diff --git a/gcc/common/config/i386/cpuinfo.h b/gcc/common/config/i386/cpuinfo.h
index f73834b086c..cc499c46ed0 100644
--- a/gcc/common/config/i386/cpuinfo.h
+++ b/gcc/common/config/i386/cpuinfo.h
@@ -516,6 +516,12 @@ get_intel_cpu (struct __processor_model *cpu_model,
       cpu_model->__cpu_type = INTEL_COREI7;
       cpu_model->__cpu_subtype = INTEL_COREI7_SAPPHIRERAPIDS;
       break;
+    case 0xaf:
+      /* Sierra Forest.  */
+      cpu = "sierraforest";
+      CHECK___builtin_cpu_is ("sierraforest");
+      cpu_model->__cpu_type = INTEL_SIERRAFOREST;
+      break;
     case 0x17:
     case 0x1d:
       /* Penryn.  */
diff --git a/gcc/common/config/i386/i386-common.cc b/gcc/common/config/i386/i386-common.cc
index 75966779d82..6ccc4d2f03c 100644
--- a/gcc/common/config/i386/i386-common.cc
+++ b/gcc/common/config/i386/i386-common.cc
@@ -1874,6 +1874,7 @@ const char *const processor_names[] =
   "goldmont",
   "goldmont-plus",
   "tremont",
+  "sierraforest",
   "knl",
   "knm",
   "skylake",
@@ -2019,6 +2020,8 @@ 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},
+  {"sierraforest", PROCESSOR_SIERRAFOREST, CPU_HASWELL, PTA_SIERRAFOREST,
+    M_CPU_SUBTYPE (INTEL_SIERRAFOREST), P_PROC_AVX2},
   {"knl", PROCESSOR_KNL, CPU_SLM, PTA_KNL,
     M_CPU_TYPE (INTEL_KNL), P_PROC_AVX512F},
   {"knm", PROCESSOR_KNM, CPU_SLM, PTA_KNM,
diff --git a/gcc/common/config/i386/i386-cpuinfo.h b/gcc/common/config/i386/i386-cpuinfo.h
index 5a61d817007..a71a10ebbd7 100644
--- a/gcc/common/config/i386/i386-cpuinfo.h
+++ b/gcc/common/config/i386/i386-cpuinfo.h
@@ -58,6 +58,7 @@ enum processor_types
   INTEL_TREMONT,
   AMDFAM19H,
   ZHAOXIN_FAM7H,
+  INTEL_SIERRAFOREST,
   CPU_TYPE_MAX,
   BUILTIN_CPU_TYPE_MAX = CPU_TYPE_MAX
 };
diff --git a/gcc/config.gcc b/gcc/config.gcc
index fe063bfbb26..c0e10a72bd5 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -665,7 +665,8 @@ slm nehalem westmere sandybridge ivybridge haswell broadwell bonnell \
 silvermont knl knm skylake-avx512 cannonlake icelake-client icelake-server \
 skylake goldmont goldmont-plus tremont cascadelake tigerlake cooperlake \
 sapphirerapids alderlake rocketlake eden-x2 nano nano-1000 nano-2000 nano-3000 \
-nano-x2 eden-x4 nano-x4 lujiazui x86-64 x86-64-v2 x86-64-v3 x86-64-v4 native"
+nano-x2 eden-x4 nano-x4 lujiazui x86-64 x86-64-v2 x86-64-v3 x86-64-v4 \
+sierraforest native"
 
