gcc/ChangeLog:

        * common/config/i386/cpuinfo.h (get_available_features):
        Add avx10_set and version and detect avx10.1.
        (cpu_indicator_init): Handle avx10.1-512.
        * common/config/i386/i386-common.cc
        (OPTION_MASK_ISA2_AVX10_512BIT_SET): New.
        (OPTION_MASK_ISA2_AVX10_1_SET): Ditto.
        (OPTION_MASK_ISA2_AVX10_512BIT_UNSET): Ditto.
        (OPTION_MASK_ISA2_AVX10_1_UNSET): Ditto.
        (OPTION_MASK_ISA2_AVX2_UNSET): Modify for AVX10_1.
        (ix86_handle_option): Handle -mavx10.1, -mavx10.1-256 and
        -mavx10.1-512.
        * common/config/i386/i386-cpuinfo.h (enum processor_features):
        Add FEATURE_AVX10_512BIT, FEATURE_AVX10_1 and
        FEATURE_AVX10_512BIT.
        * common/config/i386/i386-isas.h: Add ISA_NAME_TABLE_ENTRY for
        AVX10_512BIT, AVX10_1 and AVX10_1_512.
        * config/i386/constraints.md (Yk): Add AVX10_1.
        (Yv): Ditto.
        (k): Ditto.
        * config/i386/cpuid.h (bit_AVX10): New.
        (bit_AVX10_256): Ditto.
        (bit_AVX10_512): Ditto.
        * config/i386/i386-c.cc (ix86_target_macros_internal):
        Define AVX10_512BIT and AVX10_1.
        * config/i386/i386-isa.def
        (AVX10_512BIT): Add DEF_PTA(AVX10_512BIT).
        (AVX10_1): Add DEF_PTA(AVX10_1).
        * config/i386/i386-options.cc (isa2_opts): Add -mavx10.1.
        (ix86_valid_target_attribute_inner_p): Handle avx10-512bit, avx10.1
        and avx10.1-512.
        (ix86_option_override_internal): Enable AVX512{F,VL,BW,DQ,CD,BF16,
        FP16,VBMI,VBMI2,VNNI,IFMA,BITALG,VPOPCNTDQ} features for avx10.1-512.
        (ix86_valid_target_attribute_inner_p): Handle AVX10_1.
        * config/i386/i386.cc (ix86_get_ssemov): Add AVX10_1.
        (ix86_conditional_register_usage): Ditto.
        (ix86_hard_regno_mode_ok): Ditto.
        (ix86_rtx_costs): Ditto.
        * config/i386/i386.h (VALID_MASK_AVX10_MODE): New macro.
        * config/i386/i386.opt: Add option -mavx10.1, -mavx10.1-256 and
        -mavx10.1-512.
        * doc/extend.texi: Document avx10.1, avx10.1-256 and avx10.1-512.
        * doc/invoke.texi: Document -mavx10.1, -mavx10.1-256 and -mavx10.1-512.
        * doc/sourcebuild.texi: Document target avx10.1, avx10.1-256
        and avx10.1-512.

gcc/testsuite/ChangeLog:

        * g++.target/i386/mv33.C: New test.
        * gcc.target/i386/avx10_1-1.c: Ditto.
        * gcc.target/i386/avx10_1-2.c: Ditto.
        * gcc.target/i386/avx10_1-3.c: Ditto.
        * gcc.target/i386/avx10_1-4.c: Ditto.
        * gcc.target/i386/avx10_1-5.c: Ditto.
        * gcc.target/i386/avx10_1-6.c: Ditto.
        * gcc.target/i386/avx10_1-7.c: Ditto.
        * gcc.target/i386/avx10_1-8.c: Ditto.
        * gcc.target/i386/avx10_1-9.c: Ditto.
        * gcc.target/i386/avx10_1-10.c: Ditto.
---
 gcc/common/config/i386/cpuinfo.h           | 36 +++++++++++++++
 gcc/common/config/i386/i386-common.cc      | 53 +++++++++++++++++++++-
 gcc/common/config/i386/i386-cpuinfo.h      |  3 ++
 gcc/common/config/i386/i386-isas.h         |  5 ++
 gcc/config/i386/constraints.md             |  6 +--
 gcc/config/i386/cpuid.h                    |  6 +++
 gcc/config/i386/i386-c.cc                  |  4 ++
 gcc/config/i386/i386-isa.def               |  2 +
 gcc/config/i386/i386-options.cc            | 26 ++++++++++-
 gcc/config/i386/i386.cc                    | 18 ++++++--
 gcc/config/i386/i386.h                     |  3 ++
 gcc/config/i386/i386.opt                   | 19 ++++++++
 gcc/doc/extend.texi                        | 13 ++++++
 gcc/doc/invoke.texi                        | 16 +++++--
 gcc/doc/sourcebuild.texi                   |  9 ++++
 gcc/testsuite/g++.target/i386/mv33.C       | 30 ++++++++++++
 gcc/testsuite/gcc.target/i386/avx10_1-1.c  | 22 +++++++++
 gcc/testsuite/gcc.target/i386/avx10_1-10.c | 13 ++++++
 gcc/testsuite/gcc.target/i386/avx10_1-2.c  | 13 ++++++
 gcc/testsuite/gcc.target/i386/avx10_1-3.c  | 13 ++++++
 gcc/testsuite/gcc.target/i386/avx10_1-4.c  | 13 ++++++
 gcc/testsuite/gcc.target/i386/avx10_1-5.c  | 13 ++++++
 gcc/testsuite/gcc.target/i386/avx10_1-6.c  | 13 ++++++
 gcc/testsuite/gcc.target/i386/avx10_1-7.c  | 13 ++++++
 gcc/testsuite/gcc.target/i386/avx10_1-8.c  |  4 ++
 gcc/testsuite/gcc.target/i386/avx10_1-9.c  | 13 ++++++
 26 files changed, 366 insertions(+), 13 deletions(-)
 create mode 100644 gcc/testsuite/g++.target/i386/mv33.C
 create mode 100644 gcc/testsuite/gcc.target/i386/avx10_1-1.c
 create mode 100644 gcc/testsuite/gcc.target/i386/avx10_1-10.c
 create mode 100644 gcc/testsuite/gcc.target/i386/avx10_1-2.c
 create mode 100644 gcc/testsuite/gcc.target/i386/avx10_1-3.c
 create mode 100644 gcc/testsuite/gcc.target/i386/avx10_1-4.c
 create mode 100644 gcc/testsuite/gcc.target/i386/avx10_1-5.c
 create mode 100644 gcc/testsuite/gcc.target/i386/avx10_1-6.c
 create mode 100644 gcc/testsuite/gcc.target/i386/avx10_1-7.c
 create mode 100644 gcc/testsuite/gcc.target/i386/avx10_1-8.c
 create mode 100644 gcc/testsuite/gcc.target/i386/avx10_1-9.c

