From 42a38c8abaa28f67e26b9af3f434fe0107894e7d Mon Sep 17 00:00:00 2001
From: Haochen Jiang <haochen.jiang@intel.com>
Date: Fri, 4 Nov 2022 15:01:05 +0800
Subject: [PATCH 19/28] Support Intel prefetchit0/t1

gcc/ChangeLog:

	* common/config/i386/cpuinfo.h (get_available_features):
	Detect PREFETCHI.
	* common/config/i386/i386-common.cc
	(OPTION_MASK_ISA2_PREFETCHI_SET,
	OPTION_MASK_ISA2_PREFETCHI_UNSET): New.
	(ix86_handle_option): Handle -mprefetchi.
	* common/config/i386/i386-cpuinfo.h
	(enum processor_features): Add FEATURE_PREFETCHI.
	* common/config/i386/i386-isas.h: Add ISA_NAME_TABLE_ENTRY
	for prefetchi.
	* config.gcc: Add prfchiintrin.h.
	* config/i386/cpuid.h (bit_PREFETCHI): New.
	* config/i386/i386-builtin-types.def:
	Add DEF_FUNCTION_TYPE (VOID, PCVOID, INT)
	and DEF_FUNCTION_TYPE (VOID, PCVOID, INT, INT, INT).
	* config/i386/i386-builtin.def (BDESC): Add new builtins.
	* config/i386/i386-c.cc (ix86_target_macros_internal):
	Define __PREFETCHI__.
	* config/i386/i386-expand.cc: Handle new builtins.
	* config/i386/i386-isa.def (PREFETCHI):
	Add DEF_PTA(PREFETCHI).
	* config/i386/i386-options.cc
	(ix86_valid_target_attribute_inner_p): Handle prefetchi.
	* config/i386/i386.md (prefetchi): New define_insn.
	* config/i386/i386.opt: Add option -mprefetchi.
	* config/i386/predicates.md (local_func_symbolic_operand):
	New predicates.
	* config/i386/x86gprintrin.h: Include prfchiintrin.h.
	* config/i386/xmmintrin.h (enum _mm_hint): New enum for
	prefetchi.
	(_mm_prefetch): Handle the highest bit of enum.
	* doc/extend.texi: Document prefetchi.
	* doc/invoke.texi: Document -mprefetchi.
	* doc/sourcebuild.texi: Document target prefetchi.
	* config/i386/prfchiintrin.h: New file.

gcc/testsuite/ChangeLog:

	* g++.dg/other/i386-2.C: Add -mprefetchi.
	* g++.dg/other/i386-3.C: Ditto.
	* gcc.target/i386/avx-1.c: Ditto.
	* gcc.target/i386/funcspec-56.inc: Add new target attribute.
	* gcc.target/i386/sse-13.c: Add -mprefetchi.
	* gcc.target/i386/sse-23.c: Ditto.
	* gcc.target/i386/x86gprintrin-1.c: Ditto.
	* gcc.target/i386/x86gprintrin-2.c: Ditto.
	* gcc.target/i386/x86gprintrin-3.c: Ditto.
	* gcc.target/i386/x86gprintrin-4.c: Ditto.
	* gcc.target/i386/x86gprintrin-5.c: Ditto.
	* gcc.target/i386/prefetchi-1.c: New test.
	* gcc.target/i386/prefetchi-2.c: Ditto.
	* gcc.target/i386/prefetchi-3.c: Ditto.
	* gcc.target/i386/prefetchi-4.c: Ditto.

Co-authored-by: Hongtao Liu <hongtao.liu@intel.com>
---
 gcc/common/config/i386/cpuinfo.h              |  2 +
 gcc/common/config/i386/i386-common.cc         | 15 ++++
 gcc/common/config/i386/i386-cpuinfo.h         |  1 +
 gcc/common/config/i386/i386-isas.h            |  1 +
 gcc/config.gcc                                |  2 +-
 gcc/config/i386/cpuid.h                       |  1 +
 gcc/config/i386/i386-builtin-types.def        |  4 +
 gcc/config/i386/i386-builtin.def              |  4 +
 gcc/config/i386/i386-c.cc                     |  2 +
 gcc/config/i386/i386-expand.cc                | 77 +++++++++++++++++++
 gcc/config/i386/i386-isa.def                  |  1 +
 gcc/config/i386/i386-options.cc               |  4 +-
 gcc/config/i386/i386.md                       | 23 ++++++
 gcc/config/i386/i386.opt                      |  4 +
 gcc/config/i386/predicates.md                 | 15 ++++
 gcc/config/i386/prfchiintrin.h                | 49 ++++++++++++
 gcc/config/i386/x86gprintrin.h                |  2 +
 gcc/config/i386/xmmintrin.h                   |  7 +-
 gcc/doc/extend.texi                           |  5 ++
 gcc/doc/invoke.texi                           |  7 +-
 gcc/doc/sourcebuild.texi                      |  3 +
 gcc/testsuite/g++.dg/other/i386-2.C           |  2 +-
 gcc/testsuite/g++.dg/other/i386-3.C           |  2 +-
 gcc/testsuite/gcc.target/i386/avx-1.c         |  4 +-
 gcc/testsuite/gcc.target/i386/funcspec-56.inc |  2 +
 gcc/testsuite/gcc.target/i386/prefetchi-1.c   | 40 ++++++++++
 gcc/testsuite/gcc.target/i386/prefetchi-2.c   | 26 +++++++
 gcc/testsuite/gcc.target/i386/prefetchi-3.c   | 20 +++++
 gcc/testsuite/gcc.target/i386/prefetchi-4.c   | 19 +++++
 gcc/testsuite/gcc.target/i386/sse-13.c        |  4 +-
 gcc/testsuite/gcc.target/i386/sse-23.c        |  4 +-
 .../gcc.target/i386/x86gprintrin-1.c          |  2 +-
 .../gcc.target/i386/x86gprintrin-2.c          |  2 +-
 .../gcc.target/i386/x86gprintrin-3.c          |  2 +-
 .../gcc.target/i386/x86gprintrin-4.c          |  2 +-
 .../gcc.target/i386/x86gprintrin-5.c          |  2 +-
 36 files changed, 343 insertions(+), 19 deletions(-)
 create mode 100644 gcc/config/i386/prfchiintrin.h
 create mode 100644 gcc/testsuite/gcc.target/i386/prefetchi-1.c
 create mode 100644 gcc/testsuite/gcc.target/i386/prefetchi-2.c
 create mode 100644 gcc/testsuite/gcc.target/i386/prefetchi-3.c
 create mode 100644 gcc/testsuite/gcc.target/i386/prefetchi-4.c

diff --git a/gcc/common/config/i386/cpuinfo.h b/gcc/common/config/i386/cpuinfo.h
index 5951a30aa..f17e88144 100644
--- a/gcc/common/config/i386/cpuinfo.h
+++ b/gcc/common/config/i386/cpuinfo.h
@@ -772,6 +772,8 @@ get_available_features (struct __processor_model *cpu_model,
 	  __cpuid_count (7, 1, eax, ebx, ecx, edx);
 	  if (eax & bit_HRESET)
 	    set_feature (FEATURE_HRESET);
+	  if (edx & bit_PREFETCHI)
+	    set_feature (FEATURE_PREFETCHI);
 	  if (avx_usable)
 	    {
 	      if (eax & bit_AVXVNNI)
diff --git a/gcc/common/config/i386/i386-common.cc b/gcc/common/config/i386/i386-common.cc
index 922db33ee..c8cf532cf 100644
--- a/gcc/common/config/i386/i386-common.cc
+++ b/gcc/common/config/i386/i386-common.cc
@@ -108,6 +108,7 @@ along with GCC; see the file COPYING3.  If not see
 #define OPTION_MASK_ISA2_AMX_INT8_SET OPTION_MASK_ISA2_AMX_INT8
 #define OPTION_MASK_ISA2_AMX_BF16_SET OPTION_MASK_ISA2_AMX_BF16
 #define OPTION_MASK_ISA2_AMX_FP16_SET OPTION_MASK_ISA2_AMX_FP16
+#define OPTION_MASK_ISA2_PREFETCHI_SET OPTION_MASK_ISA2_PREFETCHI
 
