diff options
Diffstat (limited to 'includes/CodeGen.Platform.hs')
| -rw-r--r-- | includes/CodeGen.Platform.hs | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/includes/CodeGen.Platform.hs b/includes/CodeGen.Platform.hs index 0dfac62a3f..ebec0212bd 100644 --- a/includes/CodeGen.Platform.hs +++ b/includes/CodeGen.Platform.hs @@ -1028,6 +1028,14 @@ 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 |