 # Additional x86 processors supported by --with-cpu=.  Each processor
 # MUST be separated by exactly one space.
diff --git a/gcc/config/i386/driver-i386.cc b/gcc/config/i386/driver-i386.cc
index ef567045c67..be205a56ea2 100644
--- a/gcc/config/i386/driver-i386.cc
+++ b/gcc/config/i386/driver-i386.cc
@@ -589,8 +589,11 @@ const char *host_detect_local_cpu (int argc, const char **argv)
 	      /* This is unknown family 0x6 CPU.  */
 	      if (has_feature (FEATURE_AVX))
 		{
+		  /* Assume Sierra Forest.  */
+		  if (has_feature (FEATURE_AVXVNNIINT8))
+		    cpu = "sierraforest";
 		  /* Assume Tiger Lake */
-		  if (has_feature (FEATURE_AVX512VP2INTERSECT))
+		  else if (has_feature (FEATURE_AVX512VP2INTERSECT))
 		    cpu = "tigerlake";
 		  /* Assume Sapphire Rapids.  */
 		  else if (has_feature (FEATURE_TSXLDTRK))
diff --git a/gcc/config/i386/i386-c.cc b/gcc/config/i386/i386-c.cc
index 9885a724d0f..4494c412995 100644
--- a/gcc/config/i386/i386-c.cc
+++ b/gcc/config/i386/i386-c.cc
@@ -198,6 +198,10 @@ ix86_target_macros_internal (HOST_WIDE_INT isa_flag,
       def_or_undef (parse_in, "__tremont");
       def_or_undef (parse_in, "__tremont__");
       break;
+    case PROCESSOR_SIERRAFOREST:
+      def_or_undef (parse_in, "__sierraforest");
+      def_or_undef (parse_in, "__sierraforest__");
+      break;
     case PROCESSOR_KNL:
       def_or_undef (parse_in, "__knl");
       def_or_undef (parse_in, "__knl__");
@@ -377,6 +381,9 @@ ix86_target_macros_internal (HOST_WIDE_INT isa_flag,
     case PROCESSOR_TREMONT:
       def_or_undef (parse_in, "__tune_tremont__");
       break;
+    case PROCESSOR_SIERRAFOREST:
+      def_or_undef (parse_in, "__tune_sierraforest__");
+      break;
     case PROCESSOR_KNL:
       def_or_undef (parse_in, "__tune_knl__");
       break;
diff --git a/gcc/config/i386/i386-options.cc b/gcc/config/i386/i386-options.cc
index fb872afdfb5..4526dc09fc4 100644
--- a/gcc/config/i386/i386-options.cc
+++ b/gcc/config/i386/i386-options.cc
@@ -136,6 +136,7 @@ along with GCC; see the file COPYING3.  If not see
 #define m_GOLDMONT (HOST_WIDE_INT_1U<<PROCESSOR_GOLDMONT)
 #define m_GOLDMONT_PLUS (HOST_WIDE_INT_1U<<PROCESSOR_GOLDMONT_PLUS)
 #define m_TREMONT (HOST_WIDE_INT_1U<<PROCESSOR_TREMONT)
+#define m_SIERRAFOREST (HOST_WIDE_INT_1U<<PROCESSOR_SIERRAFOREST)
 #define m_INTEL (HOST_WIDE_INT_1U<<PROCESSOR_INTEL)
 
 #define m_LUJIAZUI (HOST_WIDE_INT_1U<<PROCESSOR_LUJIAZUI)
@@ -747,6 +748,7 @@ static const struct processor_costs *processor_cost_table[] =
   &slm_cost,
   &slm_cost,
   &tremont_cost,
+  &alderlake_cost,
   &slm_cost,
   &slm_cost,
   &skylake_cost,
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index 372a2cff8fe..f01bc17fefd 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -2226,6 +2226,7 @@ enum processor_type
   PROCESSOR_GOLDMONT,
   PROCESSOR_GOLDMONT_PLUS,
   PROCESSOR_TREMONT,
+  PROCESSOR_SIERRAFOREST,
   PROCESSOR_KNL,
   PROCESSOR_KNM,
   PROCESSOR_SKYLAKE,
@@ -2345,6 +2346,8 @@ constexpr wide_int_bitmask PTA_ALDERLAKE = PTA_TREMONT | PTA_ADX | PTA_AVX
   | PTA_AVX2 | PTA_BMI | PTA_BMI2 | PTA_F16C | PTA_FMA | PTA_LZCNT
   | PTA_PCONFIG | PTA_PKU | PTA_VAES | PTA_VPCLMULQDQ | PTA_SERIALIZE
   | PTA_HRESET | PTA_KL | PTA_WIDEKL | PTA_AVXVNNI;
+constexpr wide_int_bitmask PTA_SIERRAFOREST = PTA_ALDERLAKE | PTA_AVXIFMA
+  | PTA_AVXVNNIINT8 | PTA_AVXNECONVERT | PTA_CMPCCXADD;
 constexpr wide_int_bitmask PTA_KNM = PTA_KNL | PTA_AVX5124VNNIW
   | PTA_AVX5124FMAPS | PTA_AVX512VPOPCNTDQ;
 
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 34c23240dfb..adee772f7bc 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -21888,6 +21888,9 @@ Intel Atom Goldmont Plus CPU.
 @item tremont
 Intel Atom Tremont CPU.
 
