[PATCH] Remove AVX512_VP2INTERSECT from PTA_SAPPHIRERAPIDS

["Cui,Lili" <lili.cui@intel.com>]

Hi Hongtao,

   I backported this patch to gcc-12 release.

gcc/ChangeLog:

	* config/i386/driver-i386.cc (host_detect_local_cpu):
	Move sapphirerapids out of AVX512_VP2INTERSECT.
	* config/i386/i386.h: Remove AVX512_VP2INTERSECT from PTA_SAPPHIRERAPIDS
	* doc/invoke.texi: Remove AVX512_VP2INTERSECT from SAPPHIRERAPIDS
---
 gcc/config/i386/driver-i386.cc | 13 +++++--------
 gcc/config/i386/i386.h         |  7 +++----
 gcc/doc/invoke.texi            |  8 ++++----
 3 files changed, 12 insertions(+), 16 deletions(-)

diff --git a/gcc/config/i386/driver-i386.cc b/gcc/config/i386/driver-i386.cc
index 9e0ae0b2baa..fcf23fd921d 100644
--- a/gcc/config/i386/driver-i386.cc
+++ b/gcc/config/i386/driver-i386.cc
@@ -574,15 +574,12 @@ const char *host_detect_local_cpu (int argc, const char **argv)
 	      /* This is unknown family 0x6 CPU.  */
 	      if (has_feature (FEATURE_AVX))
 		{
+		  /* Assume Tiger Lake */
 		  if (has_feature (FEATURE_AVX512VP2INTERSECT))
-		    {
-		      if (has_feature (FEATURE_TSXLDTRK))
-			/* Assume Sapphire Rapids.  */
-			cpu = "sapphirerapids";
-		      else
-			/* Assume Tiger Lake */
-			cpu = "tigerlake";
-		    }
+		    cpu = "tigerlake";
+		  /* Assume Sapphire Rapids.  */
+		  else if (has_feature (FEATURE_TSXLDTRK))
+		    cpu = "sapphirerapids";
 		  /* Assume Cooper Lake */
 		  else if (has_feature (FEATURE_AVX512BF16))
 		    cpu = "cooperlake";
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index 363082ba47b..a61c32b8957 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -2328,10 +2328,9 @@ constexpr wide_int_bitmask PTA_ICELAKE_SERVER = PTA_ICELAKE_CLIENT
 constexpr wide_int_bitmask PTA_TIGERLAKE = PTA_ICELAKE_CLIENT | PTA_MOVDIRI
   | PTA_MOVDIR64B | PTA_CLWB | PTA_AVX512VP2INTERSECT | PTA_KL | PTA_WIDEKL;
 constexpr wide_int_bitmask PTA_SAPPHIRERAPIDS = PTA_ICELAKE_SERVER | PTA_MOVDIRI
-  | PTA_MOVDIR64B | PTA_AVX512VP2INTERSECT | PTA_ENQCMD | PTA_CLDEMOTE
-  | PTA_PTWRITE | PTA_WAITPKG | PTA_SERIALIZE | PTA_TSXLDTRK | PTA_AMX_TILE
-  | PTA_AMX_INT8 | PTA_AMX_BF16 | PTA_UINTR | PTA_AVXVNNI | PTA_AVX512FP16
-  | PTA_AVX512BF16;
+  | PTA_MOVDIR64B | PTA_ENQCMD | PTA_CLDEMOTE | PTA_PTWRITE | PTA_WAITPKG
+  | PTA_SERIALIZE | PTA_TSXLDTRK | PTA_AMX_TILE | PTA_AMX_INT8 | PTA_AMX_BF16
+  | PTA_UINTR | PTA_AVXVNNI | PTA_AVX512FP16 | PTA_AVX512BF16;
 constexpr wide_int_bitmask PTA_KNL = PTA_BROADWELL | PTA_AVX512PF
   | PTA_AVX512ER | PTA_AVX512F | PTA_AVX512CD | PTA_PREFETCHWT1;
 constexpr wide_int_bitmask PTA_BONNELL = PTA_CORE2 | PTA_MOVBE;
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 3749e06f13e..cee057a70bf 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -31541,11 +31541,11 @@ Intel sapphirerapids CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3,
 SSSE3, SSE4.1, SSE4.2, POPCNT, CX16, SAHF, FXSR, AVX, XSAVE, PCLMUL, FSGSBASE,
 RDRND, F16C, AVX2, BMI, BMI2, LZCNT, FMA, MOVBE, HLE, RDSEED, ADCX, PREFETCHW,
 AES, CLFLUSHOPT, XSAVEC, XSAVES, SGX, AVX512F, AVX512VL, AVX512BW, AVX512DQ,
-AVX512CD, PKU, AVX512VBMI, AVX512IFMA, SHA, AVX512VNNI, GFNI, VAES, AVX512VBMI2
+AVX512CD, PKU, AVX512VBMI, AVX512IFMA, SHA, AVX512VNNI, GFNI, VAES, AVX512VBMI2,
 VPCLMULQDQ, AVX512BITALG, RDPID, AVX512VPOPCNTDQ, PCONFIG, WBNOINVD, CLWB,
-MOVDIRI, MOVDIR64B, AVX512VP2INTERSECT, ENQCMD, CLDEMOTE, PTWRITE, WAITPKG,
-SERIALIZE, TSXLDTRK, UINTR, AMX-BF16, AMX-TILE, AMX-INT8, AVX-VNNI, AVX512FP16
-and AVX512BF16 instruction set support.
+MOVDIRI, MOVDIR64B, ENQCMD, CLDEMOTE, PTWRITE, WAITPKG, SERIALIZE, TSXLDTRK,
+UINTR, AMX-BF16, AMX-TILE, AMX-INT8, AVX-VNNI, AVX512FP16 and AVX512BF16
+instruction set support.
 
 @item alderlake
 Intel Alderlake CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3, SSSE3,
-- 
2.17.1

Thanks,
Lili.