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[X86] Add cascade lake arch in X86 target.

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This is skylake-avx512 with the addition of avx512vnni ISA.

Patch by Jianping Chen

Differential Revision: https://reviews.llvm.org/D54785

llvm-svn: 347681
This commit is contained in:
Craig Topper 2018-11-27 18:05:00 +00:00
parent 3ce09e1b66
commit f88d85bd02
4 changed files with 19 additions and 0 deletions
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1
include/llvm/Support/X86TargetParser.def
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@ -102,6 +102,7 @@ X86_CPU_SUBTYPE_COMPAT("icelake-server", INTEL_COREI7_ICELAKE_SERVER, "icelake-s
// 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)

6
lib/Support/Host.cpp
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@ -702,6 +702,12 @@ getIntelProcessorTypeAndSubtype(unsigned Family, unsigned Model,
break;
}
if (Features2 & (1 << (X86::FEATURE_AVX512VNNI - 32))) {
*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;

11
lib/Target/X86/X86.td
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@ -883,6 +883,17 @@ class SkylakeServerProc<string Name> : ProcModel<Name, SkylakeServerModel,
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,

1
test/CodeGen/X86/cpus-intel.ll
View File

@ -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