Stephen, Old Intel i3-3220T and new Intel Ultra 7 258V.
--- Intel i3-3220T: ~/go/src$ ./all.bash ##### Test execution environment. # GOARCH: amd64 # CPU: Intel(R) Core(TM) i3-3220T CPU @ 2.80GHz # GOOS: linux # OS Version: Linux 6.8.0-90-generic #91-Ubuntu SMP PREEMPT_DYNAMIC Tue Nov 18 14:14:30 UTC 2025 x86_64 ##### GOEXPERIMENT=simd go test simd/archsimd/... ok simd/archsimd 0.018s SIGILL: illegal instruction PC=0x548760 m=0 sigcode=2 instruction bytes: 0xc5 0xfd 0xfd 0xc1 0xc3 0xcc 0xcc 0xcc 0xcc 0xcc 0xcc 0xcc 0xcc 0xcc 0xcc 0xcc ~/go/src$ go version go version go1.26-devel_65b71c11d4 Tue Dec 16 13:08:47 2025 -0800 linux/amd64 Intel® Core™ i3-3220T Processor https://www.intel.com/content/www/us/en/products/sku/65694/intel-core-i33220t-processor-3m-cache-2-80-ghz/specifications.html Specifications Advanced Technologies Instruction Set Extensions Intel® SSE4.1, Intel® SSE4.2, Intel® AVX AND Intel Ultra 7 258V: ~/go/src$ ./all.bash ##### Test execution environment. # GOARCH: amd64 # CPU: Intel(R) Core(TM) Ultra 7 258V # GOOS: linux # OS Version: Linux 6.14.0-37-generic #37~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Nov 20 10:25:38 UTC 2 x86_64 ##### GOEXPERIMENT=simd go test simd/archsimd/... ok simd/archsimd 0.006s SIGILL: illegal instruction PC=0x57ba1c m=7 sigcode=2 instruction bytes: 0x62 0xf2 0x75 0x8 0x50 0xd0 0x90 0x90 0x90 0xc5 0xfa 0x7f 0x54 0x24 0x60 0x31 ~/go/src$ go version go version go1.26-devel_65b71c11d4 Tue Dec 16 13:08:47 2025 -0800 linux/amd64 Intel® Core™ Ultra 7 Processor 258V https://www.intel.com/content/www/us/en/products/sku/240957/intel-core-ultra-7-processor-258v-12m-cache-up-to-4-80-ghz/specifications.html Advanced Technologies Instruction Set Extensions Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 Peter On Tuesday, December 16, 2025 at 4:25:48 PM UTC-5 Stephen Illingworth wrote: > I'm building Go1.26rc1 from source (all.bash) > > The testing phase fails with the SIMD test. > > ##### GOEXPERIMENT=simd go test simd/archsimd/... > ok simd/archsimd 0.096s > SIGILL: illegal instruction > PC=0x548760 m=2 sigcode=2 > instruction bytes: 0xc5 0xfd 0xfd 0xc1 0xc3 0xcc 0xcc 0xcc 0xcc 0xcc 0xcc > 0xcc 0xcc 0xcc 0xcc 0xcc > > I have an older amd64 CPU (i3-3225) which has limited SIMD instructions. > > > With regards to testing, all tests following this failure are "skipped due > to earlier error" > > Should GOEXPERIMENT tests be an automatic part of the test suite? (I > hadn't specified any GOEXPERIMENTs) > > > > > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/golang-nuts/0d7f1b7f-afee-42b5-8689-f62c3cb7aa8cn%40googlegroups.com.