diff --git a/gcc/common/config/i386/cpuinfo.h b/gcc/common/config/i386/cpuinfo.h
index 30ef0d334ca..5abff83b4ca 100644
--- a/gcc/common/config/i386/cpuinfo.h
+++ b/gcc/common/config/i386/cpuinfo.h
@@ -688,6 +688,9 @@ get_available_features (struct __processor_model *cpu_model,
   int amx_usable = 0;
   /* Check if KL is usable.  */
   int has_kl = 0;
+  /* Record AVX10 version.  */
+  int avx10_set = 0;
+  int version = 0;
   if ((ecx & bit_OSXSAVE))
     {
       /* Check if XMM, YMM, OPMASK, upper 256 bits of ZMM0-ZMM15 and
@@ -906,6 +909,9 @@ get_available_features (struct __processor_model *cpu_model,
        {
          if (eax & bit_AVX512BF16)
            set_feature (FEATURE_AVX512BF16);
+         /* AVX10 has the same XSTATE with AVX512.  */
+         if (edx & bit_AVX10)
+           avx10_set = 1;
        }
       if (amx_usable)
        {
@@ -951,6 +957,24 @@ get_available_features (struct __processor_model 
*cpu_model,
        }
     }
 
+  /* Get Advanced Features at level 0x24 (eax = 0x24).  */
+  if (avx10_set && max_cpuid_level >= 0x24)
+    {
+      __cpuid (0x18, eax, ebx, ecx, edx);
+      version = ebx & 0xff;
+      if (ebx & bit_AVX10_256)
+       switch (version)
+         {
+         case 1:
+           set_feature (FEATURE_AVX10_1);
+           break;
+         default:
+           gcc_unreachable ();
+         }
+      if (ebx & bit_AVX10_512)
+       set_feature (FEATURE_AVX10_512BIT);
+    }
+
   /* Check cpuid level of extended features.  */
   __cpuid (0x80000000, ext_level, ebx, ecx, edx);
 
@@ -1155,6 +1179,18 @@ cpu_indicator_init (struct __processor_model *cpu_model,
        }
     }
 
+#define SET_AVX10_512(A,B) \
+  if (has_cpu_feature (cpu_model, cpu_features2, FEATURE_AVX10_##A)) \
+    { \
+      CHECK___builtin_cpu_supports (B); \
+      set_cpu_feature (cpu_model, cpu_features2, FEATURE_AVX10_##A##_512); \
+    }
+
+  if (has_cpu_feature (cpu_model, cpu_features2, FEATURE_AVX10_512BIT))
+    SET_AVX10_512 (1, "avx10.1-512");
+
+#undef SET_AVX10_512
+
   gcc_assert (cpu_model->__cpu_vendor < VENDOR_MAX);
   gcc_assert (cpu_model->__cpu_type < CPU_TYPE_MAX);
   gcc_assert (cpu_model->__cpu_subtype < CPU_SUBTYPE_MAX);
diff --git a/gcc/common/config/i386/i386-common.cc 
b/gcc/common/config/i386/i386-common.cc
index 26005914079..6c3bebb1846 100644
--- a/gcc/common/config/i386/i386-common.cc
+++ b/gcc/common/config/i386/i386-common.cc
@@ -123,6 +123,8 @@ along with GCC; see the file COPYING3.  If not see
 #define OPTION_MASK_ISA2_SM3_SET OPTION_MASK_ISA2_SM3
 #define OPTION_MASK_ISA2_SHA512_SET OPTION_MASK_ISA2_SHA512
 #define OPTION_MASK_ISA2_SM4_SET OPTION_MASK_ISA2_SM4
+#define OPTION_MASK_ISA2_AVX10_512BIT_SET OPTION_MASK_ISA2_AVX10_512BIT
+#define OPTION_MASK_ISA2_AVX10_1_SET OPTION_MASK_ISA2_AVX10_1
 
