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[darwin][driver] isMacosxVersionLT should check against the minimum supported OS version

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This change ensures that the Darwin driver doesn't add unsupported libraries to the link
invocation when linking the Apple Silicon macOS slice.

rdar://61011136

Differential Revision: https://reviews.llvm.org/D82696
This commit is contained in:
Alex Lorenz 2020-06-29 10:23:16 -07:00
parent 8b5c0cc776
commit 7a66c0870c
2 changed files with 17 additions and 0 deletions
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6
include/llvm/ADT/Triple.h
View File

@ -860,6 +860,12 @@ public:
/// Merge target triples.
std::string merge(const Triple &Other) const;
/// Some platforms have different minimum supported OS versions that
/// varies by the architecture specified in the triple. This function
/// returns the minimum supported OS version for this triple if one an exists,
/// or an invalid version tuple if this triple doesn't have one.
VersionTuple getMinimumSupportedOSVersion() const;
/// @}
/// @name Static helpers for IDs.
/// @{

11
lib/Support/Triple.cpp
View File

@ -1624,6 +1624,17 @@ bool Triple::isMacOSXVersionLT(unsigned Major, unsigned Minor,
}
}
VersionTuple Triple::getMinimumSupportedOSVersion() const {
if (getVendor() != Triple::Apple || getArch() != Triple::aarch64)
return VersionTuple();
/// ARM64 slice is supported starting from macOS 11.0+.
if (getOS() == Triple::MacOSX)
return VersionTuple(11, 0, 0);
if (getOS() == Triple::IOS && isMacCatalystEnvironment())
return VersionTuple(14, 0, 0);
return VersionTuple();
}
StringRef Triple::getARMCPUForArch(StringRef MArch) const {
if (MArch.empty())
MArch = getArchName();