[compiler-rt] 0e6c931 - [X86] Add cooperlake detection to _cpu_indicator_init.

[Craig Topper via llvm-commits]

Author: Craig Topper
Date: 2020-06-21T13:02:33-07:00
New Revision: 0e6c9316d4c532ba1a024bc0ea552a0b866df4f1

URL: https://github.com/llvm/llvm-project/commit/0e6c9316d4c532ba1a024bc0ea552a0b866df4f1
DIFF: https://github.com/llvm/llvm-project/commit/0e6c9316d4c532ba1a024bc0ea552a0b866df4f1.diff

LOG: [X86] Add cooperlake detection to _cpu_indicator_init.

libgcc has this enum encoding defined for a while, but their
detection code is missing. I've raised a bug with them so that
should get fixed soon.

Added: 
    

Modified: 
    compiler-rt/lib/builtins/cpu_model.c

Removed: 
    


################################################################################
diff  --git a/compiler-rt/lib/builtins/cpu_model.c b/compiler-rt/lib/builtins/cpu_model.c
index c9aa42b2e673..ce25227d0b3b 100644
--- a/compiler-rt/lib/builtins/cpu_model.c
+++ b/compiler-rt/lib/builtins/cpu_model.c
@@ -353,7 +353,9 @@ static void getIntelProcessorTypeAndSubtype(unsigned Family, unsigned Model,
     // Skylake Xeon:
     case 0x55:
       *Type = INTEL_COREI7;
-      if (testFeature(FEATURE_AVX512VNNI))
+      if (testFeature(FEATURE_AVX512BF16))
+        *Subtype = INTEL_COREI7_COOPERLAKE; // "cooperlake"
+      else if (testFeature(FEATURE_AVX512VNNI))
         *Subtype = INTEL_COREI7_CASCADELAKE; // "cascadelake"
       else
         *Subtype = INTEL_COREI7_SKYLAKE_AVX512; // "skylake-avx512"