 /* SSE4 includes both SSE4.1 and SSE4.2. -msse4 should be the same
    as -msse4.2.  */
@@ -232,7 +234,8 @@ along with GCC; see the file COPYING3.  If not see
 #define OPTION_MASK_ISA2_AVX2_UNSET \
   (OPTION_MASK_ISA2_AVXIFMA_UNSET | OPTION_MASK_ISA2_AVXVNNI_UNSET \
    | OPTION_MASK_ISA2_AVXVNNIINT8_UNSET | OPTION_MASK_ISA2_AVXNECONVERT_UNSET \
-   | OPTION_MASK_ISA2_AVXVNNIINT16_UNSET | OPTION_MASK_ISA2_AVX512F_UNSET)
+   | OPTION_MASK_ISA2_AVXVNNIINT16_UNSET | OPTION_MASK_ISA2_AVX512F_UNSET \
+   | OPTION_MASK_ISA2_AVX10_1_UNSET)
 #define OPTION_MASK_ISA_AVX512F_UNSET \
   (OPTION_MASK_ISA_AVX512F | OPTION_MASK_ISA_AVX512CD_UNSET \
    | OPTION_MASK_ISA_AVX512PF_UNSET | OPTION_MASK_ISA_AVX512ER_UNSET \
@@ -309,6 +312,8 @@ along with GCC; see the file COPYING3.  If not see
 #define OPTION_MASK_ISA2_SM3_UNSET OPTION_MASK_ISA2_SM3
 #define OPTION_MASK_ISA2_SHA512_UNSET OPTION_MASK_ISA2_SHA512
 #define OPTION_MASK_ISA2_SM4_UNSET OPTION_MASK_ISA2_SM4
+#define OPTION_MASK_ISA2_AVX10_512BIT_UNSET OPTION_MASK_ISA2_AVX10_512BIT
+#define OPTION_MASK_ISA2_AVX10_1_UNSET OPTION_MASK_ISA2_AVX10_1
 
 /* SSE4 includes both SSE4.1 and SSE4.2.  -mno-sse4 should the same
    as -mno-sse4.1. */
@@ -1341,6 +1346,52 @@ ix86_handle_option (struct gcc_options *opts,
        }
       return true;
 
+    case OPT_mavx10_max_512bit:
+      if (value)
+       {
+         opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_AVX10_512BIT_SET;
+         opts->x_ix86_isa_flags2_explicit |= OPTION_MASK_ISA2_AVX10_512BIT_SET;
+       }
+      else
+       {
+         opts->x_ix86_isa_flags2 &= ~OPTION_MASK_ISA2_AVX10_512BIT_UNSET;
+         opts->x_ix86_isa_flags2_explicit |= 
OPTION_MASK_ISA2_AVX10_512BIT_UNSET;
+       }
+      return true;
+
+    case OPT_mavx10_1:
+      if (value)
+       {
+         opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_AVX10_1_SET;
+         opts->x_ix86_isa_flags2_explicit |= OPTION_MASK_ISA2_AVX10_1_SET;
+         opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX2_SET;
+         opts->x_ix86_isa_flags_explicit |= OPTION_MASK_ISA_AVX2_SET;
+       }
+      else
+       {
+         opts->x_ix86_isa_flags2 &= ~OPTION_MASK_ISA2_AVX10_1_UNSET;
+         opts->x_ix86_isa_flags2_explicit |= OPTION_MASK_ISA2_AVX10_1_UNSET;
+       }
+      return true;
+
+    case OPT_mavx10_1_256:
+      opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_AVX10_1_SET;
+      opts->x_ix86_isa_flags2_explicit |= OPTION_MASK_ISA2_AVX10_1_SET;
+      opts->x_ix86_isa_flags2 &= ~OPTION_MASK_ISA2_AVX10_512BIT_SET;
+      opts->x_ix86_isa_flags2_explicit |= OPTION_MASK_ISA2_AVX10_512BIT_SET;
+      opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX2_SET;
+      opts->x_ix86_isa_flags_explicit |= OPTION_MASK_ISA_AVX2_SET;
+      return true;
+
+    case OPT_mavx10_1_512:
+      opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_AVX10_1_SET;
+      opts->x_ix86_isa_flags2_explicit |= OPTION_MASK_ISA2_AVX10_1_SET;
+      opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_AVX10_512BIT_SET;
+      opts->x_ix86_isa_flags2_explicit |= OPTION_MASK_ISA2_AVX10_512BIT_SET;
+      opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AVX2_SET;
+      opts->x_ix86_isa_flags_explicit |= OPTION_MASK_ISA_AVX2_SET;
+      return true;
+
     case OPT_mfma:
       if (value)
        {
diff --git a/gcc/common/config/i386/i386-cpuinfo.h 
b/gcc/common/config/i386/i386-cpuinfo.h
index 9153b4d0a54..8fbfb38baed 100644
--- a/gcc/common/config/i386/i386-cpuinfo.h
+++ b/gcc/common/config/i386/i386-cpuinfo.h
@@ -261,6 +261,9 @@ enum processor_features
   FEATURE_SM3,
   FEATURE_SHA512,
   FEATURE_SM4,
+  FEATURE_AVX10_512BIT,
+  FEATURE_AVX10_1,
+  FEATURE_AVX10_1_512,
   CPU_FEATURE_MAX
 };
 