 /* SSE4 includes both SSE4.1 and SSE4.2. -msse4 should be the same
    as -msse4.2.  */
@@ -277,6 +278,7 @@ along with GCC; see the file COPYING3.  If not see
   (OPTION_MASK_ISA2_KL | OPTION_MASK_ISA2_WIDEKL_UNSET)
 #define OPTION_MASK_ISA2_WIDEKL_UNSET OPTION_MASK_ISA2_WIDEKL
 #define OPTION_MASK_ISA2_AMX_FP16_UNSET OPTION_MASK_ISA2_AMX_FP16
+#define OPTION_MASK_ISA2_PREFETCHI_UNSET OPTION_MASK_ISA2_PREFETCHI
 
 /* SSE4 includes both SSE4.1 and SSE4.2.  -mno-sse4 should the same
    as -mno-sse4.1. */
@@ -1140,6 +1142,19 @@ ix86_handle_option (struct gcc_options *opts,
 	}
       return true;
 
+    case OPT_mprefetchi:
+      if (value)
+	{
+	  opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_PREFETCHI_SET;
+	  opts->x_ix86_isa_flags2_explicit |= OPTION_MASK_ISA2_PREFETCHI_SET;
+	}
+      else
+	{
+	  opts->x_ix86_isa_flags2 &= ~OPTION_MASK_ISA2_PREFETCHI_UNSET;
+	  opts->x_ix86_isa_flags2_explicit |= OPTION_MASK_ISA2_PREFETCHI_UNSET;
+	}
+      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 8f22897de..95b078acf 100644
--- a/gcc/common/config/i386/i386-cpuinfo.h
+++ b/gcc/common/config/i386/i386-cpuinfo.h
@@ -241,6 +241,7 @@ enum processor_features
   FEATURE_X86_64_V3,
   FEATURE_X86_64_V4,
   FEATURE_AMX_FP16,
+  FEATURE_PREFETCHI,
   CPU_FEATURE_MAX
 };
 
diff --git a/gcc/common/config/i386/i386-isas.h b/gcc/common/config/i386/i386-isas.h
index 95bab6da2..6caf06249 100644
--- a/gcc/common/config/i386/i386-isas.h
+++ b/gcc/common/config/i386/i386-isas.h
@@ -176,4 +176,5 @@ ISA_NAMES_TABLE_START
   ISA_NAMES_TABLE_ENTRY("x86-64-v3", FEATURE_X86_64_V3, P_X86_64_V3, NULL)
   ISA_NAMES_TABLE_ENTRY("x86-64-v4", FEATURE_X86_64_V4, P_X86_64_V4, NULL)
   ISA_NAMES_TABLE_ENTRY("amx-fp16", FEATURE_AMX_FP16, P_NONE, "-mamx-fp16")
+  ISA_NAMES_TABLE_ENTRY("prefetchi", FEATURE_PREFETCHI, P_NONE, "-mprefetchi")
 ISA_NAMES_TABLE_END
diff --git a/gcc/config.gcc b/gcc/config.gcc
index e2b4a23dc..81012c651 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -424,7 +424,7 @@ i[34567]86-*-* | x86_64-*-*)
 		       amxbf16intrin.h x86gprintrin.h uintrintrin.h
 		       hresetintrin.h keylockerintrin.h avxvnniintrin.h
 		       mwaitintrin.h avx512fp16intrin.h avx512fp16vlintrin.h
-		       amxfp16intrin.h"
+		       amxfp16intrin.h prfchiintrin.h"
 	;;
 ia64-*-*)
 	extra_headers=ia64intrin.h
diff --git a/gcc/config/i386/cpuid.h b/gcc/config/i386/cpuid.h
index d6cd8d1bf..21100149a 100644
--- a/gcc/config/i386/cpuid.h
+++ b/gcc/config/i386/cpuid.h
@@ -50,6 +50,7 @@
 
 /* %edx */
 #define bit_CMPXCHG8B	(1 << 8)
+#define bit_PREFETCHI	(1 << 14)
 #define bit_CMOV	(1 << 15)
 #define bit_MMX		(1 << 23)
 #define bit_FXSAVE	(1 << 24)
diff --git a/gcc/config/i386/i386-builtin-types.def b/gcc/config/i386/i386-builtin-types.def
index e33f06ab3..ff3b0af84 100644
--- a/gcc/config/i386/i386-builtin-types.def
+++ b/gcc/config/i386/i386-builtin-types.def
@@ -1387,3 +1387,7 @@ DEF_FUNCTION_TYPE (V32HF, V32HF)
 DEF_FUNCTION_TYPE_ALIAS (V8HF_FTYPE_V8HF, ROUND)
 DEF_FUNCTION_TYPE_ALIAS (V16HF_FTYPE_V16HF, ROUND)
 DEF_FUNCTION_TYPE_ALIAS (V32HF_FTYPE_V32HF, ROUND)
+
+# PREFETCHI builtins
+DEF_FUNCTION_TYPE (VOID, PCVOID, INT)
+DEF_FUNCTION_TYPE (VOID, PCVOID, INT, INT, INT)
diff --git a/gcc/config/i386/i386-builtin.def b/gcc/config/i386/i386-builtin.def
index 2b1d6c733..d3ab21eea 100644
--- a/gcc/config/i386/i386-builtin.def
+++ b/gcc/config/i386/i386-builtin.def
@@ -469,6 +469,10 @@ BDESC (0, OPTION_MASK_ISA2_WIDEKL, CODE_FOR_nothing, "__builtin_ia32_aesdecwide2
 BDESC (0, OPTION_MASK_ISA2_WIDEKL, CODE_FOR_nothing, "__builtin_ia32_aesencwide128kl_u8", IX86_BUILTIN_AESENCWIDE128KLU8, UNKNOWN, (int) UINT8_FTYPE_PV2DI_PCV2DI_PCVOID)
 BDESC (0, OPTION_MASK_ISA2_WIDEKL, CODE_FOR_nothing, "__builtin_ia32_aesencwide256kl_u8", IX86_BUILTIN_AESENCWIDE256KLU8, UNKNOWN, (int) UINT8_FTYPE_PV2DI_PCV2DI_PCVOID)
 
