Delete x86 deprecated pcommit instruction support

Delete x86 pcommit instruction support, which has been deprecated:

https://software.intel.com/en-us/blogs/2016/09/12/deprecate-pcommit-instruction

gcc/

	* common/config/i386/i386-common.c (OPTION_MASK_ISA_PCOMMIT_UNSET,
	OPTION_MASK_ISA_PCOMMIT_SET): Deleted definitions.
	(ix86_handle_option): Deleted handle of OPT_mpcommit.
	* config.gcc: Deleted pcommitintrin.h
	* config/i386/pcommitintrin.h: Deleted file.
	* config/i386/cpuid.h (bit_PCOMMIT): Deleted.
	* config/i386/driver-i386.c (host_detect_local_cpu): Deleted pcommit
	detection.
	* config/i386/i386-c.c (ix86_target_macros_internal): Deleted define
	__PCOMMIT__.
	* config/i386/i386.c (ix86_target_string): Deleted -mpcommit.
	(PTA_PCOMMIT): Deleted define.
	(ix86_option_override_internal): Deleted handle of option.
	(ix86_valid_target_attribute_inner_p): Deleted pcommit.
	* config/i386/i386-builtin.def (IX86_BUILTIN_PCOMMIT,
	__builtin_ia32_pcommit): Deleted.
	* config/i386/i386.h (TARGET_PCOMMIT, TARGET_PCOMMIT_P): Deleted.
	* config/i386/i386.md (unspecv): Deleted UNSPECV_PCOMMIT.
	(pcommit): Deleted instruction.
	* config/i386/i386.opt: Mention -mpcommit deprecation.
	* config/i386/x86intrin.h: Deleted inclusion of pcommitintrin.h.

gcc/testsuite/

	* gcc.target/i386/pcommit-1.c: Deleted.
	* gcc.target/i386/sse-12.c: Deleted -pcommit option.
	* gcc.target/i386/sse-13.c: Ditto.
	* gcc.target/i386/sse-14.c: Ditto.
	* gcc.target/i386/sse-22.c: Ditto.
	* gcc.target/i386/sse-23.c: Ditto.
	* g++.dg/other/i386-2.C: Ditto.

From-SVN: r240816

10 files changed, 8 insertions, 86 deletions

diff --git a/gcc/config/i386/cpuid.h b/gcc/config/i386/cpuid.h
index 4ea3f74..2a946bf 100644
--- a/gcc/config/i386/cpuid.h
+++ b/gcc/config/i386/cpuid.h
@@ -82,7 +82,6 @@
 #define bit_RDSEED	(1 << 18)
 #define bit_ADX	(1 << 19)
 #define bit_AVX512IFMA	(1 << 21)
-#define bit_PCOMMIT	(1 << 22)
 #define bit_CLFLUSHOPT	(1 << 23)
 #define bit_CLWB	(1 << 24)
 #define bit_AVX512PF	(1 << 26)
diff --git a/gcc/config/i386/driver-i386.c b/gcc/config/i386/driver-i386.c
index 7460b59..e026482 100644
--- a/gcc/config/i386/driver-i386.c
+++ b/gcc/config/i386/driver-i386.c
@@ -413,8 +413,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
   unsigned int has_clflushopt = 0, has_xsavec = 0, has_xsaves = 0;
   unsigned int has_avx512dq = 0, has_avx512bw = 0, has_avx512vl = 0;
   unsigned int has_avx512vbmi = 0, has_avx512ifma = 0, has_clwb = 0;
-  unsigned int has_pcommit = 0, has_mwaitx = 0;
-  unsigned int has_clzero = 0, has_pku = 0;
+  unsigned int has_mwaitx = 0, has_clzero = 0, has_pku = 0;
 
   bool arch;
 
