[clang] [llvm] [X86] Remove RAO-INT from Grandridge (PR #76420)

[Freddy Ye via cfe-commits]

https://github.com/FreddyLeaf created https://github.com/llvm/llvm-project/pull/76420

According to latest spec: https://cdrdv2.intel.com/v1/dl/getContent/671368


>From ae1d12c24facb36323b9b46a73a1fbc3edff4dc8 Mon Sep 17 00:00:00 2001
From: Freddy Ye <freddy.ye at intel.com>
Date: Wed, 27 Dec 2023 10:33:30 +0800
Subject: [PATCH] [X86] Remove RAO-INT from Grandridge

According to latest spec: https://cdrdv2.intel.com/v1/dl/getContent/671368
---
 clang/test/Preprocessor/predefined-arch-macros.c |  6 ++----
 llvm/lib/Target/X86/X86.td                       | 11 +++--------
 llvm/lib/TargetParser/X86TargetParser.cpp        |  4 +---
 3 files changed, 6 insertions(+), 15 deletions(-)

diff --git a/clang/test/Preprocessor/predefined-arch-macros.c b/clang/test/Preprocessor/predefined-arch-macros.c
index 1ae6faea776785..27c7b4a271fee8 100644
--- a/clang/test/Preprocessor/predefined-arch-macros.c
+++ b/clang/test/Preprocessor/predefined-arch-macros.c
@@ -2515,7 +2515,7 @@
 // RUN:   | FileCheck -match-full-lines %s -check-prefix=CHECK_SRF_M32
 // RUN: %clang -march=grandridge -m32 -E -dM %s -o - 2>&1 \
 // RUN:     --target=i386 \
-// RUN:   | FileCheck -match-full-lines %s -check-prefixes=CHECK_SRF_M32,CHECK_GRR_M32
+// RUN:   | FileCheck -match-full-lines %s -check-prefixes=CHECK_SRF_M32
 // RUN: %clang -march=arrowlake -m32 -E -dM %s -o - 2>&1 \
 // RUN:     -target i386-unknown-linux \
 // RUN:   | FileCheck -match-full-lines %s -check-prefix=CHECK_SRF_M32
@@ -2572,7 +2572,6 @@
 // CHECK_SRF_M32: #define __PRFCHW__ 1
 // CHECK_SRF_M32: #define __PTWRITE__ 1
 // CHECK_SRF_M32-NOT: #define __RAOINT__ 1
-// CHECK_GRR_M32: #define __RAOINT__ 1
 // CHECK_SRF_M32: #define __RDPID__ 1
 // CHECK_SRF_M32: #define __RDRND__ 1
 // CHECK_SRF_M32: #define __RDSEED__ 1
@@ -2618,7 +2617,7 @@
 // RUN:   | FileCheck -match-full-lines %s -check-prefix=CHECK_SRF_M64
 // RUN: %clang -march=grandridge -m64 -E -dM %s -o - 2>&1 \
 // RUN:     --target=i386 \
-// RUN:   | FileCheck -match-full-lines %s -check-prefixes=CHECK_SRF_M64,CHECK_GRR_M64
+// RUN:   | FileCheck -match-full-lines %s -check-prefixes=CHECK_SRF_M64
 // RUN: %clang -march=arrowlake -m64 -E -dM %s -o - 2>&1 \
 // RUN:     -target i386-unknown-linux \
 // RUN:   | FileCheck -match-full-lines %s -check-prefix=CHECK_SRF_M64
@@ -2675,7 +2674,6 @@
 // CHECK_SRF_M64: #define __PRFCHW__ 1
 // CHECK_SRF_M64: #define __PTWRITE__ 1
 // CHECK_SRF_M64-NOT: #define __RAOINT__ 1
-// CHECK_GRR_M64: #define __RAOINT__ 1
 // CHECK_SRF_M64: #define __RDPID__ 1
 // CHECK_SRF_M64: #define __RDRND__ 1
 // CHECK_SRF_M64: #define __RDSEED__ 1
diff --git a/llvm/lib/Target/X86/X86.td b/llvm/lib/Target/X86/X86.td
index 5fd6828f43129d..e89ddcc570c96c 100644
--- a/llvm/lib/Target/X86/X86.td
+++ b/llvm/lib/Target/X86/X86.td
@@ -1256,11 +1256,6 @@ def ProcessorFeatures {
   list<SubtargetFeature> SRFFeatures =
     !listconcat(ADLFeatures, SRFAdditionalFeatures);
 
