[X86] Add a stub for znver3 based on the little public information there is in AMD's manuals
No scheduling, no autodetection. Just enough so -march=znver3 works.
diff --git a/llvm/lib/Support/X86TargetParser.cpp b/llvm/lib/Support/X86TargetParser.cpp
index 7b1e0c0..0a803d0 100644
--- a/llvm/lib/Support/X86TargetParser.cpp
+++ b/llvm/lib/Support/X86TargetParser.cpp
@@ -279,6 +279,9 @@
FeatureXSAVEOPT | FeatureXSAVES;
constexpr FeatureBitset FeaturesZNVER2 =
FeaturesZNVER1 | FeatureCLWB | FeatureRDPID | FeatureWBNOINVD;
+static constexpr FeatureBitset FeaturesZNVER3 = FeaturesZNVER2 |
+ FeatureINVPCID | FeaturePKU |
+ FeatureVAES | FeatureVPCLMULQDQ;
constexpr ProcInfo Processors[] = {
// Empty processor. Include X87 and CMPXCHG8 for backwards compatibility.
@@ -391,6 +394,7 @@
// Zen architecture processors.
{ {"znver1"}, CK_ZNVER1, FEATURE_AVX2, FeaturesZNVER1 },
{ {"znver2"}, CK_ZNVER2, FEATURE_AVX2, FeaturesZNVER2 },
+ { {"znver3"}, CK_ZNVER3, FEATURE_AVX2, FeaturesZNVER3 },
// Generic 64-bit processor.
{ {"x86-64"}, CK_x86_64, ~0U, FeaturesX86_64 },
{ {"x86-64-v2"}, CK_x86_64_v2, ~0U, FeaturesX86_64_V2 },