x86: Move AESNI generation to Skylake and Goldmont

The instruction set first appeared with Westmere, but not all processors
in that and the next few generations have the instructions. According to
Wikipedia[1], the first generation in which all SKUs have AES
instructions are Skylake and Goldmont. I can't find any Skylake,
Kabylake, Kabylake-R or Cannon Lake currently listed at
https://ark.intel.com that says "Intel® AES New Instructions" "No".

[1] https://en.wikipedia.org/wiki/AES_instruction_set

2018-08-30  Thiago Macieira  <thiago.macieira@intel.com>

	* config/i386/i386.c (PTA_WESTMERE): Remove PTA_AES.
	(PTA_SKYLAKE): Add PTA_AES.
	(PTA_GOLDMONT): Likewise.

From-SVN: r263989

gcc/ChangeLog

+2018-08-30  Thiago Macieira  <thiago.macieira@intel.com>
+
+	* config/i386/i386.c (PTA_WESTMERE): Remove PTA_AES.
+	(PTA_SKYLAKE): Add PTA_AES.
+	(PTA_GOLDMONT): Likewise.
+
 2018-08-29  Jan Hubicka  <jh@suse.cz>
 
 	PR lto/86517

gcc/config/i386/i386.c

@@ -3479,7 +3479,7 @@ ix86_option_override_internal (bool main_args_p,
     | PTA_SSE3 | PTA_SSSE3 | PTA_CX16 | PTA_FXSR;
   const wide_int_bitmask PTA_NEHALEM = PTA_CORE2 | PTA_SSE4_1 | PTA_SSE4_2
     | PTA_POPCNT;
-  const wide_int_bitmask PTA_WESTMERE = PTA_NEHALEM | PTA_AES | PTA_PCLMUL;
+  const wide_int_bitmask PTA_WESTMERE = PTA_NEHALEM | PTA_PCLMUL;
   const wide_int_bitmask PTA_SANDYBRIDGE = PTA_WESTMERE | PTA_AVX | PTA_XSAVE
     | PTA_XSAVEOPT;
   const wide_int_bitmask PTA_IVYBRIDGE = PTA_SANDYBRIDGE | PTA_FSGSBASE
@@ -3488,7 +3488,7 @@ ix86_option_override_internal (bool main_args_p,
     | PTA_BMI2 | PTA_LZCNT | PTA_FMA | PTA_MOVBE | PTA_HLE;
   const wide_int_bitmask PTA_BROADWELL = PTA_HASWELL | PTA_ADX | PTA_PRFCHW
     | PTA_RDSEED;
-  const wide_int_bitmask PTA_SKYLAKE = PTA_BROADWELL | PTA_CLFLUSHOPT
+  const wide_int_bitmask PTA_SKYLAKE = PTA_BROADWELL | PTA_AES | PTA_CLFLUSHOPT
     | PTA_XSAVEC | PTA_XSAVES | PTA_SGX;
   const wide_int_bitmask PTA_SKYLAKE_AVX512 = PTA_SKYLAKE | PTA_AVX512F
     | PTA_AVX512CD | PTA_AVX512VL | PTA_AVX512BW | PTA_AVX512DQ | PTA_PKU
@@ -3505,7 +3505,7 @@ ix86_option_override_internal (bool main_args_p,
     | PTA_AVX512F | PTA_AVX512CD;
   const wide_int_bitmask PTA_BONNELL = PTA_CORE2 | PTA_MOVBE;
   const wide_int_bitmask PTA_SILVERMONT = PTA_WESTMERE | PTA_MOVBE | PTA_RDRND;
-  const wide_int_bitmask PTA_GOLDMONT = PTA_SILVERMONT | PTA_SHA | PTA_XSAVE
+  const wide_int_bitmask PTA_GOLDMONT = PTA_SILVERMONT | PTA_AES | PTA_SHA | PTA_XSAVE
     | PTA_RDSEED | PTA_XSAVEC | PTA_XSAVES | PTA_CLFLUSHOPT | PTA_XSAVEOPT
     | PTA_FSGSBASE;
   const wide_int_bitmask PTA_GOLDMONT_PLUS = PTA_GOLDMONT | PTA_RDPID