From f847e0195ddab27d3d55b348c1ab6857c2a00d9d Mon Sep 17 00:00:00 2001
From: liuhongt <hongtao.liu@intel.com>
Date: Fri, 18 Aug 2023 10:30:35 +0800
Subject: [PATCH] Support -march=gracemont
Alderlake-N is E-core only, add it as an alias of Alderlake.
gcc/ChangeLog:
* common/config/i386/cpuinfo.h (get_intel_cpu): Detect
Alderlake-N.
* common/config/i386/i386-common.cc (alias_table): Support
-march=gracemont as an alias of -march=alderlake.
---
gcc/common/config/i386/cpuinfo.h | 3 +++
gcc/common/config/i386/i386-common.cc | 2 ++
2 files changed, 5 insertions(+)
diff --git a/gcc/common/config/i386/cpuinfo.h b/gcc/common/config/i386/cpuinfo.h
index f49bc79ed7b5..1652411d6c47 100644
--- a/gcc/common/config/i386/cpuinfo.h
+++ b/gcc/common/config/i386/cpuinfo.h
@@ -533,6 +533,9 @@ get_intel_cpu (struct __processor_model *cpu_model,
cpu_model->__cpu_type = INTEL_COREI7;
cpu_model->__cpu_subtype = INTEL_COREI7_TIGERLAKE;
break;
+
+ case 0xbe:
+ /* Alder Lake N, E-core only. */
case 0x97:
case 0x9a:
/* Alder Lake. */
diff --git a/gcc/common/config/i386/i386-common.cc b/gcc/common/config/i386/i386-common.cc
index db88befc9b82..12a01704a73d 100644
--- a/gcc/common/config/i386/i386-common.cc
+++ b/gcc/common/config/i386/i386-common.cc
@@ -2301,6 +2301,8 @@ const pta processor_alias_table[] =
M_CPU_TYPE (INTEL_GOLDMONT_PLUS), P_PROC_SSE4_2},
{"tremont", PROCESSOR_TREMONT, CPU_HASWELL, PTA_TREMONT,
M_CPU_TYPE (INTEL_TREMONT), P_PROC_SSE4_2},
+ {"gracemont", PROCESSOR_ALDERLAKE, CPU_HASWELL, PTA_ALDERLAKE,
+ M_CPU_SUBTYPE (INTEL_COREI7_ALDERLAKE), P_PROC_AVX2},
{"sierraforest", PROCESSOR_SIERRAFOREST, CPU_HASWELL, PTA_SIERRAFOREST,
M_CPU_SUBTYPE (INTEL_SIERRAFOREST), P_PROC_AVX2},
{"grandridge", PROCESSOR_GRANDRIDGE, CPU_HASWELL, PTA_GRANDRIDGE,
--
GitLab