vex amd64->IR: unhandled instruction bytes: 0xC5 0xEC 0xC2 0xD3 0x1D 0xC5 0xD4 0xC2
vex amd64->IR:   REX=0 REX.W=0 REX.R=0 REX.X=0 REX.B=0
vex amd64->IR:   VEX=1 VEX.L=1 VEX.nVVVV=0x2 ESC=0F
vex amd64->IR:   PFX.66=0 PFX.F2=0 PFX.F3=0
==9427== valgrind: Unrecognised instruction at address 0x40751b.

The offending source code on that line:
 __m256i ok0 = _mm256_cmp_ps( tmax, _mm256_max_ps( zero8, tmin ), _CMP_GE_OQ );

Ignore the max intrinsic: the crash goes away if _CMP_GE_OQ is changed into _CMP_GT_OQ

Reproducible: Always

Steps to Reproduce:
1.Build code with offending intrinsic in it.
2.Run valgrind over it.
3.

Actual Results:  
Unhandled instruction

Expected Results:  
Normal operation