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Update ScopedFTZ asm for arm64

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This commit is contained in:
Jean Pierre Cimalando 2020-09-27 22:57:31 +02:00
parent 529d345a50
commit 48ac9384af
1 changed files with 10 additions and 4 deletions
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14
src/sfizz/ScopedFTZ.cpp
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@ -19,10 +19,14 @@ ScopedFTZ::ScopedFTZ()
unsigned mask = _MM_DENORMALS_ZERO_MASK | _MM_FLUSH_ZERO_MASK;
registerState = _mm_getcsr();
_mm_setcsr((registerState & (~mask)) | mask);
#elif SFIZZ_HAVE_NEON
#elif SFIZZ_HAVE_NEON && SFIZZ_CPU_FAMILY_ARM
intptr_t mask = (1 << 24);
asm volatile("vmrs %0, fpscr" : "=r"(registerState));
asm volatile("vmsr fpscr, %0" : : "ri"((registerState & (~mask)) | mask));
asm volatile("vmsr fpscr, %0" : : "r"((registerState & (~mask)) | mask));
#elif SFIZZ_HAVE_NEON && SFIZZ_CPU_FAMILY_AARCH64
intptr_t mask = (1 << 24);
asm volatile("mrs %0, fpcr" : "=r"(registerState));
asm volatile("msr fpcr, %0" : : "r"((registerState & (~mask)) | mask));
#endif
}
@ -30,7 +34,9 @@ ScopedFTZ::~ScopedFTZ()
{
#if SFIZZ_HAVE_SSE
_mm_setcsr(registerState);
#elif SFIZZ_HAVE_NEON
asm volatile("vmrs %0, fpscr" : : "ri"(registerState));
#elif SFIZZ_HAVE_NEON && SFIZZ_CPU_FAMILY_ARM
asm volatile("vmrs %0, fpscr" : : "r"(registerState));
#elif SFIZZ_HAVE_NEON && SFIZZ_CPU_FAMILY_AARCH64
asm volatile("mrs %0, fpcr" : : "r"(registerState));
#endif
}