Hey everyone, I’m running into a weird issue with my Xcode project. It’s compiling fine on iPhone 5 and simulators, but when I try to build it for my iPhone 7, I get this strange error:
clang: error: clang frontend command failed with exit code 70
fatal error: error in backend: Error while trying to spill X0 from class GPR64: Cannot scavenge register without an emergency spill slot!
The error message goes on about submitting a bug report and includes some file locations. I’m not sure what’s causing this or how to fix it. Has anyone encountered something similar? Any ideas on what might be going wrong or how to troubleshoot this? I’m pretty stumped and could use some help figuring out why it’s only happening on my iPhone 7. Thanks in advance for any insights!
yo, that error sounds like a real pain. have u tried clearin ur derived data? sometimes that fixes weird stuff. also, maybe check ur code for any crazy complex bits - they can mess with the compiler. if nothin else works, might be worth downgradin xcode or even restin ur phone. good luck mate!
The issue you’re encountering may be specific to LLVM’s handling of certain optimizations on the iPhone 7’s architecture. In my experience, beginning with a clean build by removing derived data can resolve temporary quirks. If that doesn’t help, consider changing your optimization settings—particularly for the Debug configuration. Complex expressions or inline code might also trigger backend issues, so refactoring those sections could be beneficial. Finally, checking for updates to Xcode is a prudent step since compiler bugs are often fixed in newer versions.
Hey there! That error sounds super frustrating. Have u tried messin with ur build settings? sometimes tweaking the optimization level can help. also, any chance ur using some funky third-party libraries? they mite be causin trouble. what version of xcode r u on? maybe its time for an update? keep us posted on what works!