diff --git a/gcc/common/config/i386/i386-isas.h 
b/gcc/common/config/i386/i386-isas.h
index 2297903a45e..35be0cc3f2a 100644
--- a/gcc/common/config/i386/i386-isas.h
+++ b/gcc/common/config/i386/i386-isas.h
@@ -191,4 +191,9 @@ ISA_NAMES_TABLE_START
   ISA_NAMES_TABLE_ENTRY("sm3", FEATURE_SM3, P_NONE, "-msm3")
   ISA_NAMES_TABLE_ENTRY("sha512", FEATURE_SHA512, P_NONE, "-msha512")
   ISA_NAMES_TABLE_ENTRY("sm4", FEATURE_SM4, P_NONE, "-msm4")
+  ISA_NAMES_TABLE_ENTRY("avx10-max-512bit", FEATURE_AVX10_512BIT,
+                       P_NONE, "-mavx10-max-512bit")
+  ISA_NAMES_TABLE_ENTRY("avx10.1", FEATURE_AVX10_1, P_NONE, "-mavx10.1")
+  ISA_NAMES_TABLE_ENTRY("avx10.1-256", FEATURE_AVX10_1, P_NONE, NULL)
+  ISA_NAMES_TABLE_ENTRY("avx10.1-512", FEATURE_AVX10_1_512, P_NONE, NULL)
 ISA_NAMES_TABLE_END
diff --git a/gcc/config/i386/constraints.md b/gcc/config/i386/constraints.md
index fd490f39110..4be6bc4816a 100644
--- a/gcc/config/i386/constraints.md
+++ b/gcc/config/i386/constraints.md
@@ -78,10 +78,10 @@
  "TARGET_80387 || TARGET_FLOAT_RETURNS_IN_80387 ? FP_SECOND_REG : NO_REGS"
  "Second from top of 80387 floating-point stack (@code{%st(1)}).")
 
-(define_register_constraint "Yk" "TARGET_AVX512F ? MASK_REGS : NO_REGS"
+(define_register_constraint "Yk" "(TARGET_AVX512F || TARGET_AVX10_1) ? 
MASK_REGS : NO_REGS"
 "@internal Any mask register that can be used as predicate, i.e. k1-k7.")
 
-(define_register_constraint "k" "TARGET_AVX512F ? ALL_MASK_REGS : NO_REGS"
+(define_register_constraint "k" "(TARGET_AVX512F || TARGET_AVX10_1) ? 
ALL_MASK_REGS : NO_REGS"
 "@internal Any mask register.")
 
 ;; Vector registers (also used for plain floating point nowadays).
@@ -146,7 +146,7 @@
  "@internal Lower SSE register when avoiding REX prefix and all SSE registers 
otherwise.")
 
 (define_register_constraint "Yv"
- "TARGET_AVX512VL ? ALL_SSE_REGS : TARGET_SSE ? SSE_REGS : NO_REGS"
+ "(TARGET_AVX512VL || TARGET_AVX10_1) ? ALL_SSE_REGS : TARGET_SSE ? SSE_REGS : 
NO_REGS"
  "@internal For AVX512VL, any EVEX encodable SSE register 
(@code{%xmm0-%xmm31}), otherwise any SSE register.")
 
 (define_register_constraint "Yw"
diff --git a/gcc/config/i386/cpuid.h b/gcc/config/i386/cpuid.h
index 73c15480350..ca5551cefca 100644
--- a/gcc/config/i386/cpuid.h
+++ b/gcc/config/i386/cpuid.h
@@ -149,6 +149,7 @@
 #define bit_AVXNECONVERT       (1 << 5)
 #define bit_AVXVNNIINT16       (1 << 10)
 #define bit_PREFETCHI  (1 << 14)
+#define bit_AVX10      (1 << 19)
 
 /* Extended State Enumeration Sub-leaf (%eax == 0xd, %ecx == 1) */
 #define bit_XSAVEOPT   (1 << 0)
@@ -159,6 +160,11 @@
 /* %ebx */
 #define bit_PTWRITE    (1 << 4)
 
