+.global _sparcv9_vis1_probe
+.align 8
+_sparcv9_vis1_probe:
+ add %sp,BIAS+2,%o1
+ .word 0xc19a5a40 !ldda [%o1]ASI_FP16_P,%f0
+ retl
+ .word 0x81b00d80 !fxor %f0,%f0,%f0
+.type _sparcv9_vis1_probe,#function
+.size _sparcv9_vis1_probe,.-_sparcv9_vis1_probe
+
+! Probe and instrument VIS1 instruction. Output is number of cycles it
+! takes to execute rdtick and pair of VIS1 instructions. US-Tx VIS unit
+! is slow (documented to be 6 cycles on T2) and the core is in-order
+! single-issue, it should be possible to distinguish Tx reliably...
+! Observed return values are:
+!
+! UltraSPARC IIe 7
+! UltraSPARC III 7
+! UltraSPARC T1 24
+! SPARC T4 65(*)
+!
+! (*) result has lesser to do with VIS instruction latencies, rdtick
+! appears that slow, but it does the trick in sense that FP and
+! VIS code paths are still slower than integer-only ones.
+!
+! Numbers for T2 and SPARC64 V-VII are more than welcomed.
+!
+! It would be possible to detect specifically US-T1 by instrumenting
+! fmul8ulx16, which is emulated on T1 and as such accounts for quite
+! a lot of %tick-s, couple of thousand on Linux...
+.global _sparcv9_vis1_instrument
+.align 8
+_sparcv9_vis1_instrument:
+ .word 0x81b00d80 !fxor %f0,%f0,%f0
+ .word 0x85b08d82 !fxor %f2,%f2,%f2
+ .word 0x91410000 !rd %tick,%o0
+ .word 0x81b00d80 !fxor %f0,%f0,%f0
+ .word 0x85b08d82 !fxor %f2,%f2,%f2
+ .word 0x93410000 !rd %tick,%o1
+ .word 0x81b00d80 !fxor %f0,%f0,%f0
+ .word 0x85b08d82 !fxor %f2,%f2,%f2
+ .word 0x95410000 !rd %tick,%o2
+ .word 0x81b00d80 !fxor %f0,%f0,%f0
+ .word 0x85b08d82 !fxor %f2,%f2,%f2
+ .word 0x97410000 !rd %tick,%o3
+ .word 0x81b00d80 !fxor %f0,%f0,%f0
+ .word 0x85b08d82 !fxor %f2,%f2,%f2
+ .word 0x99410000 !rd %tick,%o4
+
+ ! calculate intervals
+ sub %o1,%o0,%o0
+ sub %o2,%o1,%o1
+ sub %o3,%o2,%o2
+ sub %o4,%o3,%o3
+
+ ! find minumum value
+ cmp %o0,%o1
+ .word 0x38680002 !bgu,a %xcc,.+8
+ mov %o1,%o0
+ cmp %o0,%o2
+ .word 0x38680002 !bgu,a %xcc,.+8
+ mov %o2,%o0
+ cmp %o0,%o3
+ .word 0x38680002 !bgu,a %xcc,.+8
+ mov %o3,%o0
+
+ retl
+ nop
+.type _sparcv9_vis1_instrument,#function
+.size _sparcv9_vis1_instrument,.-_sparcv9_vis1_instrument
+
+.global _sparcv9_vis2_probe
+.align 8
+_sparcv9_vis2_probe:
+ retl
+ .word 0x81b00980 !bshuffle %f0,%f0,%f0
+.type _sparcv9_vis2_probe,#function
+.size _sparcv9_vis2_probe,.-_sparcv9_vis2_probe
+
+.global _sparcv9_fmadd_probe
+.align 8
+_sparcv9_fmadd_probe:
+ .word 0x81b00d80 !fxor %f0,%f0,%f0
+ .word 0x85b08d82 !fxor %f2,%f2,%f2
+ retl
+ .word 0x81b80440 !fmaddd %f0,%f0,%f2,%f0
+.type _sparcv9_fmadd_probe,#function
+.size _sparcv9_fmadd_probe,.-_sparcv9_fmadd_probe
+
+.global _sparcv9_rdcfr
+.align 8
+_sparcv9_rdcfr:
+ retl
+ .word 0x91468000 !rd %asr26,%o0
+.type _sparcv9_rdcfr,#function
+.size _sparcv9_rdcfr,.-_sparcv9_rdcfr
+
+.global _sparcv9_vis3_probe
+.align 8
+_sparcv9_vis3_probe:
+ retl
+ .word 0x81b022a0 !xmulx %g0,%g0,%g0
+.type _sparcv9_vis3_probe,#function
+.size _sparcv9_vis3_probe,.-_sparcv9_vis3_probe
+
+.global _sparcv9_random
+.align 8
+_sparcv9_random:
+ retl
+ .word 0x91b002a0 !random %o0
+.type _sparcv9_random,#function
+.size _sparcv9_random,.-_sparcv9_vis3_probe
+
+.global _sparcv9_fjaesx_probe
+.align 8
+_sparcv9_fjaesx_probe:
+ .word 0x81b09206 !faesencx %f2,%f6,%f0
+ retl
+ nop
+.size _sparcv9_fjaesx_probe,.-_sparcv9_fjaesx_probe
+