@@ -492,7 +491,6 @@ const char *host_detect_local_cpu (int argc, const char **argv)
       has_avx512pf = ebx & bit_AVX512PF;
       has_avx512cd = ebx & bit_AVX512CD;
       has_sha = ebx & bit_SHA;
-      has_pcommit = ebx & bit_PCOMMIT;
       has_clflushopt = ebx & bit_CLFLUSHOPT;
       has_clwb = ebx & bit_CLWB;
       has_avx512dq = ebx & bit_AVX512DQ;
@@ -1024,7 +1022,6 @@ const char *host_detect_local_cpu (int argc, const char **argv)
       const char *avx512ifma = has_avx512ifma ? " -mavx512ifma" : " -mno-avx512ifma";
       const char *avx512vbmi = has_avx512vbmi ? " -mavx512vbmi" : " -mno-avx512vbmi";
       const char *clwb = has_clwb ? " -mclwb" : " -mno-clwb";
-      const char *pcommit = has_pcommit ? " -mpcommit" : " -mno-pcommit";
       const char *mwaitx  = has_mwaitx  ? " -mmwaitx"  : " -mno-mwaitx"; 
       const char *clzero  = has_clzero  ? " -mclzero"  : " -mno-clzero";
       const char *pku = has_pku ? " -mpku" : " -mno-pku";
@@ -1036,7 +1033,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
 			fxsr, xsave, xsaveopt, avx512f, avx512er,
 			avx512cd, avx512pf, prefetchwt1, clflushopt,
 			xsavec, xsaves, avx512dq, avx512bw, avx512vl,
-			avx512ifma, avx512vbmi, clwb, pcommit, mwaitx,
+			avx512ifma, avx512vbmi, clwb, mwaitx,
 			clzero, pku, NULL);
     }
 
diff --git a/gcc/config/i386/i386-builtin.def b/gcc/config/i386/i386-builtin.def
index de65ea7..8518b74 100644
--- a/gcc/config/i386/i386-builtin.def
+++ b/gcc/config/i386/i386-builtin.def
@@ -377,9 +377,6 @@ BDESC (OPTION_MASK_ISA_AVX512VL, CODE_FOR_avx512vl_ss_truncatev4siv4hi2_mask_sto
 BDESC (OPTION_MASK_ISA_AVX512VL, CODE_FOR_avx512vl_us_truncatev8siv8hi2_mask_store, "__builtin_ia32_pmovusdw256mem_mask", IX86_BUILTIN_PMOVUSDW256_MEM, UNKNOWN, (int) VOID_FTYPE_PV8HI_V8SI_UQI)
 BDESC (OPTION_MASK_ISA_AVX512VL, CODE_FOR_avx512vl_us_truncatev4siv4hi2_mask_store, "__builtin_ia32_pmovusdw128mem_mask", IX86_BUILTIN_PMOVUSDW128_MEM, UNKNOWN, (int) VOID_FTYPE_PV8HI_V4SI_UQI)
 