+/* AVX10 sub leaf (%eax == 0x18) */
+/* %ebx */
+#define bit_AVX10_256  (1 << 17)
+#define bit_AVX10_512  (1 << 18)
+
 /* Keylocker leaf (%eax == 0x19) */
 /* %ebx */
 #define bit_AESKLE     ( 1<<0 )
diff --git a/gcc/config/i386/i386-c.cc b/gcc/config/i386/i386-c.cc
index 257950582c2..caef5531593 100644
--- a/gcc/config/i386/i386-c.cc
+++ b/gcc/config/i386/i386-c.cc
@@ -692,6 +692,10 @@ ix86_target_macros_internal (HOST_WIDE_INT isa_flag,
     def_or_undef (parse_in, "__SHA512__");
   if (isa_flag2 & OPTION_MASK_ISA2_SM4)
     def_or_undef (parse_in, "__SM4__");
+  if (isa_flag2 & OPTION_MASK_ISA2_AVX10_512BIT)
+    def_or_undef (parse_in, "__AVX10_512BIT__");
+  if (isa_flag2 & OPTION_MASK_ISA2_AVX10_1)
+    def_or_undef (parse_in, "__AVX10_1__");
   if (TARGET_IAMCU)
     {
       def_or_undef (parse_in, "__iamcu");
diff --git a/gcc/config/i386/i386-isa.def b/gcc/config/i386/i386-isa.def
index aeafcf870ac..f7d741746c3 100644
--- a/gcc/config/i386/i386-isa.def
+++ b/gcc/config/i386/i386-isa.def
@@ -121,3 +121,5 @@ DEF_PTA(AVXVNNIINT16)
 DEF_PTA(SM3)
 DEF_PTA(SHA512)
 DEF_PTA(SM4)
+DEF_PTA(AVX10_512BIT)
+DEF_PTA(AVX10_1)
diff --git a/gcc/config/i386/i386-options.cc b/gcc/config/i386/i386-options.cc
index 127ee24203c..b2281fbd4b5 100644
--- a/gcc/config/i386/i386-options.cc
+++ b/gcc/config/i386/i386-options.cc
@@ -243,7 +243,9 @@ static struct ix86_target_opts isa2_opts[] =
   { "-mavxvnniint16",  OPTION_MASK_ISA2_AVXVNNIINT16 },
   { "-msm3",           OPTION_MASK_ISA2_SM3 },
   { "-msha512",                OPTION_MASK_ISA2_SHA512 },
-  { "-msm4",            OPTION_MASK_ISA2_SM4 }
+  { "-msm4",            OPTION_MASK_ISA2_SM4 },
+  { "-mavx10-max-512bit",      OPTION_MASK_ISA2_AVX10_512BIT },
+  { "-mavx10.1",       OPTION_MASK_ISA2_AVX10_1 }
 };
 static struct ix86_target_opts isa_opts[] =
 {
@@ -983,7 +985,7 @@ ix86_valid_target_attribute_inner_p (tree fndecl, tree 
args, char *p_strings[],
     ix86_opt_ix86_no,
     ix86_opt_str,
     ix86_opt_enum,
-    ix86_opt_isa
+    ix86_opt_isa,
   };
 
   static const struct
@@ -1100,6 +1102,10 @@ ix86_valid_target_attribute_inner_p (tree fndecl, tree 
args, char *p_strings[],
     IX86_ATTR_ISA ("sm3", OPT_msm3),
     IX86_ATTR_ISA ("sha512", OPT_msha512),
     IX86_ATTR_ISA ("sm4", OPT_msm4),
+    IX86_ATTR_ISA ("avx10-max-512bit", OPT_mavx10_max_512bit),
+    IX86_ATTR_ISA ("avx10.1", OPT_mavx10_1),
+    IX86_ATTR_ISA ("avx10.1-256", OPT_mavx10_1_256),
+    IX86_ATTR_ISA ("avx10.1-512", OPT_mavx10_1_512),
 
     /* enum options */
     IX86_ATTR_ENUM ("fpmath=", OPT_mfpmath_),
@@ -2524,6 +2530,22 @@ ix86_option_override_internal (bool main_args_p,
       &= ~((OPTION_MASK_ISA_BMI | OPTION_MASK_ISA_BMI2 | OPTION_MASK_ISA_TBM)
           & ~opts->x_ix86_isa_flags_explicit);
 
+  /* Enable AVX512{F,VL,BW,DQ,CD,BF16,FP16,VBMI,VBMI2,VNNI,IFMA,BITALG,
+     VPOPCNTDQ} features for AVX10.1/512.  */
+  if (TARGET_AVX10_1_P (opts->x_ix86_isa_flags2)
+      && TARGET_AVX10_512BIT_P (opts->x_ix86_isa_flags2))
+    {
+      opts->x_ix86_isa_flags
+       |= OPTION_MASK_ISA_AVX512F | OPTION_MASK_ISA_AVX512CD
+           | OPTION_MASK_ISA_AVX512DQ | OPTION_MASK_ISA_AVX512BW
+           | OPTION_MASK_ISA_AVX512VL | OPTION_MASK_ISA_AVX512IFMA
+           | OPTION_MASK_ISA_AVX512VBMI | OPTION_MASK_ISA_AVX512VBMI2
+           | OPTION_MASK_ISA_AVX512VNNI | OPTION_MASK_ISA_AVX512VPOPCNTDQ
+           | OPTION_MASK_ISA_AVX512BITALG;
+      opts->x_ix86_isa_flags2
+       |= OPTION_MASK_ISA2_AVX512FP16 | OPTION_MASK_ISA2_AVX512BF16;
+    }
+
   /* Validate -mpreferred-stack-boundary= value or default it to
      PREFERRED_STACK_BOUNDARY_DEFAULT.  */
   ix86_preferred_stack_boundary = PREFERRED_STACK_BOUNDARY_DEFAULT;
diff --git a/gcc/config/i386/i386.cc b/gcc/config/i386/i386.cc
index 5d57726e22c..e75614b993d 100644
--- a/gcc/config/i386/i386.cc
+++ b/gcc/config/i386/i386.cc
@@ -513,8 +513,8 @@ ix86_conditional_register_usage (void)
   if (! (TARGET_80387 || TARGET_FLOAT_RETURNS_IN_80387))
     accessible_reg_set &= ~reg_class_contents[FLOAT_REGS];
 
