[PATCH] D54785: add cascade lake arch in X86 target

[Chen Jianping via Phabricator via llvm-commits]

Jianping updated this revision to Diff 174907.
Jianping added a comment.

move cascadelake cpu subtype near intel related cpu subtype in include/llvm/Support/X86TargetParser.def


https://reviews.llvm.org/D54785

Files:
  include/llvm/Support/X86TargetParser.def
  lib/Support/Host.cpp
  lib/Target/X86/X86.td
  test/CodeGen/X86/cpus-intel.ll


Index: test/CodeGen/X86/cpus-intel.ll
===================================================================
--- test/CodeGen/X86/cpus-intel.ll
+++ test/CodeGen/X86/cpus-intel.ll
@@ -34,6 +34,7 @@
 ; RUN: llc < %s -o /dev/null -mtriple=x86_64-unknown-unknown -mcpu=skylake 2>&1 | FileCheck %s --check-prefix=CHECK-NO-ERROR --allow-empty
 ; RUN: llc < %s -o /dev/null -mtriple=x86_64-unknown-unknown -mcpu=skylake-avx512 2>&1 | FileCheck %s --check-prefix=CHECK-NO-ERROR --allow-empty
 ; RUN: llc < %s -o /dev/null -mtriple=x86_64-unknown-unknown -mcpu=skx 2>&1 | FileCheck %s --check-prefix=CHECK-NO-ERROR --allow-empty
+; RUN: llc < %s -o /dev/null -mtriple=x86_64-unknown-unknown -mcpu=cascadelake 2>&1 | FileCheck %s --check-prefix=CHECK-NO-ERROR --allow-empty
 ; RUN: llc < %s -o /dev/null -mtriple=x86_64-unknown-unknown -mcpu=cannonlake 2>&1 | FileCheck %s --check-prefix=CHECK-NO-ERROR --allow-empty
 ; RUN: llc < %s -o /dev/null -mtriple=x86_64-unknown-unknown -mcpu=icelake-client 2>&1 | FileCheck %s --check-prefix=CHECK-NO-ERROR --allow-empty
 ; RUN: llc < %s -o /dev/null -mtriple=x86_64-unknown-unknown -mcpu=icelake-server 2>&1 | FileCheck %s --check-prefix=CHECK-NO-ERROR --allow-empty
Index: lib/Target/X86/X86.td
===================================================================
--- lib/Target/X86/X86.td
+++ lib/Target/X86/X86.td
@@ -883,6 +883,17 @@
 def : SkylakeServerProc<"skylake-avx512">;
 def : SkylakeServerProc<"skx">; // Legacy alias.
 
+def CLXFeatures : ProcessorFeatures<SKXFeatures.Value, [
+  FeatureVNNI
+]>;
+
+class CascadelakeProc<string Name> : ProcModel<Name, SkylakeServerModel,
+                                              CLXFeatures.Value, [
+  FeatureHasFastGather,
+  FeaturePOPCNTFalseDeps
+]>;
+def : CascadelakeProc<"cascadelake">;
+
 def CNLFeatures : ProcessorFeatures<SKLFeatures.Value, [
   FeatureAVX512,
   FeatureCDI,
Index: lib/Support/Host.cpp
===================================================================
--- lib/Support/Host.cpp
+++ lib/Support/Host.cpp
@@ -702,6 +702,12 @@
         break;
       }
 
+      if (Features & (1 << X86::FEATURE_AVX512VNNI)) {
+        *Type = X86::INTEL_COREI7;
+        *Subtype = X86::INTEL_COREI7_CASCADELAKE;
+        break;
+      }
+
       if (Features & (1 << X86::FEATURE_AVX512VL)) {
         *Type = X86::INTEL_COREI7;
         *Subtype = X86::INTEL_COREI7_SKYLAKE_AVX512;
Index: include/llvm/Support/X86TargetParser.def
===================================================================
--- include/llvm/Support/X86TargetParser.def
+++ include/llvm/Support/X86TargetParser.def
@@ -102,6 +102,7 @@
 // Entries below this are not in libgcc/compiler-rt.
 X86_CPU_SUBTYPE       ("core2",          INTEL_CORE2_65)
 X86_CPU_SUBTYPE       ("penryn",         INTEL_CORE2_45)
+X86_CPU_SUBTYPE       ("cascadelake",    INTEL_COREI7_CASCADELAKE)
 X86_CPU_SUBTYPE       ("k6",             AMDPENTIUM_K6)
 X86_CPU_SUBTYPE       ("k6-2",           AMDPENTIUM_K62)
 X86_CPU_SUBTYPE       ("k6-3",           AMDPENTIUM_K63)


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