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-rw-r--r--llvm/lib/Target/AArch64/AArch64Subtarget.cpp5
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64Subtarget.cpp b/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
index 88af9602322..14ad44db800 100644
--- a/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
+++ b/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
@@ -53,8 +53,9 @@ AArch64Subtarget::AArch64Subtarget(const Triple &TT, const std::string &CPU,
: AArch64GenSubtargetInfo(TT, CPU, FS), ARMProcFamily(Others),
HasV8_1aOps(false), HasFPARMv8(false), HasNEON(false), HasCrypto(false),
HasCRC(false), HasPerfMon(false), HasZeroCycleRegMove(false),
- HasZeroCycleZeroing(false), StrictAlign(false), ReserveX18(false),
- IsLittle(LittleEndian), CPUString(CPU), TargetTriple(TT), FrameLowering(),
+ HasZeroCycleZeroing(false), StrictAlign(false),
+ ReserveX18(TT.isOSDarwin()), IsLittle(LittleEndian), CPUString(CPU),
+ TargetTriple(TT), FrameLowering(),
InstrInfo(initializeSubtargetDependencies(FS)), TSInfo(),
TLInfo(TM, *this) {}
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