Displaying 1 result from an estimated 1 matches for "a99ce81a".
2019 Aug 21
3
Thumb frame pointer register
Hello all,
I noticed that for ARM Thumb target, llc uses r7 as frame pointer (gcc does
not do this AFAIK), and this register should therefore not be used as a
general-purpose register.
However, when compiling mbedTLS, which contains some code that is highly
optimized for ARM platform and uses r7 to efficiently perform an operation.
This raises an exception since r7 is now the frame pointer.
I