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Merge pull request #2129 from jepler/audiomixer-debugging 

audiomixer: Supply constants in a way "-Og" optimization expects
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Dan Halbert 2019-09-09 22:43:49 -04:00 committed by GitHub
parent 4282ff42ca 8768896d6b
commit 2b560015c9
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1 changed files with 2 additions and 2 deletions
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shared-module/audiomixer/Mixer.c
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@ -262,8 +262,8 @@ static inline uint32_t mult16signed(uint32_t val, int32_t mul) {
}
#if (defined (__ARM_ARCH_7EM__) && (__ARM_ARCH_7EM__ == 1)) //Cortex-M4 w/FPU
int32_t hi, lo;
int32_t bits = 16; // saturate to 16 bits
int32_t shift = 0; // shift is done automatically
enum { bits = 16 }; // saturate to 16 bits
enum { shift = 0 }; // shift is done automatically
asm volatile("smulwb %0, %1, %2" : "=r" (lo) : "r" (mul), "r" (val));
asm volatile("smulwt %0, %1, %2" : "=r" (hi) : "r" (mul), "r" (val));
asm volatile("ssat %0, %1, %2, asr %3" : "=r" (lo) : "I" (bits), "r" (lo), "I" (shift));