[root@sweetpig-15 internal-testsuite]# go test -v cmd/compile/internal/amd64
=== RUN   TestGoAMD64v1
    versions_test.go:162: clobbering instruction   407d8c:	f3 0f b8 d2          	popcnt %edx,%edx
    versions_test.go:162: clobbering instruction   407dc8:	f3 0f b8 d2          	popcnt %edx,%edx
    versions_test.go:162: clobbering instruction   407e01:	f3 0f b8 d2          	popcnt %edx,%edx
    versions_test.go:162: clobbering instruction   407e39:	f3 0f b8 d2          	popcnt %edx,%edx
    versions_test.go:162: clobbering instruction   407e99:	f3 0f b8 d2          	popcnt %edx,%edx
    versions_test.go:162: clobbering instruction   407e9d:	f3 0f b8 c9          	popcnt %ecx,%ecx
    versions_test.go:162: clobbering instruction   407ef6:	f3 48 0f b8 d2       	popcnt %rdx,%rdx
    versions_test.go:162: clobbering instruction   42d1bd:	f3 4d 0f b8 c9       	popcnt %r9,%r9
    versions_test.go:162: clobbering instruction   4353c5:	f3 48 0f b8 ff       	popcnt %rdi,%rdi
    versions_test.go:162: clobbering instruction   4358eb:	f3 48 0f b8 f2       	popcnt %rdx,%rsi
    versions_test.go:162: clobbering instruction   435c33:	f3 4d 0f b8 c0       	popcnt %r8,%r8
    versions_test.go:162: clobbering instruction   435ca6:	f3 48 0f b8 c8       	popcnt %rax,%rcx
    versions_test.go:162: clobbering instruction   435d04:	f3 4d 0f b8 c9       	popcnt %r9,%r9
    versions_test.go:162: clobbering instruction   435d66:	f3 48 0f b8 cb       	popcnt %rbx,%rcx
    versions_test.go:162: clobbering instruction   47a10e:	66 0f 3a 22 00 02    	pinsrd $0x2,(%rax),%xmm0
    versions_test.go:162: clobbering instruction   47a14e:	66 48 0f 3a 22 00 01 	pinsrq $0x1,(%rax),%xmm0
    versions_test.go:162: clobbering instruction   5b94b2:	66 0f 3a 16 c8 01    	pextrd $0x1,%xmm1,%eax
    versions_test.go:162: clobbering instruction   6b8b0d:	f3 0f b8 c6          	popcnt %esi,%eax
    versions_test.go:162: clobbering instruction   743138:	f3 4d 0f b8 d2       	popcnt %r10,%r10
    versions_test.go:162: clobbering instruction   7467a8:	f3 4c 0f b8 e0       	popcnt %rax,%r12
    versions_test.go:162: clobbering instruction   749721:	f3 49 0f b8 f5       	popcnt %r13,%rsi
    versions_test.go:162: clobbering instruction   749908:	f3 49 0f b8 fd       	popcnt %r13,%rdi
    versions_test.go:162: clobbering instruction   749fb1:	f3 48 0f b8 ff       	popcnt %rdi,%rdi
    versions_test.go:162: clobbering instruction   74a099:	f3 48 0f b8 ff       	popcnt %rdi,%rdi
    versions_test.go:162: clobbering instruction   74be12:	f3 4c 0f b8 d0       	popcnt %rax,%r10
    versions_test.go:162: clobbering instruction   74ca7c:	f3 48 0f b8 d2       	popcnt %rdx,%rdx
    versions_test.go:162: clobbering instruction   7542ec:	f3 4c 0f b8 d0       	popcnt %rax,%r10
    versions_test.go:162: clobbering instruction   7754da:	66 0f 3a 0b c0 02    	roundsd $0x2,%xmm0,%xmm0
    versions_test.go:162: clobbering instruction   78981a:	66 0f 3a 0b c0 01    	roundsd $0x1,%xmm0,%xmm0
    versions_test.go:162: clobbering instruction   7b7d3a:	66 0f 3a 0b c0 00    	roundsd $0x0,%xmm0,%xmm0
    versions_test.go:162: clobbering instruction   7cc03a:	66 0f 3a 0b c0 03    	roundsd $0x3,%xmm0,%xmm0
    versions_test.go:162: clobbering instruction   80c5c7:	f3 4c 0f b8 c6       	popcnt %rsi,%r8
    versions_test.go:162: clobbering instruction   80c705:	f3 44 0f b8 c6       	popcnt %esi,%r8d
    versions_test.go:162: clobbering instruction   80d944:	66 0f 3a 0b d0 00    	roundsd $0x0,%xmm0,%xmm2
    versions_test.go:162: clobbering instruction   80dba0:	c4 e2 f9 b9 d1       	vfmadd231sd %xmm1,%xmm0,%xmm2
    versions_test.go:162: clobbering instruction   815107:	66 48 0f 3a 22 c2 01 	pinsrq $0x1,%rdx,%xmm0
    versions_test.go:81: couldn't execute test: signal: trace/breakpoint trap (core dumped)
--- FAIL: TestGoAMD64v1 (2.75s)
=== RUN   TestPopCnt
--- PASS: TestPopCnt (0.00s)
=== RUN   TestAndNot
--- PASS: TestAndNot (0.00s)
=== RUN   TestBLSI
--- PASS: TestBLSI (0.00s)
=== RUN   TestBLSMSK
--- PASS: TestBLSMSK (0.00s)
=== RUN   TestBLSR
--- PASS: TestBLSR (0.00s)
=== RUN   TestTrailingZeros
--- PASS: TestTrailingZeros (0.00s)
=== RUN   TestRound
--- PASS: TestRound (0.00s)
=== RUN   TestFMA
--- PASS: TestFMA (0.00s)
FAIL
FAIL	cmd/compile/internal/amd64	2.761s
FAIL
[root@sweetpig-15 internal-testsuite]# dmesg 
[82866.889376] traps: TestGoAMD64v126[1013866] trap int3 ip:815108 sp:7ffc101f2860 error:0 in TestGoAMD64v12695171573[402000+414000]
[root@sweetpig-15 internal-testsuite]#
[root@sweetpig-15 internal-testsuite]# cat /proc/cpuinfo 
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 79
model name	: Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
stepping	: 1
microcode	: 0xb00001d
cpu MHz		: 2099.996
cache size	: 16384 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 20
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good nopl xtopology cpuid tsc_known_freq pni pclmulqdq vmx ssse3 fma cx16 pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch cpuid_fault pti tpr_shadow flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap xsaveopt arat vnmi umip arch_capabilities
vmx flags	: vnmi preemption_timer posted_intr invvpid ept_x_only ept_ad ept_1gb flexpriority apicv tsc_offset vtpr mtf vapic ept vpid unrestricted_guest vapic_reg vid shadow_vmcs pml
bugs		: cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa mmio_stale_data
bogomips	: 4199.99
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:
(...)