-/* PCOMMIT.  */
-BDESC (OPTION_MASK_ISA_PCOMMIT, CODE_FOR_pcommit, "__builtin_ia32_pcommit", IX86_BUILTIN_PCOMMIT, UNKNOWN, (int) VOID_FTYPE_VOID)
-
 /* RDPKRU and WRPKRU.  */
 BDESC (OPTION_MASK_ISA_PKU, CODE_FOR_rdpkru,  "__builtin_ia32_rdpkru", IX86_BUILTIN_RDPKRU, UNKNOWN, (int) UNSIGNED_FTYPE_VOID)
 BDESC (OPTION_MASK_ISA_PKU, CODE_FOR_wrpkru,  "__builtin_ia32_wrpkru", IX86_BUILTIN_WRPKRU, UNKNOWN, (int) VOID_FTYPE_UNSIGNED)
diff --git a/gcc/config/i386/i386-c.c b/gcc/config/i386/i386-c.c
index f93a09d..d4d2674 100644
--- a/gcc/config/i386/i386-c.c
+++ b/gcc/config/i386/i386-c.c
@@ -433,8 +433,6 @@ ix86_target_macros_internal (HOST_WIDE_INT isa_flag,
     def_or_undef (parse_in, "__XSAVES__");
   if (isa_flag & OPTION_MASK_ISA_MPX)
     def_or_undef (parse_in, "__MPX__");
-  if (isa_flag & OPTION_MASK_ISA_PCOMMIT)
-    def_or_undef (parse_in, "__PCOMMIT__");
   if (isa_flag & OPTION_MASK_ISA_CLWB)
     def_or_undef (parse_in, "__CLWB__");
   if (isa_flag & OPTION_MASK_ISA_MWAITX)
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 58758d32..5d0917a 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -4212,7 +4212,6 @@ ix86_target_string (HOST_WIDE_INT isa, int flags, int ix86_flags,
     { "-mxsaves",	OPTION_MASK_ISA_XSAVES },
     { "-mmpx",          OPTION_MASK_ISA_MPX },
     { "-mclwb",		OPTION_MASK_ISA_CLWB },
-    { "-mpcommit",	OPTION_MASK_ISA_PCOMMIT },
     { "-mmwaitx",	OPTION_MASK_ISA_MWAITX  },
     { "-mclzero",	OPTION_MASK_ISA_CLZERO  },
     { "-mpku",		OPTION_MASK_ISA_PKU  },
@@ -4800,11 +4799,10 @@ ix86_option_override_internal (bool main_args_p,
 #define PTA_AVX512IFMA		(HOST_WIDE_INT_1 << 53)
 #define PTA_AVX512VBMI		(HOST_WIDE_INT_1 << 54)
 #define PTA_CLWB		(HOST_WIDE_INT_1 << 55)
-#define PTA_PCOMMIT		(HOST_WIDE_INT_1 << 56)
-#define PTA_MWAITX		(HOST_WIDE_INT_1 << 57)
-#define PTA_CLZERO		(HOST_WIDE_INT_1 << 58)
-#define PTA_NO_80387		(HOST_WIDE_INT_1 << 59)
-#define PTA_PKU		(HOST_WIDE_INT_1 << 60)
+#define PTA_MWAITX		(HOST_WIDE_INT_1 << 56)
+#define PTA_CLZERO		(HOST_WIDE_INT_1 << 57)
+#define PTA_NO_80387		(HOST_WIDE_INT_1 << 58)
+#define PTA_PKU		(HOST_WIDE_INT_1 << 59)
 
 #define PTA_CORE2 \
   (PTA_64BIT | PTA_MMX | PTA_SSE | PTA_SSE2 | PTA_SSE3 | PTA_SSSE3 \
@@ -5427,9 +5425,6 @@ ix86_option_override_internal (bool main_args_p,
 	if (processor_alias_table[i].flags & PTA_PREFETCHWT1
 	    && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_PREFETCHWT1))
 	  opts->x_ix86_isa_flags |= OPTION_MASK_ISA_PREFETCHWT1;
-	if (processor_alias_table[i].flags & PTA_PCOMMIT
-	    && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_PCOMMIT))
-	  opts->x_ix86_isa_flags |= OPTION_MASK_ISA_PCOMMIT;
 	if (processor_alias_table[i].flags & PTA_CLWB
 	    && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_CLWB))
 	  opts->x_ix86_isa_flags |= OPTION_MASK_ISA_CLWB;
@@ -6559,7 +6554,6 @@ ix86_valid_target_attribute_inner_p (tree args, char *p_strings[],
     IX86_ATTR_ISA ("avx512vbmi",	OPT_mavx512vbmi),
     IX86_ATTR_ISA ("avx512ifma",	OPT_mavx512ifma),
     IX86_ATTR_ISA ("clwb",	OPT_mclwb),
-    IX86_ATTR_ISA ("pcommit",	OPT_mpcommit),
     IX86_ATTR_ISA ("mwaitx",	OPT_mmwaitx),
     IX86_ATTR_ISA ("clzero",    OPT_mclzero),
     IX86_ATTR_ISA ("pku",	OPT_mpku),
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index a395532..add7a64 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -152,8 +152,6 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #define TARGET_PREFETCHWT1_P(x)	TARGET_ISA_PREFETCHWT1_P(x)
 #define TARGET_MPX	TARGET_ISA_MPX
 #define TARGET_MPX_P(x)	TARGET_ISA_MPX_P(x)
-#define TARGET_PCOMMIT	TARGET_ISA_PCOMMIT
-#define TARGET_PCOMMIT_P(x)	TARGET_ISA_PCOMMIT_P(x)
 #define TARGET_CLWB	TARGET_ISA_CLWB
 #define TARGET_CLWB_P(x)	TARGET_ISA_CLWB_P(x)
 #define TARGET_MWAITX	TARGET_ISA_MWAITX
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 6337a5d..32794ac 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -259,9 +259,6 @@
   ;; For CLWB support
   UNSPECV_CLWB
 
