Add F64 FIR Manual Loop Unrolling#294
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christophe0606 merged 2 commits intoARM-software:mainfrom Feb 12, 2026
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Adds support for manual loop unrolling (ARM_MATH_LOOPUNROLL) based on arm_fir_f32.c implementation. Minor udpate to arm_fir_f32.c documentation.
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Change Description
Adds support for manual loop unrolling (ARM_MATH_LOOPUNROLL) to arm_fir_f64.c based on arm_fir_f32.c implementation. Minor update to arm_fir_f32.c documentation.
Test Environment
TI AM2434, Cortex-R5F, VFPv3-D16
TI CCS 20.4.1.4
TI ARM Clang Compiler v5.0
32 Taps, 512 Samples
PMU Profiling Results
-O0 w/o ARM_MATH_LOOPUNROLL - 743891 Cycles
-O0 w/ ARM_MATH_LOOPUNROLL - 430654 Cycles
-O3, -ffast-math - 376658 Cycles