+/* PREFETCHI */
+BDESC (0, 0, CODE_FOR_prefetchi, "__builtin_ia32_prefetchi", IX86_BUILTIN_PREFETCHI, UNKNOWN, (int) VOID_FTYPE_PCVOID_INT)
+BDESC (0, 0, CODE_FOR_nothing, "__builtin_ia32_prefetch", IX86_BUILTIN_PREFETCH, UNKNOWN, (int) VOID_FTYPE_PCVOID_INT_INT_INT)
+
 BDESC_END (SPECIAL_ARGS, PURE_ARGS)
 
 /* AVX */
diff --git a/gcc/config/i386/i386-c.cc b/gcc/config/i386/i386-c.cc
index 4269f29e6..00880bd17 100644
--- a/gcc/config/i386/i386-c.cc
+++ b/gcc/config/i386/i386-c.cc
@@ -635,6 +635,8 @@ ix86_target_macros_internal (HOST_WIDE_INT isa_flag,
     def_or_undef (parse_in, "__AVXVNNI__");
   if (isa_flag2 & OPTION_MASK_ISA2_AMX_FP16)
     def_or_undef (parse_in, "__AMX_FP16__");
+  if (isa_flag2 & OPTION_MASK_ISA2_PREFETCHI)
+    def_or_undef (parse_in, "__PREFETCHI__");
   if (TARGET_IAMCU)
     {
       def_or_undef (parse_in, "__iamcu");
diff --git a/gcc/config/i386/i386-expand.cc b/gcc/config/i386/i386-expand.cc
index 77dda5dd4..bc2e61980 100644
--- a/gcc/config/i386/i386-expand.cc
+++ b/gcc/config/i386/i386-expand.cc
@@ -12850,6 +12850,83 @@ ix86_expand_builtin (tree exp, rtx target, rtx subtarget,
 	return target;
       }
 
+    case IX86_BUILTIN_PREFETCH:
+      {
+	arg0 = CALL_EXPR_ARG (exp, 0); // const void *
+	arg1 = CALL_EXPR_ARG (exp, 1); // const int
+	arg2 = CALL_EXPR_ARG (exp, 2); // const int
+	arg3 = CALL_EXPR_ARG (exp, 3); // const int
+
+	op0 = expand_normal (arg0);
+	op1 = expand_normal (arg1);
+	op2 = expand_normal (arg2);
+	op3 = expand_normal (arg3);
+
+	if (!CONST_INT_P (op1) || !CONST_INT_P (op2) || !CONST_INT_P (op3))
+	  {
+	    error ("second, third and fourth argument must be a const");
+	    return const0_rtx;
+	  }
+
+	if (INTVAL (op3) == 1)
+	  {
+	    if (TARGET_64BIT
+		&& local_func_symbolic_operand (op0, GET_MODE (op0)))
+	      emit_insn (gen_prefetchi (op0, op2));
+	    else
+	      {
+		warning (0, "instruction prefetch applies when in 64-bit mode"
+			    " with RIP-relative addressing and"
+			    " option %<-mprefetchi%>;"
+			    " they stay NOPs otherwise");
+		emit_insn (gen_nop ());
+	      }
+	  }
+	else
+	  {
+	    if (!address_operand (op0, VOIDmode))
+	      {
+		op0 = convert_memory_address (Pmode, op0);
+		op0 = copy_addr_to_reg (op0);
+	      }
+	    emit_insn (gen_prefetch (op0, op1, op2));
+	  }
+
+	return 0;
+      }
+
+    case IX86_BUILTIN_PREFETCHI:
+      {
+	arg0 = CALL_EXPR_ARG (exp, 0); // const void *
+	arg1 = CALL_EXPR_ARG (exp, 1); // const int
+
+	op0 = expand_normal (arg0);
+	op1 = expand_normal (arg1);
+
+	if (!CONST_INT_P (op1))
+	  {
+	    error ("second argument must be a const");
+	    return const0_rtx;
+	  }
+
+	/* GOT/PLT_PIC should not be available for instruction prefetch.
+	   It must be real instruction address.  */
+	if (TARGET_64BIT
+	    && local_func_symbolic_operand (op0, GET_MODE (op0)))
+	  emit_insn (gen_prefetchi (op0, op1));
+	else
+	  {
+	    /* Ignore the hint.  */
+	    warning (0, "instruction prefetch applies when in 64-bit mode"
+			" with RIP-relative addressing and"
+			" option %<-mprefetchi%>;"
+			" they stay NOPs otherwise");
+	    emit_insn (gen_nop ());
+	  }
+
+	return 0;
+      }
+
     case IX86_BUILTIN_VEC_INIT_V2SI:
     case IX86_BUILTIN_VEC_INIT_V4HI:
     case IX86_BUILTIN_VEC_INIT_V8QI:
diff --git a/gcc/config/i386/i386-isa.def b/gcc/config/i386/i386-isa.def
index c7305c01b..744a7df85 100644
--- a/gcc/config/i386/i386-isa.def
+++ b/gcc/config/i386/i386-isa.def
@@ -110,3 +110,4 @@ DEF_PTA(WIDEKL)
 DEF_PTA(AVXVNNI)
 DEF_PTA(AVX512FP16)
 DEF_PTA(AMX_FP16)
+DEF_PTA(PREFETCHI)
diff --git a/gcc/config/i386/i386-options.cc b/gcc/config/i386/i386-options.cc
index 3edb7094e..724375f02 100644
--- a/gcc/config/i386/i386-options.cc
+++ b/gcc/config/i386/i386-options.cc
@@ -231,7 +231,8 @@ static struct ix86_target_opts isa2_opts[] =
   { "-mwidekl", 	OPTION_MASK_ISA2_WIDEKL },
   { "-mavxvnni",	OPTION_MASK_ISA2_AVXVNNI },
   { "-mavx512fp16",	OPTION_MASK_ISA2_AVX512FP16 },
-  { "-mamx-fp16",       OPTION_MASK_ISA2_AMX_FP16 }
+  { "-mamx-fp16",       OPTION_MASK_ISA2_AMX_FP16 },
+  { "-mprefetchi",      OPTION_MASK_ISA2_PREFETCHI }
 };
 static struct ix86_target_opts isa_opts[] =
 {
@@ -1076,6 +1077,7 @@ ix86_valid_target_attribute_inner_p (tree fndecl, tree args, char *p_strings[],
     IX86_ATTR_ISA ("avxvnni",   OPT_mavxvnni),
     IX86_ATTR_ISA ("avx512fp16", OPT_mavx512fp16),
     IX86_ATTR_ISA ("amx-fp16", OPT_mamx_fp16),
+    IX86_ATTR_ISA ("prefetchi",   OPT_mprefetchi),
 
     /* enum options */
     IX86_ATTR_ENUM ("fpmath=",	OPT_mfpmath_),
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 71691f598..f08c2cfb1 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -329,6 +329,9 @@
 
   ;; For HRESET support
   UNSPECV_HRESET
+
+  ;; For PREFETCHI support
+  UNSPECV_PREFETCHI
 ])
 
 ;; Constants to represent rounding modes in the ROUND instruction
@@ -22907,6 +22910,26 @@
 	(symbol_ref "memory_address_length (operands[0], false)"))
    (set_attr "memory" "none")])
 
