From 403e166b974f53982d78efdd70938d05b6983b2a Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Fri, 19 Jun 2020 21:17:26 -0700 Subject: [PATCH] x86: Add Cooper Lake detection with AVX512BF16 All Sky Lake family processors have the same CPUID model number, 0x55. The differences are Cascade Lake has AVX512VNNI and Cooper Lake has AVX512VNNI + AVX512BF16. Check AVX512BF16 for Cooper Lake. PR target/95774 * common/config/i386/cpuinfo.h (get_intel_cpu): Add Cooper Lake detection with AVX512BF16. --- gcc/common/config/i386/cpuinfo.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/gcc/common/config/i386/cpuinfo.h b/gcc/common/config/i386/cpuinfo.h index 2d72b3b60fd..27b7b4d8581 100644 --- a/gcc/common/config/i386/cpuinfo.h +++ b/gcc/common/config/i386/cpuinfo.h @@ -398,7 +398,15 @@ get_intel_cpu (struct __processor_model *cpu_model, CHECK___builtin_cpu_is ("corei7"); cpu_model->__cpu_type = INTEL_COREI7; if (has_cpu_feature (cpu_model, cpu_features2, - FEATURE_AVX512VNNI)) + FEATURE_AVX512BF16)) + { + /* Cooper Lake. */ + cpu = "cooperlake"; + CHECK___builtin_cpu_is ("cooperlake"); + cpu_model->__cpu_subtype = INTEL_COREI7_COOPERLAKE; + } + else if (has_cpu_feature (cpu_model, cpu_features2, + FEATURE_AVX512VNNI)) { /* Cascade Lake. */ cpu = "cascadelake"; -- 2.30.2