[Aarch64] Add cost for missing extensions.

[oota-llvm.git] / lib / Target / AArch64 / AArch64Subtarget.cpp

diff --git a/lib/Target/AArch64/AArch64Subtarget.cpp b/lib/Target/AArch64/AArch64Subtarget.cpp
index 88af9602322dc18e8262b2866bc7450da3ca5f0f..14ad44db800e28c8dbdda9a9834febe8a4f94441 100644 (file)
--- a/lib/Target/AArch64/AArch64Subtarget.cpp
+++ b/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) {}