Disables the generation of
STM instructions. This helps reduce interrupt latency on some ARM systems.
-fno-ldm-stm option can reduce interrupt latency on ARM systems that:
- Do not have a cache or a write buffer.
- Use zero-wait-state, 32-bit memory.
-fno-ldm-stmincreases code size and decreases performance slightly.
STM instructions (for example, in assembly code you are assembling with
armclang) are not removed.
The default is
-fldm-stm. That is, by default
armclang can generate