+(define_insn "prefetchi"
+  [(unspec_volatile [(match_operand 0 "local_func_symbolic_operand" "p")
+		     (match_operand:SI 1 "const_int_operand")]
+		    UNSPECV_PREFETCHI)]
+  "TARGET_PREFETCHI && TARGET_64BIT"
+{
+  static const char * const patterns[2] = {
+    "prefetchit1\t%0", "prefetchit0\t%0"
+  };
+
+  int locality = INTVAL (operands[1]);
+  gcc_assert (IN_RANGE (locality, 2, 3));
+
+  return patterns[locality - 2];
+}
+  [(set_attr "type" "sse")
+   (set (attr "length_address")
+	(symbol_ref "memory_address_length (operands[0], false)"))
+   (set_attr "memory" "none")])
+
 (define_expand "stack_protect_set"
   [(match_operand 0 "memory_operand")
    (match_operand 1 "memory_operand")]
diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt
index 52c6f02ee..50cd114f6 100644
--- a/gcc/config/i386/i386.opt
+++ b/gcc/config/i386/i386.opt
@@ -1230,3 +1230,7 @@ Enable vectorization for scatter instruction.
 mamx-fp16
 Target Mask(ISA2_AMX_FP16) Var(ix86_isa_flags2) Save
 Support AMX-FP16 built-in functions and code generation.
+
+mprefetchi
+Target Mask(ISA2_PREFETCHI) Var(ix86_isa_flags2) Save
+Support PREFETCHI built-in functions and code generation.
diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md
index ac02c61ac..774178b78 100644
--- a/gcc/config/i386/predicates.md
+++ b/gcc/config/i386/predicates.md
@@ -610,6 +610,21 @@
   return false;
 })
 
+(define_predicate "local_func_symbolic_operand"
+  (match_operand 0 "local_symbolic_operand")
+{
+  if (GET_CODE (op) == CONST
+      && GET_CODE (XEXP (op, 0)) == PLUS
+      && CONST_INT_P (XEXP (XEXP (op, 0), 1)))
+    op = XEXP (XEXP (op, 0), 0);
+
+  if (GET_CODE (op) == SYMBOL_REF
+      && !SYMBOL_REF_FUNCTION_P (op))
+    return false;
+
+  return true;
+})
+
 ;; Test for a legitimate @GOTOFF operand.
 ;;
 ;; VxWorks does not impose a fixed gap between segments; the run-time
diff --git a/gcc/config/i386/prfchiintrin.h b/gcc/config/i386/prfchiintrin.h
new file mode 100644
index 000000000..06deef488
--- /dev/null
+++ b/gcc/config/i386/prfchiintrin.h
@@ -0,0 +1,49 @@
+/* Copyright (C) 2022 Free Software Foundation, Inc.
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   GCC is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#if !defined _X86GPRINTRIN_H_INCLUDED
+# error "Never use <prfchiintrin.h> directly; include <x86gprintrin.h> instead."
+#endif
+
+#ifndef _PRFCHIINTRIN_H_INCLUDED
+#define _PRFCHIINTRIN_H_INCLUDED
+
+#ifdef __x86_64__
+
+extern __inline void
+__attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_m_prefetchit0 (void* __P)
+{
+  __builtin_ia32_prefetchi (__P, 3);
+}
+
+extern __inline void
+__attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_m_prefetchit1 (void* __P)
+{
+  __builtin_ia32_prefetchi (__P, 2);
+}
+
+#endif
+
+#endif /* _PRFCHIINTRIN_H_INCLUDED */
diff --git a/gcc/config/i386/x86gprintrin.h b/gcc/config/i386/x86gprintrin.h
index e0be01d5e..0768aa0d7 100644
--- a/gcc/config/i386/x86gprintrin.h
+++ b/gcc/config/i386/x86gprintrin.h
@@ -72,6 +72,8 @@
 
 #include <pkuintrin.h>
 
+#include <prfchiintrin.h>
+
 #include <rdseedintrin.h>
 
 #include <rtmintrin.h>
diff --git a/gcc/config/i386/xmmintrin.h b/gcc/config/i386/xmmintrin.h
index f1c704a2d..7fb179430 100644
--- a/gcc/config/i386/xmmintrin.h
+++ b/gcc/config/i386/xmmintrin.h
@@ -36,6 +36,8 @@
 /* Constants for use with _mm_prefetch.  */
 enum _mm_hint
 {
+  _MM_HINT_IT0 = 19,
+  _MM_HINT_IT1 = 18,
   /* _MM_HINT_ET is _MM_HINT_T with set 3rd bit.  */
   _MM_HINT_ET0 = 7,
   _MM_HINT_ET1 = 6,
@@ -51,11 +53,12 @@ enum _mm_hint
 extern __inline void __attribute__((__gnu_inline__, __always_inline__, __artificial__))
 _mm_prefetch (const void *__P, enum _mm_hint __I)
 {
-  __builtin_prefetch (__P, (__I & 0x4) >> 2, __I & 0x3);
+  __builtin_ia32_prefetch (__P, (__I & 0x4) >> 2,
+			   __I & 0x3, (__I & 0x10) >> 4);
 }
 #else
 #define _mm_prefetch(P, I) \
-  __builtin_prefetch ((P), ((I & 0x4) >> 2), (I & 0x3))
+  __builtin_ia32_prefetch ((P), ((I) & 0x4) >> 2, ((I) & 0x3), ((I) & 0x10) >> 4)
 #endif
 
 #ifndef __SSE__
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 4ba9d34cd..cb987f469 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -7043,6 +7043,11 @@ Enable/disable the generation of the AVXVNNI instructions.
 @cindex @code{target("amx-fp16")} function attribute, x86
 Enable/disable the generation of the AMX-FP16 instructions.
 
+@item prefetchi
+@itemx no-prefetchi
+@cindex @code{target("prefetchi")} function attribute, x86
+Enable/disable the generation of the PREFETCHI instructions.
+
 @item cld
 @itemx no-cld
 @cindex @code{target("cld")} function attribute, x86
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index d25f13217..211b970c0 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -1428,7 +1428,7 @@ See RS/6000 and PowerPC Options.
 -mavx5124fmaps  -mavx512vnni  -mavx5124vnniw  -mprfchw  -mrdpid @gol
 -mrdseed  -msgx -mavx512vp2intersect -mserialize -mtsxldtrk@gol
 -mamx-tile  -mamx-int8  -mamx-bf16 -muintr -mhreset -mavxvnni@gol
--mavx512fp16 -mamx-fp16 @gol
+-mavx512fp16 -mamx-fp16 -mprefetchi @gol
 -mcldemote  -mms-bitfields  -mno-align-stringops  -minline-all-stringops @gol
 -minline-stringops-dynamically  -mstringop-strategy=@var{alg} @gol
 -mkl -mwidekl @gol
@@ -32445,6 +32445,9 @@ preferred alignment to @option{-mpreferred-stack-boundary=2}.
 @need 200
 @itemx -mamx-fp16
 @opindex mamx-fp16
+@need 200
+@itemx -mprefetchi
+@opindex mprefetchi
 These switches enable the use of instructions in the MMX, SSE,
 SSE2, SSE3, SSSE3, SSE4, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX512F, AVX512PF,
 AVX512ER, AVX512CD, AVX512VL, AVX512BW, AVX512DQ, AVX512IFMA, AVX512VBMI, SHA,
@@ -32455,7 +32458,7 @@ XSAVEOPT, XSAVEC, XSAVES, RTM, HLE, TBM, MWAITX, CLZERO, PKU, AVX512VBMI2,
 GFNI, VAES, WAITPKG, VPCLMULQDQ, AVX512BITALG, MOVDIRI, MOVDIR64B, AVX512BF16,
 ENQCMD, AVX512VPOPCNTDQ, AVX5124FMAPS, AVX512VNNI, AVX5124VNNIW, SERIALIZE,
 UINTR, HRESET, AMXTILE, AMXINT8, AMXBF16, KL, WIDEKL, AVXVNNI, AVX512-FP16,
-AMX-FP16 or CLDEMOTE extended instruction sets. Each has a corresponding
+AMX-FP16, PREFETCHI 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
diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index b64b62dee..c68e492dc 100644
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -2496,6 +2496,9 @@ Target does not require strict alignment.
 @item pie_copyreloc
 The x86-64 target linker supports PIE with copy reloc.
 
