Enable or disable the generation of
STM instructions. AArch32 only.
-fno-ldm-stm option can reduce interrupt
latency on systems that:
- Do not have a cache or a write buffer.
- Use zero-wait-state, 32-bit memory.
-fno-ldm-stmmight slightly increase code size and decrease performance.
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