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| author | Erik Schnetter <schnetter@gmail.com> | 2013-06-02 21:36:42 -0400 |
|---|---|---|
| committer | Erik Schnetter <schnetter@gmail.com> | 2013-06-02 21:36:42 -0400 |
| commit | 22468c8d61094e7aca952c71b862b6972a12db4f (patch) | |
| tree | de95550358514cbb0f7238c9be8b77cc9b026196 /mathfuncs_convert.h | |
| parent | 6411bd494c3238bd4b55e8e4d67e1dc56fecb92f (diff) | |
| download | vecmathlib-22468c8d61094e7aca952c71b862b6972a12db4f.zip vecmathlib-22468c8d61094e7aca952c71b862b6972a12db4f.tar.gz | |
Add barrier in vml_antitrunc to ensure floating point accuracy
Diffstat (limited to 'mathfuncs_convert.h')
| -rw-r--r-- | mathfuncs_convert.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mathfuncs_convert.h b/mathfuncs_convert.h index 4001834..d93d9d6 100644 --- a/mathfuncs_convert.h +++ b/mathfuncs_convert.h @@ -164,6 +164,7 @@ namespace vecmathlib { realvec_t mask = ldexp(RV(2.0), nbits) - RV(1.0); intvec_t imask = IV(FP::signbit_mask | FP::exponent_mask) | as_int(mask); realvec_t offset = RV(1.0) - ldexp(RV(1.0), nbits - IV(FP::mantissa_bits)); + offset.barrier(); realvec_t y = as_float(as_int(x + offset) & imask); realvec_t r = copysign(ifthen(iszero, RV(0.0), |
