diff --git a/gcc/config/aarch64/aarch64-cores.def b/gcc/config/aarch64/aarch64-cores.def
index 3055da9b268b6b71bc3bd6db721812b387e8dd44..a2062468136bf1c38b941c53868d26dafedda276 100644
--- a/gcc/config/aarch64/aarch64-cores.def
+++ b/gcc/config/aarch64/aarch64-cores.def
@@ -172,6 +172,8 @@ AARCH64_CORE("cortex-a715",  cortexa715, cortexa57, V9A,  (SVE2_BITPERM, MEMTAG,
 
 AARCH64_CORE("cortex-x2",  cortexx2, cortexa57, V9A,  (SVE2_BITPERM, MEMTAG, I8MM, BF16), neoversen2, 0x41, 0xd48, -1)
 
+AARCH64_CORE("cortex-x3",  cortexx3, cortexa57, V9A,  (SVE2_BITPERM, MEMTAG, I8MM, BF16), neoversen2, 0x41, 0xd4e, -1)
+
 AARCH64_CORE("neoverse-n2", neoversen2, cortexa57, V9A, (I8MM, BF16, SVE2_BITPERM, RNG, MEMTAG, PROFILE), neoversen2, 0x41, 0xd49, -1)
 
 AARCH64_CORE("demeter", demeter, cortexa57, V9A, (I8MM, BF16, SVE2_BITPERM, RNG, MEMTAG, PROFILE), neoversev2, 0x41, 0xd4f, -1)
diff --git a/gcc/config/aarch64/aarch64-tune.md b/gcc/config/aarch64/aarch64-tune.md
index 22ec1be5a4c71b930221d2c4f1e62df57df0cadf..74c4384712b202058a58f1da0ca28adec97a6b9b 100644
--- a/gcc/config/aarch64/aarch64-tune.md
+++ b/gcc/config/aarch64/aarch64-tune.md
@@ -1,5 +1,5 @@
 ;; -*- buffer-read-only: t -*-
 ;; Generated automatically by gentune.sh from aarch64-cores.def
 (define_attr "tune"
-	"cortexa34,cortexa35,cortexa53,cortexa57,cortexa72,cortexa73,thunderx,thunderxt88p1,thunderxt88,octeontx,octeontxt81,octeontxt83,thunderxt81,thunderxt83,ampere1,emag,xgene1,falkor,qdf24xx,exynosm1,phecda,thunderx2t99p1,vulcan,thunderx2t99,cortexa55,cortexa75,cortexa76,cortexa76ae,cortexa77,cortexa78,cortexa78ae,cortexa78c,cortexa65,cortexa65ae,cortexx1,cortexx1c,ares,neoversen1,neoversee1,octeontx2,octeontx2t98,octeontx2t96,octeontx2t93,octeontx2f95,octeontx2f95n,octeontx2f95mm,a64fx,tsv110,thunderx3t110,zeus,neoversev1,neoverse512tvb,saphira,cortexa57cortexa53,cortexa72cortexa53,cortexa73cortexa35,cortexa73cortexa53,cortexa75cortexa55,cortexa76cortexa55,cortexr82,cortexa510,cortexa710,cortexa715,cortexx2,neoversen2,demeter,neoversev2"
+	"cortexa34,cortexa35,cortexa53,cortexa57,cortexa72,cortexa73,thunderx,thunderxt88p1,thunderxt88,octeontx,octeontxt81,octeontxt83,thunderxt81,thunderxt83,ampere1,emag,xgene1,falkor,qdf24xx,exynosm1,phecda,thunderx2t99p1,vulcan,thunderx2t99,cortexa55,cortexa75,cortexa76,cortexa76ae,cortexa77,cortexa78,cortexa78ae,cortexa78c,cortexa65,cortexa65ae,cortexx1,cortexx1c,ares,neoversen1,neoversee1,octeontx2,octeontx2t98,octeontx2t96,octeontx2t93,octeontx2f95,octeontx2f95n,octeontx2f95mm,a64fx,tsv110,thunderx3t110,zeus,neoversev1,neoverse512tvb,saphira,cortexa57cortexa53,cortexa72cortexa53,cortexa73cortexa35,cortexa73cortexa53,cortexa75cortexa55,cortexa76cortexa55,cortexr82,cortexa510,cortexa710,cortexa715,cortexx2,cortexx3,neoversen2,demeter,neoversev2"
 	(const (symbol_ref "((enum attr_tune) aarch64_tune)")))
diff --git a/gcc/doc/gcc/gcc-command-options/machine-dependent-options/aarch64-options.rst b/gcc/doc/gcc/gcc-command-options/machine-dependent-options/aarch64-options.rst
index d97515d9e54feaa85a2ead4e9b73f0eb966cb39f..7cc369ef95e510e30873159b8e2130c4f77a57d3 100644
--- a/gcc/doc/gcc/gcc-command-options/machine-dependent-options/aarch64-options.rst
+++ b/gcc/doc/gcc/gcc-command-options/machine-dependent-options/aarch64-options.rst
@@ -258,8 +258,8 @@ These options are defined for AArch64 implementations:
   :samp:`cortex-a73.cortex-a35`, :samp:`cortex-a73.cortex-a53`,
   :samp:`cortex-a75.cortex-a55`, :samp:`cortex-a76.cortex-a55`,
   :samp:`cortex-r82`, :samp:`cortex-x1`, :samp:`cortex-x1c`, :samp:`cortex-x2`,
-  :samp:`cortex-a510`, :samp:`cortex-a710`, :samp:`cortex-a715`, :samp:`ampere1`,
-  :samp:`native`.
+  :samp:`cortex-x3`, :samp:`cortex-a510`, :samp:`cortex-a710`,
+  :samp:`cortex-a715`, :samp:`ampere1`, :samp:`native`.
 
   The values :samp:`cortex-a57.cortex-a53`, :samp:`cortex-a72.cortex-a53`,
   :samp:`cortex-a73.cortex-a35`, :samp:`cortex-a73.cortex-a53`,