-  // Grandridge
-  list<SubtargetFeature> GRRAdditionalFeatures = [FeatureRAOINT];
-  list<SubtargetFeature> GRRFeatures =
-    !listconcat(SRFFeatures, GRRAdditionalFeatures);
-
   // Arrowlake S
   list<SubtargetFeature> ARLSAdditionalFeatures = [FeatureAVXVNNIINT16,
                                                    FeatureSHA512,
@@ -1706,10 +1701,10 @@ foreach P = ["goldmont_plus", "goldmont-plus"] in {
 }
 def : ProcModel<"tremont", SLMModel, ProcessorFeatures.TRMFeatures,
                 ProcessorFeatures.TRMTuning>;
-def : ProcModel<"sierraforest", AlderlakePModel, ProcessorFeatures.SRFFeatures,
-                ProcessorFeatures.TRMTuning>;
-def : ProcModel<"grandridge", AlderlakePModel, ProcessorFeatures.GRRFeatures,
+foreach P = ["sierraforest", "grandridge"] in {
+  def : ProcModel<P, AlderlakePModel, ProcessorFeatures.SRFFeatures,
                 ProcessorFeatures.TRMTuning>;
+}
 
 // "Arrandale" along with corei3 and corei5
 foreach P = ["nehalem", "corei7", "core_i7_sse4_2"] in {
diff --git a/llvm/lib/TargetParser/X86TargetParser.cpp b/llvm/lib/TargetParser/X86TargetParser.cpp
index 085554f18b2b6b..d46ff07ec7340a 100644
--- a/llvm/lib/TargetParser/X86TargetParser.cpp
+++ b/llvm/lib/TargetParser/X86TargetParser.cpp
@@ -162,8 +162,6 @@ constexpr FeatureBitset FeaturesAlderlake =
 constexpr FeatureBitset FeaturesSierraforest =
     FeaturesAlderlake | FeatureCMPCCXADD | FeatureAVXIFMA | FeatureUINTR |
     FeatureENQCMD | FeatureAVXNECONVERT | FeatureAVXVNNIINT8;
-constexpr FeatureBitset FeaturesGrandridge =
-    FeaturesSierraforest | FeatureRAOINT;
 constexpr FeatureBitset FeaturesArrowlakeS = FeaturesSierraforest |
     FeatureAVXVNNIINT16 | FeatureSHA512 | FeatureSM3 | FeatureSM4;
 constexpr FeatureBitset FeaturesPantherlake =
@@ -369,7 +367,7 @@ constexpr ProcInfo Processors[] = {
   // Sierraforest microarchitecture based processors.
   { {"sierraforest"}, CK_Sierraforest, FEATURE_AVX2, FeaturesSierraforest, 'p', false },
   // Grandridge microarchitecture based processors.
-  { {"grandridge"}, CK_Grandridge, FEATURE_AVX2, FeaturesGrandridge, 'p', false },
+  { {"grandridge"}, CK_Grandridge, FEATURE_AVX2, FeaturesSierraforest, 'p', false },
   // Granite Rapids microarchitecture based processors.
   { {"graniterapids"}, CK_Graniterapids, FEATURE_AVX512BF16, FeaturesGraniteRapids, 'n', false },
   // Granite Rapids D microarchitecture based processors.