+@item prefetchi
+Target supports the execution of @code{prefetchi} instructions.
+
 @item rdrand
 Target supports x86 @code{rdrand} instruction.
 
diff --git a/gcc/testsuite/g++.dg/other/i386-2.C b/gcc/testsuite/g++.dg/other/i386-2.C
index 57a6357aa..72ed5fed0 100644
--- a/gcc/testsuite/g++.dg/other/i386-2.C
+++ b/gcc/testsuite/g++.dg/other/i386-2.C
@@ -1,5 +1,5 @@
 /* { dg-do compile { target i?86-*-* x86_64-*-* } } */
-/* { dg-options "-O -pedantic-errors -march=k8 -msse4a -m3dnow -mavx -mavx2 -mfma4 -mxop -maes -mpclmul -mpopcnt -mabm -mlzcnt -mbmi -mbmi2 -mtbm -mlwp -mfsgsbase -mrdrnd -mf16c -mfma -mrtm -mrdseed -mprfchw -madx -mfxsr -mxsaveopt -mavx512f -mavx512er -mavx512cd -mavx512pf -msha -mprefetchwt1 -mxsavec -mxsaves -mclflushopt  -mavx512dq -mavx512bw -mavx512vl -mavx512ifma -mavx512vbmi -mavx512vbmi2 -mavx5124fmaps -mavx5124vnniw -mavx512vpopcntdq -mclwb -mmwaitx -mclzero -mpku -msgx -mrdpid -mgfni -mavx512bitalg -mpconfig -mwbnoinvd -mavx512bf16 -menqcmd -mavx512vp2intersect -mserialize -mtsxldtrk -mamx-tile -mamx-int8 -mamx-bf16 -mkl -mwidekl -mavxvnni -mavx512fp16 -mamx-fp16" } */
+/* { dg-options "-O -pedantic-errors -march=k8 -msse4a -m3dnow -mavx -mavx2 -mfma4 -mxop -maes -mpclmul -mpopcnt -mabm -mlzcnt -mbmi -mbmi2 -mtbm -mlwp -mfsgsbase -mrdrnd -mf16c -mfma -mrtm -mrdseed -mprfchw -madx -mfxsr -mxsaveopt -mavx512f -mavx512er -mavx512cd -mavx512pf -msha -mprefetchwt1 -mxsavec -mxsaves -mclflushopt  -mavx512dq -mavx512bw -mavx512vl -mavx512ifma -mavx512vbmi -mavx512vbmi2 -mavx5124fmaps -mavx5124vnniw -mavx512vpopcntdq -mclwb -mmwaitx -mclzero -mpku -msgx -mrdpid -mgfni -mavx512bitalg -mpconfig -mwbnoinvd -mavx512bf16 -menqcmd -mavx512vp2intersect -mserialize -mtsxldtrk -mamx-tile -mamx-int8 -mamx-bf16 -mkl -mwidekl -mavxvnni -mavx512fp16 -mamx-fp16 -mprefetchi" } */
 
 /* Test that {,x,e,p,t,s,w,a,b,i}mmintrin.h, mm3dnow.h, fma4intrin.h,
    xopintrin.h, abmintrin.h, bmiintrin.h, tbmintrin.h, lwpintrin.h,
diff --git a/gcc/testsuite/g++.dg/other/i386-3.C b/gcc/testsuite/g++.dg/other/i386-3.C
index 1947547d6..9dd53653f 100644
--- a/gcc/testsuite/g++.dg/other/i386-3.C
+++ b/gcc/testsuite/g++.dg/other/i386-3.C
@@ -1,5 +1,5 @@
 /* { dg-do compile { target i?86-*-* x86_64-*-* } } */
-/* { dg-options "-O -fkeep-inline-functions -march=k8 -msse4a -m3dnow -mavx -mavx2 -mfma4 -mxop -maes -mpclmul -mpopcnt -mabm -mlzcnt -mbmi -mbmi2 -mtbm -mlwp -mfsgsbase -mrdrnd -mf16c -mfma -mrtm -mrdseed -mprfchw -madx -mfxsr -mxsaveopt -mavx512f -mavx512er -mavx512cd -mavx512pf -msha -mprefetchwt1 -mxsavec -mxsaves -mclflushopt -mavx512dq -mavx512bw -mavx512vl -mavx512ifma -mavx512vbmi -mavx512vbmi2 -mavx5124fmaps -mavx5124vnniw -mavx512vpopcntdq -mclwb -mmwaitx -mclzero -mpku -msgx -mrdpid -mgfni -mavx512bitalg -mpconfig -mwbnoinvd -mavx512bf16 -menqcmd -mavx512vp2intersect -mserialize -mtsxldtrk -mamx-tile -mamx-int8 -mamx-bf16 -mkl -mwidekl -mavxvnni -mavx512fp16 -mamx-fp16" } */
+/* { dg-options "-O -fkeep-inline-functions -march=k8 -msse4a -m3dnow -mavx -mavx2 -mfma4 -mxop -maes -mpclmul -mpopcnt -mabm -mlzcnt -mbmi -mbmi2 -mtbm -mlwp -mfsgsbase -mrdrnd -mf16c -mfma -mrtm -mrdseed -mprfchw -madx -mfxsr -mxsaveopt -mavx512f -mavx512er -mavx512cd -mavx512pf -msha -mprefetchwt1 -mxsavec -mxsaves -mclflushopt -mavx512dq -mavx512bw -mavx512vl -mavx512ifma -mavx512vbmi -mavx512vbmi2 -mavx5124fmaps -mavx5124vnniw -mavx512vpopcntdq -mclwb -mmwaitx -mclzero -mpku -msgx -mrdpid -mgfni -mavx512bitalg -mpconfig -mwbnoinvd -mavx512bf16 -menqcmd -mavx512vp2intersect -mserialize -mtsxldtrk -mamx-tile -mamx-int8 -mamx-bf16 -mkl -mwidekl -mavxvnni -mavx512fp16 -mamx-fp16 -mprefetchi" } */
 