-  /* If AVX512F is disabled, disable the registers.  */
-  if (! TARGET_AVX512F)
+  /* If AVX512F and AVX10 is disabled, disable the registers.  */
+  if (!TARGET_AVX512F && !TARGET_AVX10_1)
     {
       for (i = FIRST_EXT_REX_SSE_REG; i <= LAST_EXT_REX_SSE_REG; i++)
        CLEAR_HARD_REG_BIT (accessible_reg_set, i);
@@ -5490,6 +5490,7 @@ ix86_get_ssemov (rtx *operands, unsigned size,
      we can only use zmm register move without memory operand.  */
   if (evex_reg_p
       && !TARGET_AVX512VL
+      && !TARGET_AVX10_1
       && GET_MODE_SIZE (mode) < 64)
     {
       /* NB: Even though ix86_hard_regno_mode_ok doesn't allow
@@ -20259,7 +20260,8 @@ ix86_hard_regno_mode_ok (unsigned int regno, 
machine_mode mode)
 
       return ((TARGET_AVX512F && VALID_MASK_REG_MODE (mode))
              || (TARGET_AVX512BW
-                 && VALID_MASK_AVX512BW_MODE (mode)));
+                 && VALID_MASK_AVX512BW_MODE (mode))
+             || (TARGET_AVX10_1 && VALID_MASK_AVX10_MODE (mode)));
     }
 
   if (GET_MODE_CLASS (mode) == MODE_PARTIAL_INT)
@@ -20294,6 +20296,13 @@ ix86_hard_regno_mode_ok (unsigned int regno, 
machine_mode mode)
              || VALID_AVX512VL_128_REG_MODE (mode)))
        return true;
 
+      /* AVX10_1 allows sse regs16+ for 256 bit modes.  */
+      if (TARGET_AVX10_1
+         && (VALID_AVX256_REG_OR_OI_MODE (mode)
+             || VALID_AVX512VL_128_REG_MODE (mode)
+             || VALID_AVX512F_SCALAR_MODE (mode)))
+       return true;
+
       /* xmm16-xmm31 are only available for AVX-512.  */
       if (EXT_REX_SSE_REGNO_P (regno))
        return false;
@@ -21584,7 +21593,8 @@ ix86_rtx_costs (rtx x, machine_mode mode, int 
outer_code_i, int opno,
       mask = XEXP (x, 2);
       /* This is masked instruction, assume the same cost,
         as nonmasked variant.  */
-      if (TARGET_AVX512F && register_operand (mask, GET_MODE (mask)))
+      if ((TARGET_AVX512F || TARGET_AVX10_1)
+         && register_operand (mask, GET_MODE (mask)))
        *total = rtx_cost (XEXP (x, 0), mode, outer_code, opno, speed);
       else
        *total = cost->sse_op;
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index ef342fcee9b..77b50913458 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -1080,6 +1080,9 @@ extern const char *host_detect_local_cpu (int argc, const 
char **argv);
 
 #define VALID_MASK_AVX512BW_MODE(MODE) ((MODE) == SImode || (MODE) == DImode)
 
+#define VALID_MASK_AVX10_MODE(MODE) ((MODE) == SImode || (MODE) == HImode \
+                                      || (MODE) == QImode)
+
 #define VALID_FP_MODE_P(MODE)                                          \
   ((MODE) == SFmode || (MODE) == DFmode || (MODE) == XFmode            \
    || (MODE) == SCmode || (MODE) == DCmode || (MODE) == XCmode)
diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt
index 1cc8563477a..0ce8e6204ff 100644
--- a/gcc/config/i386/i386.opt
+++ b/gcc/config/i386/i386.opt
@@ -1298,3 +1298,22 @@ msm4
 Target Mask(ISA2_SM4) Var(ix86_isa_flags2) Save
 Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX and
 SM4 built-in functions and code generation.
+
+mavx10-max-512bit
+Target Mask(ISA2_AVX10_512BIT) Var(ix86_isa_flags2) Save
+Indicates 512 bit vector width support for AVX10.
+
+mavx10.1
+Target Mask(ISA2_AVX10_1) Var(ix86_isa_flags2) Save
+Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2,
+and AVX10.1 built-in functions and code generation.
+
+mavx10.1-256
+Target RejectNegative
+Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2,
+and AVX10.1 built-in functions and code generation.
+
+mavx10.1-512
+Target RejectNegative
+Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2,
+and AVX10.1-512 built-in functions and code generation.
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 89c5b4ea2b2..08e8b3b761c 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -7184,6 +7184,19 @@ Enable/disable the generation of the SHA512 instructions.
 @itemx no-sm4
 Enable/disable the generation of the SM4 instructions.
 