+@item sierraforest
+Intel Atom Sierra Forest CPU.
+
 @item knl
 Intel Knights Landing CPU.
 
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index cbbc0201828..962c6c177b6 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -31984,6 +31984,14 @@ RDSEED, XSAVE, XSAVEC, XSAVES, XSAVEOPT, CLFLUSHOPT, FSGSBASE, PTWRITE, RDPID,
 SGX, CLWB, GFNI-SSE, MOVDIRI, MOVDIR64B, CLDEMOTE and WAITPKG instruction set
 support.
 
+@item sierraforest
+Intel Sierra Forest CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3,
+SSSE3, SSE4.1, SSE4.2, POPCNT, AES, PREFETCHW, PCLMUL, RDRND, XSAVE, XSAVEC,
+XSAVES, XSAVEOPT, FSGSBASE, PTWRITE, RDPID, SGX, GFNI-SSE, CLWB, MOVDIRI,
+MOVDIR64B, CLDEMOTE, WAITPKG, ADCX, AVX, AVX2, BMI, BMI2, F16C, FMA, LZCNT,
+PCONFIG, PKU, VAES, VPCLMULQDQ, SERIALIZE, HRESET, KL, WIDEKL, AVX-VNNI,
+AVXIFMA, AVXVNNIINT8, AVXNECONVERT and CMPCCXADD instruction set support.
+
 @item knl
 Intel Knight's Landing CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3,
 SSSE3, SSE4.1, SSE4.2, POPCNT, CX16, SAHF, FXSR, AVX, XSAVE, PCLMUL, FSGSBASE,
diff --git a/gcc/testsuite/g++.target/i386/mv16.C b/gcc/testsuite/g++.target/i386/mv16.C
index 68392872931..11530817d1c 100644
--- a/gcc/testsuite/g++.target/i386/mv16.C
+++ b/gcc/testsuite/g++.target/i386/mv16.C
@@ -92,6 +92,10 @@ int __attribute__ ((target("arch=rocketlake"))) foo () {
   return 24;
 }
 
+int __attribute__ ((target("arch=sierraforest"))) foo () {
+  return 25;
+}
+
 int main ()
 {
   int val = foo ();
@@ -130,6 +134,8 @@ int main ()
     assert (val == 23);
   else if (__builtin_cpu_is ("rocketlake"))
     assert (val == 24);
+  else if (__builtin_cpu_is ("sierraforest"))
+    assert (val == 25);
   else
     assert (val == 0);
 
diff --git a/gcc/testsuite/gcc.target/i386/funcspec-56.inc b/gcc/testsuite/gcc.target/i386/funcspec-56.inc
index 2e35a7ae50e..f7e9c243597 100644
--- a/gcc/testsuite/gcc.target/i386/funcspec-56.inc
+++ b/gcc/testsuite/gcc.target/i386/funcspec-56.inc
@@ -179,6 +179,7 @@ extern void test_arch_silvermont (void)		__attribute__((__target__("arch=silverm
 extern void test_arch_goldmont (void)		__attribute__((__target__("arch=goldmont")));
 extern void test_arch_goldmont_plus (void)	__attribute__((__target__("arch=goldmont-plus")));
 extern void test_arch_tremont (void)		__attribute__((__target__("arch=tremont")));
+extern void test_arch_sierraforest (void)       __attribute__((__target__("arch=sierraforest")));
 extern void test_arch_knl (void)		__attribute__((__target__("arch=knl")));
 extern void test_arch_knm (void)		__attribute__((__target__("arch=knm")));
 extern void test_arch_skylake (void)		__attribute__((__target__("arch=skylake")));