 /* Test that {,x,e,p,t,s,w,a,b,i}mmintrin.h, mm3dnow.h, fma4intrin.h,
    xopintrin.h, abmintrin.h, bmiintrin.h, tbmintrin.h, lwpintrin.h,
diff --git a/gcc/testsuite/gcc.target/i386/avx-1.c b/gcc/testsuite/gcc.target/i386/avx-1.c
index 154e7b3b1..2b46e1b87 100644
--- a/gcc/testsuite/gcc.target/i386/avx-1.c
+++ b/gcc/testsuite/gcc.target/i386/avx-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -Werror-implicit-function-declaration -march=k8 -m3dnow -mavx -mavx2 -maes -mpclmul -mgfni -mavx512bw -mavx512fp16 -mavx512vl" } */
+/* { dg-options "-O2 -Werror-implicit-function-declaration -march=k8 -m3dnow -mavx -mavx2 -maes -mpclmul -mgfni -mavx512bw -mavx512fp16 -mavx512vl -mprefetchi" } */
 /* { dg-add-options bind_pic_locally } */
 
 #include <mm_malloc.h>
@@ -153,7 +153,7 @@
 #define __builtin_ia32_shufpd(A, B, N) __builtin_ia32_shufpd(A, B, 0)
 
 /* xmmintrin.h */
-#define __builtin_prefetch(P, A, I) __builtin_prefetch(P, 0, _MM_HINT_NTA)
+#define __builtin_ia32_prefetch(A, B, C, D) __builtin_ia32_prefetch(A, 0, 3, 0)
 #define __builtin_ia32_pshufw(A, N) __builtin_ia32_pshufw(A, 0)
 #define __builtin_ia32_vec_set_v4hi(A, D, N) \
   __builtin_ia32_vec_set_v4hi(A, D, 0)
diff --git a/gcc/testsuite/gcc.target/i386/funcspec-56.inc b/gcc/testsuite/gcc.target/i386/funcspec-56.inc
index b00cfff03..9f073f78c 100644
--- a/gcc/testsuite/gcc.target/i386/funcspec-56.inc
+++ b/gcc/testsuite/gcc.target/i386/funcspec-56.inc
@@ -81,6 +81,7 @@ extern void test_widekl (void)			__attribute__((__target__("widekl")));
 extern void test_avxvnni (void)			__attribute__((__target__("avxvnni")));
 extern void test_avx512fp16 (void)		__attribute__((__target__("avx512fp16")));
 extern void test_amx_fp16 (void)		__attribute__((__target__("amx-fp16")));
+extern void test_prefetchi (void)               __attribute__((__target__("prefetchi")));
 
 extern void test_no_sgx (void)			__attribute__((__target__("no-sgx")));
 extern void test_no_avx5124fmaps(void)		__attribute__((__target__("no-avx5124fmaps")));
@@ -163,6 +164,7 @@ extern void test_no_widekl (void)		__attribute__((__target__("no-widekl")));
 extern void test_no_avxvnni (void)		__attribute__((__target__("no-avxvnni")));
 extern void test_no_avx512fp16 (void)		__attribute__((__target__("no-avx512fp16")));
 extern void test_no_amx_fp16 (void)		__attribute__((__target__("no-amx-fp16")));
+extern void test_no_prefetchi (void)            __attribute__((__target__("no-prefetchi")));
 
 extern void test_arch_nocona (void)		__attribute__((__target__("arch=nocona")));
 extern void test_arch_core2 (void)		__attribute__((__target__("arch=core2")));
diff --git a/gcc/testsuite/gcc.target/i386/prefetchi-1.c b/gcc/testsuite/gcc.target/i386/prefetchi-1.c
new file mode 100644
index 000000000..80f25e70e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/prefetchi-1.c
@@ -0,0 +1,40 @@
+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-mprefetchi -O2" } */
+/* { dg-final { scan-assembler-times "\[ \\t\]+prefetchit0\[ \\t\]+" 2 } } */
+/* { dg-final { scan-assembler-times "\[ \\t\]+prefetchit1\[ \\t\]+" 2 } } */
+
+#include <x86intrin.h>
+
+int
+bar (int a)
+{
+  return a + 1;
+}
+
+int
+foo1 (int b)
+{
+  _mm_prefetch (bar, _MM_HINT_IT0);
+  return bar (b) + 1;
+}
+
+int
+foo2 (int b)
+{
+  _mm_prefetch (bar, _MM_HINT_IT1);
+  return bar (b) + 1;
+}
+
+int
+foo3 (int b)
+{
+  _m_prefetchit0 (bar);
+  return bar (b) + 1;
+}
+
+int
+foo4 (int b)
+{
+  _m_prefetchit1 (bar);
+  return bar (b) + 1;
+}
diff --git a/gcc/testsuite/gcc.target/i386/prefetchi-2.c b/gcc/testsuite/gcc.target/i386/prefetchi-2.c
new file mode 100644
index 000000000..e05ce9c73
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/prefetchi-2.c
@@ -0,0 +1,26 @@
+/* { dg-do compile { target { ia32 } } } */
+/* { dg-options "-mprefetchi -O2" } */
+/* { dg-final { scan-assembler-not "\[ \\t\]+prefetchit0" } } */
+/* { dg-final { scan-assembler-not "\[ \\t\]+prefetchit1" } } */
+
+#include <x86intrin.h>
+
+int
+bar (int a)
+{
+  return a + 1;
+}
+
+int
+foo1 (int b)
+{
+  __builtin_ia32_prefetch (bar, 0, 3, 1); /* { dg-warning "instruction prefetch applies when in 64-bit mode with RIP-relative addressing and option '-mprefetchi'; they stay NOPs otherwise" } */
+  return bar (b) + 1;
+}
+
+int
+foo2 (int b)
+{
+  __builtin_ia32_prefetchi (bar, 2); /* { dg-warning "instruction prefetch applies when in 64-bit mode with RIP-relative addressing and option '-mprefetchi'; they stay NOPs otherwise" } */
+  return bar (b) + 1;
+}
diff --git a/gcc/testsuite/gcc.target/i386/prefetchi-3.c b/gcc/testsuite/gcc.target/i386/prefetchi-3.c
new file mode 100644
index 000000000..f0a4173d2
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/prefetchi-3.c
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-mprefetchi -O2" } */
+/* { dg-final { scan-assembler-not "prefetchit0" } } */
+/* { dg-final { scan-assembler-not "prefetchit1" } } */
+
+#include <x86intrin.h>
+
+void* p;
+
+void extern
+prefetchi_test1 (void)
+{
+  __builtin_ia32_prefetchi (p, 2); /* { dg-warning "instruction prefetch applies when in 64-bit mode with RIP-relative addressing and option '-mprefetchi'; they stay NOPs otherwise" } */
+}
+
+void extern
+prefetchi_test2 (void)
+{
+  __builtin_ia32_prefetch (p, 0, 3, 1); /* { dg-warning "instruction prefetch applies when in 64-bit mode with RIP-relative addressing and option '-mprefetchi'; they stay NOPs otherwise" } */
+} 
diff --git a/gcc/testsuite/gcc.target/i386/prefetchi-4.c b/gcc/testsuite/gcc.target/i386/prefetchi-4.c
new file mode 100644
index 000000000..73ae596d1
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/prefetchi-4.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-O0" } */
+
+#include <x86intrin.h>
+
+void* p;
+
+void extern
+prefetch_test (void)
+{
+  __builtin_ia32_prefetch (p, 0, 3, 0);
+  __builtin_ia32_prefetch (p, 0, 2, 0);
+  __builtin_ia32_prefetch (p, 0, 1, 0);
+  __builtin_ia32_prefetch (p, 0, 0, 0);
+  __builtin_ia32_prefetch (p, 1, 3, 0);
+  __builtin_ia32_prefetch (p, 1, 2, 0);
+  __builtin_ia32_prefetch (p, 1, 1, 0);
+  __builtin_ia32_prefetch (p, 1, 0, 0);
+}
diff --git a/gcc/testsuite/gcc.target/i386/sse-13.c b/gcc/testsuite/gcc.target/i386/sse-13.c
index a1e453a98..db7c0fc7a 100644
--- a/gcc/testsuite/gcc.target/i386/sse-13.c
+++ b/gcc/testsuite/gcc.target/i386/sse-13.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -Werror-implicit-function-declaration -march=k8 -msse4a -m3dnow -mavx -mavx2 -mfma4 -mxop -maes -mpclmul -mpopcnt -mabm -mlzcnt -mbmi -mbmi2 -mtbm -mlwp -mfsgsbase -mrdrnd -mf16c -mfma -mrtm -mrdseed -mprfchw -madx -mfxsr -mxsaveopt -mavx512f -mavx512er -mavx512cd -mavx512pf -msha -mprefetchwt1 -mxsavec -mxsaves -mclflushopt -mavx512vl -mavx512dq -mavx512bw -mavx512vbmi -mavx512vbmi2 -mavx512ifma -mavx5124fmaps -mavx5124vnniw -mavx512vpopcntdq -mavx512vp2intersect -mclwb -mmwaitx -mclzero -mpku -msgx -mrdpid -mgfni -mavx512bitalg -mpconfig -mwbnoinvd -mavx512bf16 -menqcmd -mserialize -mtsxldtrk -mamx-tile -mamx-int8 -mamx-bf16 -mkl -mwidekl -mavxvnni -mavx512fp16 -mamx-fp16" } */
+/* { dg-options "-O2 -Werror-implicit-function-declaration -march=k8 -msse4a -m3dnow -mavx -mavx2 -mfma4 -mxop -maes -mpclmul -mpopcnt -mabm -mlzcnt -mbmi -mbmi2 -mtbm -mlwp -mfsgsbase -mrdrnd -mf16c -mfma -mrtm -mrdseed -mprfchw -madx -mfxsr -mxsaveopt -mavx512f -mavx512er -mavx512cd -mavx512pf -msha -mprefetchwt1 -mxsavec -mxsaves -mclflushopt -mavx512vl -mavx512dq -mavx512bw -mavx512vbmi -mavx512vbmi2 -mavx512ifma -mavx5124fmaps -mavx5124vnniw -mavx512vpopcntdq -mavx512vp2intersect -mclwb -mmwaitx -mclzero -mpku -msgx -mrdpid -mgfni -mavx512bitalg -mpconfig -mwbnoinvd -mavx512bf16 -menqcmd -mserialize -mtsxldtrk -mamx-tile -mamx-int8 -mamx-bf16 -mkl -mwidekl -mavxvnni -mavx512fp16 -mamx-fp16 -mprefetchi" } */
 /* { dg-add-options bind_pic_locally } */
 
