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bug #1178: Simplified modification of the SSE control register for better portability

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This commit is contained in:
Christoph Hertzberg 2016-03-20 10:57:08 +01:00
parent 8e03333f06
commit b224771f40
1 changed files with 4 additions and 9 deletions
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13
bench/btl/generic_bench/btl.hh
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@ -44,15 +44,10 @@
#define BTL_ASM_COMMENT(X)
#endif
#if (defined __GNUC__) && (!defined __INTEL_COMPILER) && !defined(__arm__) && !defined(__powerpc__)
#define BTL_DISABLE_SSE_EXCEPTIONS() { \
int aux = 0; \
asm( \
"stmxcsr %[aux] \n\t" \
"orl $32832, %[aux] \n\t" \
"ldmxcsr %[aux] \n\t" \
: : [aux] "m" (aux)); \
}
#ifdef __SSE__
#include "xmmintrin.h"
// This enables flush to zero (FTZ) and denormals are zero (DAZ) modes:
#define BTL_DISABLE_SSE_EXCEPTIONS() { _mm_setcsr(_mm_getcsr() | 0x8040); }
#else
#define BTL_DISABLE_SSE_EXCEPTIONS()
#endif