diff options
Diffstat (limited to 'compiler/CodeGen.Platform.h')
-rw-r--r-- | compiler/CodeGen.Platform.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/compiler/CodeGen.Platform.h b/compiler/CodeGen.Platform.h index 346dd0af03..a216d266dd 100644 --- a/compiler/CodeGen.Platform.h +++ b/compiler/CodeGen.Platform.h @@ -926,6 +926,14 @@ freeReg 29 = False -- ip0 -- used for spill offset computations freeReg 16 = False +#if defined(darwin_HOST_OS) || defined(ios_HOST_OS) +-- x18 is reserved by the platform on Darwin/iOS, and can not be used +-- More about ARM64 ABI that Apple platforms support: +-- https://developer.apple.com/documentation/xcode/writing-arm64-code-for-apple-platforms +-- https://github.com/Siguza/ios-resources/blob/master/bits/arm64.md +freeReg 18 = False +#endif + # if defined(REG_Base) freeReg REG_Base = False # endif |