From 74ae651bd61a7128c77ca08328956564fd49a23b Mon Sep 17 00:00:00 2001
From: Haochen Jiang <haochen.jiang@intel.com>
Date: Mon, 11 Nov 2024 10:48:16 +0800
Subject: Initial Diamond Rapids Support

gcc/ChangeLog:

	* common/config/i386/cpuinfo.h
	(get_intel_cpu): Handle Diamond Rapids.
	* common/config/i386/i386-common.cc (processor_name):
	Add Diamond Rapids.
	(processor_alias_table): Ditto.
	* common/config/i386/i386-cpuinfo.h (enum processor_types):
	Add INTEL_COREI7_DIAMONDRAPIDS.
	* config.gcc: Add -march=diamondrapids.
	* config/i386/driver-i386.cc (host_detect_local_cpu): Handle
	diamondrapids.
	* config/i386/i386-c.cc (ix86_target_macros_internal): Ditto.
	* config/i386/i386-options.cc (processor_cost_table): Ditto.
	(m_DIAMONDRAPIDS): New.
	(m_CORE_AVX512): Add diamondrapids.
	* config/i386/i386.h (enum processor_type): Ditto.
	* doc/extend.texi: Ditto.
	* doc/invoke.texi: Ditto.

gcc/testsuite/ChangeLog:

	* g++.target/i386/mv16.C: Ditto.
	* gcc.target/i386/funcspec-56.inc: Handle new march.
---
 gcc/common/config/i386/cpuinfo.h      | 16 ++++++++++++++++
 gcc/common/config/i386/i386-common.cc |  3 +++
 gcc/common/config/i386/i386-cpuinfo.h |  1 +
 3 files changed, 20 insertions(+)

(limited to 'gcc/common')

diff --git a/gcc/common/config/i386/cpuinfo.h b/gcc/common/config/i386/cpuinfo.h
index f415fc9..310eba3 100644
--- a/gcc/common/config/i386/cpuinfo.h
+++ b/gcc/common/config/i386/cpuinfo.h
@@ -636,6 +636,22 @@ get_intel_cpu (struct __processor_model *cpu_model,
       default:
 	break;
       }
+  /* Parse family and model for family 0x13.  */
+  else if (cpu_model2->__cpu_family == 0x13)
+    switch (cpu_model2->__cpu_model)
+      {
+      case 0x00:
+      case 0x01:
+	/* Diamond Rapids.  */
+	cpu = "diamondrapids";
+	CHECK___builtin_cpu_is ("corei7");
+	CHECK___builtin_cpu_is ("diamondrapids");
+	cpu_model->__cpu_type = INTEL_COREI7;
+	cpu_model->__cpu_subtype = INTEL_COREI7_DIAMONDRAPIDS;
+	break;
+      default:
+	break;
+      }
 
   return cpu;
 }
diff --git a/gcc/common/config/i386/i386-common.cc b/gcc/common/config/i386/i386-common.cc
index b2c2f0b..b044cba 100644
--- a/gcc/common/config/i386/i386-common.cc
+++ b/gcc/common/config/i386/i386-common.cc
@@ -2206,6 +2206,7 @@ const char *const processor_names[] =
   "arrowlake",
   "arrowlake-s",
   "pantherlake",
+  "diamondrapids",
   "intel",
   "lujiazui",
   "yongfeng",
@@ -2343,6 +2344,8 @@ const pta processor_alias_table[] =
     M_CPU_SUBTYPE (INTEL_COREI7_ARROWLAKE_S), P_PROC_AVX2},
   {"pantherlake", PROCESSOR_PANTHERLAKE, CPU_HASWELL, PTA_PANTHERLAKE,
     M_CPU_SUBTYPE (INTEL_COREI7_PANTHERLAKE), P_PROC_AVX2},
+  {"diamondrapids", PROCESSOR_DIAMONDRAPIDS, CPU_HASWELL, PTA_DIAMONDRAPIDS,
+    M_CPU_SUBTYPE (INTEL_COREI7_DIAMONDRAPIDS), P_PROC_AVX512F},
   {"bonnell", PROCESSOR_BONNELL, CPU_ATOM, PTA_BONNELL,
     M_CPU_TYPE (INTEL_BONNELL), P_PROC_SSSE3},
   {"atom", PROCESSOR_BONNELL, CPU_ATOM, PTA_BONNELL,
diff --git a/gcc/common/config/i386/i386-cpuinfo.h b/gcc/common/config/i386/i386-cpuinfo.h
index 23c9950..4c99b35 100644
--- a/gcc/common/config/i386/i386-cpuinfo.h
+++ b/gcc/common/config/i386/i386-cpuinfo.h
@@ -105,6 +105,7 @@ enum processor_subtypes
   ZHAOXIN_FAM7H_YONGFENG,
   AMDFAM1AH_ZNVER5,
   ZHAOXIN_FAM7H_SHIJIDADAO,
+  INTEL_COREI7_DIAMONDRAPIDS,
   CPU_SUBTYPE_MAX
 };
 
-- 
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