", "gnu", {CodegenMode::Gnu11, false, "x86_64-apple-darwin", {"-march=core2"}, {}},
ARCH_X86_64
};
}
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