+@cindex @code{target("avx10.1")} function attribute, x86
+@item avx10.1
+@itemx no-avx10.1
+Enable/disable the generation of the AVX10.1 instructions.
+
+@cindex @code{target("avx10.1-256")} function attribute, x86
+@item avx10.1-256
+Enable the generation of the AVX10.1 instructions.
+
+@cindex @code{target("avx10.1-512")} function attribute, x86
+@item avx10.1-512
+Enable the generation of the AVX10.1 512 bit instructions.
+
 @cindex @code{target("cld")} function attribute, x86
 @item cld
 @itemx no-cld
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 674f956f4b8..43b6210c3c8 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -1436,6 +1436,7 @@ See RS/6000 and PowerPC Options.
 -mamx-tile  -mamx-int8  -mamx-bf16 -muintr -mhreset -mavxvnni
 -mavx512fp16 -mavxifma -mavxvnniint8 -mavxneconvert -mcmpccxadd -mamx-fp16
 -mprefetchi -mraoint -mamx-complex -mavxvnniint16 -msm3 -msha512 -msm4
+-mavx10.1 -mavx10.1-256 -mavx10.1-512
 -mcldemote  -mms-bitfields  -mno-align-stringops  -minline-all-stringops
 -minline-stringops-dynamically  -mstringop-strategy=@var{alg}
 -mkl -mwidekl
@@ -33670,6 +33671,15 @@ preferred alignment to 
@option{-mpreferred-stack-boundary=2}.
 @need 200
 @opindex msm4
 @itemx -msm4
+@need 200
+@opindex mavx10.1
+@itemx -mavx10.1
+@need 200
+@opindex mavx10.1-256
+@itemx -mavx10.1-256
+@need 200
+@opindex mavx10.1-512
+@itemx -mavx10.1-512
 These switches enable the use of instructions in the MMX, SSE,
 AVX512ER, AVX512CD, AVX512VL, AVX512BW, AVX512DQ, AVX512IFMA, AVX512VBMI, SHA,
 AES, PCLMUL, CLFLUSHOPT, CLWB, FSGSBASE, PTWRITE, RDRND, F16C, FMA, PCONFIG,
@@ -33680,9 +33690,9 @@ GFNI, VAES, WAITPKG, VPCLMULQDQ, AVX512BITALG, MOVDIRI, 
MOVDIR64B, AVX512BF16,
 ENQCMD, AVX512VPOPCNTDQ, AVX5124FMAPS, AVX512VNNI, AVX5124VNNIW, SERIALIZE,
 UINTR, HRESET, AMXTILE, AMXINT8, AMXBF16, KL, WIDEKL, AVXVNNI, AVX512-FP16,
 AVXIFMA, AVXVNNIINT8, AVXNECONVERT, CMPCCXADD, AMX-FP16, PREFETCHI, RAOINT,
-AMX-COMPLEX, AVXVNNIINT16, SM3, SHA512, SM4 or CLDEMOTE extended instruction
-sets. Each has a corresponding @option{-mno-} option to disable use of these
-instructions.
+AMX-COMPLEX, AVXVNNIINT16, SM3, SHA512, SM4, AVX10.1 or CLDEMOTE extended
+instruction sets. Each has a corresponding @option{-mno-} option to disable
+use of these instructions.
 
 These extensions are also available as built-in functions: see
 @ref{x86 Built-in Functions}, for details of the functions enabled and
diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index 1a78b3c1abb..cab8065cd8e 100644
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -2484,6 +2484,15 @@ Target supports compiling @code{avx} instructions.
 @item avx_runtime
 Target supports the execution of @code{avx} instructions.
 
+@item avx10.1
+Target supports the execution of @code{avx10.1} instructions.
+
+@item avx10.1-256
+Target supports the execution of @code{avx10.1} instructions.
+
+@item avx10.1-512
+Target supports the execution of @code{avx10.1-512} instructions.
+
 @item avx2
 Target supports compiling @code{avx2} instructions.
 
