Keith Walker 2d9c6e699a [Thumb1] Use callee-saved register to adjust stack pointer ...

When adjusting the Stack Pointer at the end of the function epilogue,
use a callee-saved register, rather than explicitly using R4 which may
not have been saved.

Differential Revision: https://reviews.llvm.org/D157500

2023-08-17 18:29:50 +01:00

3.5 KiB

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