[llvm-bugs] [Bug 24588] aarch64 backend uses x18 on iOS

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=24588

Fangrui Song <i at maskray.me> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
                 CC|                            |i at maskray.me
             Status|NEW                         |RESOLVED

--- Comment #1 from Fangrui Song <i at maskray.me> ---
Fixed by r253102 AArch64: Default AArch64Subtarget::ReserveX18 to true on
darwin

--- 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(),

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