-  ;; For PCOMMIT support
-  UNSPECV_PCOMMIT
-
   ;; For CLFLUSHOPT support
   UNSPECV_CLFLUSHOPT
 
@@ -19369,13 +19366,6 @@
   [(set_attr "type" "other")
    (set_attr "length" "3")])
 
-(define_insn "pcommit"
-  [(unspec_volatile [(const_int 0)] UNSPECV_PCOMMIT)]
-  "TARGET_PCOMMIT"
-  "pcommit"
-  [(set_attr "type" "other")
-   (set_attr "length" "4")])
-
 (define_insn "clwb"
   [(unspec_volatile [(match_operand 0 "address_operand" "p")]
                    UNSPECV_CLWB)]
diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt
index 4b75ba8..9eef558 100644
--- a/gcc/config/i386/i386.opt
+++ b/gcc/config/i386/i386.opt
@@ -752,8 +752,8 @@ Target Report Mask(ISA_CLWB) Var(ix86_isa_flags) Save
 Support CLWB instruction.
 
 mpcommit
-Target Report Mask(ISA_PCOMMIT) Var(ix86_isa_flags) Save
-Support PCOMMIT instruction.
+Target Undocumented Warn(%<-mpcommit%> was deprecated)
+;; Deprecated
 
 mfxsr
 Target Report Mask(ISA_FXSR) Var(ix86_isa_flags) Save
diff --git a/gcc/config/i386/pcommitintrin.h b/gcc/config/i386/pcommitintrin.h
deleted file mode 100644
index 44e7a77..0000000
--- a/gcc/config/i386/pcommitintrin.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/* Copyright (C) 2013-2016 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 _X86INTRIN_H_INCLUDED
-# error "Never use <pcommitintrin.h> directly; include <x86intrin.h> instead."
-#endif
-
-#ifndef _PCOMMITINTRIN_H_INCLUDED
-#define _PCOMMITINTRIN_H_INCLUDED
-
-#ifndef __PCOMMIT__
-#pragma GCC push_options
-#pragma GCC target("pcommit")
-#define __DISABLE_PCOMMIT__
-#endif /* __PCOMMIT__ */
-
-extern __inline void
-__attribute__((__gnu_inline__, __always_inline__, __artificial__))
-_mm_pcommit (void)
-{
-  __builtin_ia32_pcommit ();
-}
-
-#ifdef __DISABLE_PCOMMIT__
-#undef __DISABLE_PCOMMIT__
-#pragma GCC pop_options
-#endif /* __DISABLE_PCOMMIT__ */
-
-#endif /* _PCOMMITINTRIN_H_INCLUDED */
diff --git a/gcc/config/i386/x86intrin.h b/gcc/config/i386/x86intrin.h
index e666c4e..ee5c38a 100644
--- a/gcc/config/i386/x86intrin.h
+++ b/gcc/config/i386/x86intrin.h
@@ -83,8 +83,6 @@
 
 #include <clwbintrin.h>
 
-#include <pcommitintrin.h>
-
 #include <clflushoptintrin.h>
 
 #include <xsavesintrin.h>