 #include <mm_malloc.h>
@@ -125,7 +125,7 @@
 #define __builtin_ia32_shufpd(A, B, N) __builtin_ia32_shufpd(A, B, 0)
 
 /* xmmintrin.h */
-#define __builtin_prefetch(P, A, I) __builtin_prefetch(P, 0, _MM_HINT_NTA)
+#define __builtin_ia32_prefetch(A, B, C, D) __builtin_ia32_prefetch(A, 0, 3, 0)
 #define __builtin_ia32_pshufw(A, N) __builtin_ia32_pshufw(A, 0)
 #define __builtin_ia32_vec_set_v4hi(A, D, N) \
   __builtin_ia32_vec_set_v4hi(A, D, 0)
diff --git a/gcc/testsuite/gcc.target/i386/sse-23.c b/gcc/testsuite/gcc.target/i386/sse-23.c
index 151201d97..741694e87 100644
--- a/gcc/testsuite/gcc.target/i386/sse-23.c
+++ b/gcc/testsuite/gcc.target/i386/sse-23.c
@@ -94,7 +94,7 @@
 #define __builtin_ia32_shufpd(A, B, N) __builtin_ia32_shufpd(A, B, 0)
 
 /* xmmintrin.h */
-#define __builtin_prefetch(P, A, I) __builtin_prefetch(P, 0, _MM_HINT_NTA)
+#define __builtin_ia32_prefetch(A, B, C, D) __builtin_ia32_prefetch(A, 0, 3, 0)
 #define __builtin_ia32_pshufw(A, N) __builtin_ia32_pshufw(A, 0)
 #define __builtin_ia32_vec_set_v4hi(A, D, N) \
   __builtin_ia32_vec_set_v4hi(A, D, 0)
@@ -843,6 +843,6 @@
 #define __builtin_ia32_vpclmulqdq_v2di(A, B, C)  __builtin_ia32_vpclmulqdq_v2di(A, B, 1) 
 #define __builtin_ia32_vpclmulqdq_v8di(A, B, C)  __builtin_ia32_vpclmulqdq_v8di(A, B, 1) 
 
-#pragma GCC target ("sse4a,3dnow,avx,avx2,fma4,xop,aes,pclmul,popcnt,abm,lzcnt,bmi,bmi2,tbm,lwp,fsgsbase,rdrnd,f16c,fma,rtm,rdseed,prfchw,adx,fxsr,xsaveopt,avx512f,avx512er,avx512cd,avx512pf,sha,prefetchwt1,xsavec,xsaves,clflushopt,avx512bw,avx512dq,avx512vl,avx512vbmi,avx512ifma,avx5124fmaps,avx5124vnniw,avx512vpopcntdq,clwb,mwaitx,clzero,pku,sgx,rdpid,gfni,avx512vbmi2,vpclmulqdq,avx512bitalg,pconfig,wbnoinvd,avx512bf16,enqcmd,avx512vp2intersect,serialize,tsxldtrk,amx-tile,amx-int8,amx-bf16,kl,widekl,avxvnni,avx512fp16,amx-fp16")
+#pragma GCC target ("sse4a,3dnow,avx,avx2,fma4,xop,aes,pclmul,popcnt,abm,lzcnt,bmi,bmi2,tbm,lwp,fsgsbase,rdrnd,f16c,fma,rtm,rdseed,prfchw,adx,fxsr,xsaveopt,avx512f,avx512er,avx512cd,avx512pf,sha,prefetchwt1,xsavec,xsaves,clflushopt,avx512bw,avx512dq,avx512vl,avx512vbmi,avx512ifma,avx5124fmaps,avx5124vnniw,avx512vpopcntdq,clwb,mwaitx,clzero,pku,sgx,rdpid,gfni,avx512vbmi2,vpclmulqdq,avx512bitalg,pconfig,wbnoinvd,avx512bf16,enqcmd,avx512vp2intersect,serialize,tsxldtrk,amx-tile,amx-int8,amx-bf16,kl,widekl,avxvnni,avx512fp16,amx-fp16,prefetchi")
 