diff --git a/gcc/testsuite/g++.target/i386/mv33.C 
b/gcc/testsuite/g++.target/i386/mv33.C
new file mode 100644
index 00000000000..b50f13c5aa8
--- /dev/null
+++ b/gcc/testsuite/g++.target/i386/mv33.C
@@ -0,0 +1,30 @@
+// Test that dispatching can choose the right multiversion
+// for avx10.x-512 microarchitecture levels. 
+
+// { dg-do run }
+// { dg-require-ifunc "" }
+// { dg-options "-O2" }
+
+#include <assert.h>
+
+int __attribute__ ((target("default")))
+foo ()
+{
+  return 0;
+}
+
+int __attribute__ ((target("avx10.1-512"))) foo () {
+  return 1;
+}
+
+int main ()
+{
+  int val = foo ();
+
+  if  (__builtin_cpu_supports ("avx10.1-512"))
+    assert (val == 1);
+  else
+    assert (val == 0);
+
+  return 0;
+}
diff --git a/gcc/testsuite/gcc.target/i386/avx10_1-1.c 
b/gcc/testsuite/gcc.target/i386/avx10_1-1.c
new file mode 100644
index 00000000000..cfd9662bb13
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx10_1-1.c
@@ -0,0 +1,22 @@
+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-O2 -march=x86-64 -mavx10.1" } */
+
+#include <immintrin.h>
+
+void
+f1 ()
+{
+  register __m256d a __asm ("ymm17");
+  register __m256d b __asm ("ymm16");
+  a = _mm256_add_pd (a, b);
+  asm volatile ("" : "+v" (a));
+}
+
+void
+f2 ()
+{
+  register __m128d a __asm ("xmm17");
+  register __m128d b __asm ("xmm16");
+  a = _mm_add_pd (a, b);
+  asm volatile ("" : "+v" (a));
+}
diff --git a/gcc/testsuite/gcc.target/i386/avx10_1-10.c 
b/gcc/testsuite/gcc.target/i386/avx10_1-10.c
new file mode 100644
index 00000000000..9a5892d8df9
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx10_1-10.c
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-options "-march=x86-64" } */
+/* { dg-final { scan-assembler "%zmm" } } */
+
+typedef double __m512d __attribute__ ((__vector_size__ (64), __may_alias__));
+
+__attribute__ ((target ("avx10.1-512"))) __m512d
+foo ()
+{
+  __m512d a, b;
+  a = a + b;
+  return a;
+}
diff --git a/gcc/testsuite/gcc.target/i386/avx10_1-2.c 
b/gcc/testsuite/gcc.target/i386/avx10_1-2.c
new file mode 100644
index 00000000000..0b3991dcf74
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx10_1-2.c
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-options "-march=x86-64 -mavx10.1-512" } */
+/* { dg-final { scan-assembler "%zmm" } } */
+
+typedef double __m512d __attribute__ ((__vector_size__ (64), __may_alias__));
+
+__m512d
+foo ()
+{
+  __m512d a, b;
+  a = a + b;
+  return a;
+}
diff --git a/gcc/testsuite/gcc.target/i386/avx10_1-3.c 
b/gcc/testsuite/gcc.target/i386/avx10_1-3.c
new file mode 100644
index 00000000000..3be988a1a62
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx10_1-3.c
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=x86-64 -mavx10.1" } */
+
+#include <immintrin.h>
+
+int
+foo (int c)
+{
+  register int a __asm ("k7") = c;
+  int b = foo (a);
+  asm volatile ("" : "+k" (b));
+  return b;
+}
diff --git a/gcc/testsuite/gcc.target/i386/avx10_1-4.c 
b/gcc/testsuite/gcc.target/i386/avx10_1-4.c
new file mode 100644
index 00000000000..68cbf197d61
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx10_1-4.c
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=x86-64 -mavx10.1-512" } */
+
+#include <immintrin.h>
+
+long long
+foo (long long c)
+{
+  register long long a __asm ("k7") = c;
+  long long b = foo (a);
+  asm volatile ("" : "+k" (b));
+  return b;
+}
diff --git a/gcc/testsuite/gcc.target/i386/avx10_1-5.c 
b/gcc/testsuite/gcc.target/i386/avx10_1-5.c
new file mode 100644
index 00000000000..5481ab2f386
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx10_1-5.c
@@ -0,0 +1,13 @@
+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-O0 -march=x86-64 -mavx10.1 -Wno-psabi" } */
+/* { dg-final { scan-assembler-not ".%zmm" } } */
+
+typedef double __m512d __attribute__ ((__vector_size__ (64), __may_alias__));
+
+__m512d
+foo ()
+{
+  __m512d a, b;
+  a = a + b;
+  return a;
+}
diff --git a/gcc/testsuite/gcc.target/i386/avx10_1-6.c 
b/gcc/testsuite/gcc.target/i386/avx10_1-6.c
new file mode 100644
index 00000000000..827c80ce51e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx10_1-6.c
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=x86-64 -mavx10.1" } */
+
+#include <immintrin.h>
+
+long long
+foo (long long c)
+{
+  register long long a __asm ("k7") = c;
+  long long b = foo (a);
+  asm volatile ("" : "+k" (b)); /* { dg-error "inconsistent operand 
constraints in an 'asm'" } */
+  return b;
+}
diff --git a/gcc/testsuite/gcc.target/i386/avx10_1-7.c 
b/gcc/testsuite/gcc.target/i386/avx10_1-7.c
new file mode 100644
index 00000000000..d8b8d97590b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx10_1-7.c
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-options "-march=x86-64 -Wno-psabi" } */
+/* { dg-final { scan-assembler-not ".%zmm" } } */
+
+typedef double __m512d __attribute__ ((__vector_size__ (64), __may_alias__));
+
+__attribute__ ((target ("avx10.1"))) __m512d
+foo ()
+{
+  __m512d a, b;
+  a = a + b;
+  return a;
+}
diff --git a/gcc/testsuite/gcc.target/i386/avx10_1-8.c 
b/gcc/testsuite/gcc.target/i386/avx10_1-8.c
new file mode 100644
index 00000000000..8dbd201b336
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx10_1-8.c
@@ -0,0 +1,4 @@
+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-O2 -march=x86-64 -mavx10.1-256" } */
+
+#include "avx10_1-1.c"
diff --git a/gcc/testsuite/gcc.target/i386/avx10_1-9.c 
b/gcc/testsuite/gcc.target/i386/avx10_1-9.c
new file mode 100644
index 00000000000..00493098be7
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx10_1-9.c
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-options "-march=x86-64 -Wno-psabi" } */
+/* { dg-final { scan-assembler-not ".%zmm" } } */
+
+typedef double __m512d __attribute__ ((__vector_size__ (64), __may_alias__));
+
+__attribute__ ((target ("avx10.1-256"))) __m512d
+foo ()
+{
+  __m512d a, b;
+  a = a + b;
+  return a;
+}
-- 
2.31.1

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