stack pointer for apple's armv7 ABI. When in a frameless function or in a prologue/epilogue where sp wasn't properly aligned, we could try to make function calls with an unaligned sp; the expression would crash. llvm-svn: 314265
stack pointer for apple's armv7 ABI. When in a frameless function or in a prologue/epilogue where sp wasn't properly aligned, we could try to make function calls with an unaligned sp; the expression would crash. llvm-svn: 314265