 #include <x86intrin.h>
diff --git a/gcc/testsuite/gcc.target/i386/x86gprintrin-1.c b/gcc/testsuite/gcc.target/i386/x86gprintrin-1.c
index 293be094b..efe7df13b 100644
--- a/gcc/testsuite/gcc.target/i386/x86gprintrin-1.c
+++ b/gcc/testsuite/gcc.target/i386/x86gprintrin-1.c
@@ -1,7 +1,7 @@
 /* Test that <x86gprintrin.h> is usable with -O -std=c89 -pedantic-errors.  */
 /* { dg-do compile } */
 /* { dg-options "-O -std=c89 -pedantic-errors -march=x86-64 -madx -mbmi -mbmi2 -mcldemote -mclflushopt -mclwb -mclzero -menqcmd -mfsgsbase -mfxsr -mhreset -mlzcnt -mlwp -mmovdiri -mmwaitx -mpconfig -mpopcnt -mpku -mptwrite -mrdpid -mrdrnd -mrdseed -mrtm -mserialize -msgx -mshstk -mtbm -mtsxldtrk -mwaitpkg -mwbnoinvd -mxsave -mxsavec -mxsaveopt -mxsaves -mno-sse -mno-mmx" } */
-/* { dg-additional-options "-muintr" { target { ! ia32 } } }  */
+/* { dg-additional-options "-muintr -mprefetchi" { target { ! ia32 } } }  */
 
 #include <x86gprintrin.h>
 
diff --git a/gcc/testsuite/gcc.target/i386/x86gprintrin-2.c b/gcc/testsuite/gcc.target/i386/x86gprintrin-2.c
index c63302757..5f6970df6 100644
--- a/gcc/testsuite/gcc.target/i386/x86gprintrin-2.c
+++ b/gcc/testsuite/gcc.target/i386/x86gprintrin-2.c
@@ -1,7 +1,7 @@
 /* { dg-do compile } */
 /* { dg-options "-O2 -Werror-implicit-function-declaration -march=x86-64 -madx -mbmi -mbmi2 -mcldemote -mclflushopt -mclwb -mclzero -menqcmd -mfsgsbase -mfxsr -mhreset -mlzcnt -mlwp -mmovdiri -mmwaitx -mpconfig -mpopcnt -mpku -mptwrite -mrdpid -mrdrnd -mrdseed -mrtm -mserialize -msgx -mshstk -mtbm -mtsxldtrk -mwaitpkg -mwbnoinvd -mxsave -mxsavec -mxsaveopt -mxsaves -mno-sse -mno-mmx" } */
 /* { dg-add-options bind_pic_locally } */
-/* { dg-additional-options "-muintr" { target { ! ia32 } } }  */
+/* { dg-additional-options "-muintr -mprefetchi" { target { ! ia32 } } }  */
 
 /* Test that the intrinsics in <x86gprintrin.h> compile with optimization.
    All of them are defined as inline functions that reference the proper
diff --git a/gcc/testsuite/gcc.target/i386/x86gprintrin-3.c b/gcc/testsuite/gcc.target/i386/x86gprintrin-3.c
index 3a7e1f4a1..5c075c375 100644
--- a/gcc/testsuite/gcc.target/i386/x86gprintrin-3.c
+++ b/gcc/testsuite/gcc.target/i386/x86gprintrin-3.c
@@ -1,7 +1,7 @@
 /* { dg-do compile } */
 /* { dg-options "-O0 -Werror-implicit-function-declaration -march=x86-64 -madx -mbmi -mbmi2 -mcldemote -mclflushopt -mclwb -mclzero -menqcmd -mfsgsbase -mfxsr -mhreset -mlzcnt -mlwp -mmovdiri -mmwaitx -mpconfig -mpopcnt -mpku -mptwrite -mrdpid -mrdrnd -mrdseed -mrtm -mserialize -msgx -mshstk -mtbm -mtsxldtrk -mwaitpkg -mwbnoinvd -mxsave -mxsavec -mxsaveopt -mxsaves -mno-sse -mno-mmx" } */
 /* { dg-add-options bind_pic_locally } */
-/* { dg-additional-options "-muintr" { target { ! ia32 } } }  */
+/* { dg-additional-options "-muintr -mprefetchi" { target { ! ia32 } } }  */
 
 /* Test that the intrinsics in <x86gprintrin.h> compile without optimization.
    All of them are defined as inline functions that reference the proper
diff --git a/gcc/testsuite/gcc.target/i386/x86gprintrin-4.c b/gcc/testsuite/gcc.target/i386/x86gprintrin-4.c
index d8a6126e5..bda4ecea3 100644
--- a/gcc/testsuite/gcc.target/i386/x86gprintrin-4.c
+++ b/gcc/testsuite/gcc.target/i386/x86gprintrin-4.c
@@ -15,7 +15,7 @@
 
 #ifndef DIFFERENT_PRAGMAS
 #ifdef __x86_64__
-#pragma GCC target ("adx,bmi,bmi2,fsgsbase,fxsr,hreset,lwp,lzcnt,popcnt,rdrnd,rdseed,tbm,rtm,serialize,tsxldtrk,uintr,xsaveopt")
+#pragma GCC target ("adx,bmi,bmi2,fsgsbase,fxsr,hreset,lwp,lzcnt,popcnt,prefetchi,rdrnd,rdseed,tbm,rtm,serialize,tsxldtrk,uintr,xsaveopt")
 #else
 #pragma GCC target ("adx,bmi,bmi2,fsgsbase,fxsr,hreset,lwp,lzcnt,popcnt,rdrnd,rdseed,tbm,rtm,serialize,tsxldtrk,xsaveopt")
 #endif
diff --git a/gcc/testsuite/gcc.target/i386/x86gprintrin-5.c b/gcc/testsuite/gcc.target/i386/x86gprintrin-5.c
index 9ef66fdad..4aadfd0b3 100644
--- a/gcc/testsuite/gcc.target/i386/x86gprintrin-5.c
+++ b/gcc/testsuite/gcc.target/i386/x86gprintrin-5.c
@@ -28,7 +28,7 @@
 #define __builtin_ia32_xabort(M) __builtin_ia32_xabort(1)
 
 #ifdef __x86_64__
-#pragma GCC target ("adx,bmi,bmi2,clflushopt,clwb,clzero,enqcmd,fsgsbase,fxsr,hreset,lwp,lzcnt,mwaitx,pconfig,pku,popcnt,rdpid,rdrnd,rdseed,tbm,rtm,serialize,sgx,tsxldtrk,uintr,xsavec,xsaveopt,xsaves,wbnoinvd")
+#pragma GCC target ("adx,bmi,bmi2,clflushopt,clwb,clzero,enqcmd,fsgsbase,fxsr,hreset,lwp,lzcnt,mwaitx,pconfig,pku,popcnt,prefetchi,rdpid,rdrnd,rdseed,tbm,rtm,serialize,sgx,tsxldtrk,uintr,xsavec,xsaveopt,xsaves,wbnoinvd")
 #else
 #pragma GCC target ("adx,bmi,bmi2,clflushopt,clwb,clzero,enqcmd,fsgsbase,fxsr,hreset,lwp,lzcnt,mwaitx,pconfig,pku,popcnt,rdpid,rdrnd,rdseed,tbm,rtm,serialize,sgx,tsxldtrk,xsavec,xsaveopt,xsaves,wbnoinvd")
 #endif
-- 
2.31.1