config.gcc: Support "knm".

gcc/

        * config.gcc: Support "knm".
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect "knm".
        * config/i386/i386-c.c (ix86_target_macros_internal): Handle
        PROCESSOR_KNM.
        * config/i386/i386.c (m_KNM): Define.
        (processor_target_table): Add "knm".
        (PTA_KNM): Define.
        (ix86_option_override_internal): Add "knm".
        (ix86_issue_rate): Add PROCESSOR_KNM.
        (ix86_adjust_cost): Ditto.
        (ia32_multipass_dfa_lookahead): Ditto.
        (get_builtin_code_for_version): Handle PROCESSOR_KNM.
        (fold_builtin_cpu): Add M_INTEL_KNM.
        * config/i386/i386.h (processor_costs): Define TARGET_KNM.
        (processor_type): Add PROCESSOR_KNM.
         * config/i386/x86-tune.def: Add m_KNM.
        * doc/invoke.texi: Add knm as x86 -march=/-mtune= CPU type.

libgcc/
        * config/i386/cpuinfo.h (processor_types): Add INTEL_KNM.
        * config/i386/cpuinfo.c (get_intel_cpu): Detect Knights Mill.

gcc/testsuite/

        * gcc.target/i386/builtin_target.c: Test knm.
        * gcc.target/i386/funcspec-56.inc: Test arch=knm.

From-SVN: r253013

3 files changed, 30 insertions, 20 deletions

diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index b548922..1a627c0 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,30 +1,35 @@
+2017-09-20  Sebastian Peryt  <sebastian.peryt@intel.com>
+
+	* config/i386/cpuinfo.h (processor_types): Add INTEL_KNM.
+	* config/i386/cpuinfo.c (get_intel_cpu): Detect Knights Mill.
+
 2017-09-17  Daniel Santos  <daniel.santos@pobox.com>
 
-	config/i386/i386-asm.h (PASTE2): New macro.
+	* config/i386/i386-asm.h (PASTE2): New macro.
 	(ASMNAME): Modify to use PASTE2.
 	(MS2SYSV_STUB_PREFIX): New macro for isa prefix.
 	(MS2SYSV_STUB_BEGIN, MS2SYSV_STUB_END): New macros for stub headers.
-	config/i386/resms64.S: Rename to a header file, use MS2SYSV_STUB_BEGIN
+	* config/i386/resms64.S: Rename to a header file, use MS2SYSV_STUB_BEGIN
 	instead of HIDDEN_FUNC and MS2SYSV_STUB_END instead of FUNC_END.
-	config/i386/resms64f.S: Likewise.
-	config/i386/resms64fx.S: Likewise.
-	config/i386/resms64x.S: Likewise.
-	config/i386/savms64.S: Likewise.
-	config/i386/savms64f.S: Likewise.
-	config/i386/avx_resms64.S: New file that only defines a macro and
+	* config/i386/resms64f.S: Likewise.
+	* config/i386/resms64fx.S: Likewise.
+	* config/i386/resms64x.S: Likewise.
+	* config/i386/savms64.S: Likewise.
+	* config/i386/savms64f.S: Likewise.
+	* config/i386/avx_resms64.S: New file that only defines a macro and
 	includes it's corresponding header file.
-	config/i386/avx_resms64f.S: Likewise.
-	config/i386/avx_resms64fx.S: Likewise.
-	config/i386/avx_resms64x.S: Likewise.
-	config/i386/avx_savms64.S: Likewise.
-	config/i386/avx_savms64f.S: Likewise.
-	config/i386/sse_resms64.S: Likewise.
-	config/i386/sse_resms64f.S: Likewise.
-	config/i386/sse_resms64fx.S: Likewise.
-	config/i386/sse_resms64x.S: Likewise.
-	config/i386/sse_savms64.S: Likewise.
-	config/i386/sse_savms64f.S: Likewise.
-	config/i386/t-msabi: Modified to add avx and sse versions of stubs.
+	* config/i386/avx_resms64f.S: Likewise.
+	* config/i386/avx_resms64fx.S: Likewise.
+	* config/i386/avx_resms64x.S: Likewise.
+	* config/i386/avx_savms64.S: Likewise.
+	* config/i386/avx_savms64f.S: Likewise.
+	* config/i386/sse_resms64.S: Likewise.
+	* config/i386/sse_resms64f.S: Likewise.
+	* config/i386/sse_resms64fx.S: Likewise.
+	* config/i386/sse_resms64x.S: Likewise.
+	* config/i386/sse_savms64.S: Likewise.
+	* config/i386/sse_savms64f.S: Likewise.
+	* config/i386/t-msabi: Modified to add avx and sse versions of stubs.
 
 2017-09-01  Olivier Hainque  <hainque@adacore.com>
 
diff --git a/libgcc/config/i386/cpuinfo.c b/libgcc/config/i386/cpuinfo.c
index b008fb6..c2ab8be 100644
--- a/libgcc/config/i386/cpuinfo.c
+++ b/libgcc/config/i386/cpuinfo.c
@@ -137,6 +137,10 @@ get_intel_cpu (unsigned int family, unsigned int model, unsigned int brand_id)
 	      /* Knights Landing.  */
 	      __cpu_model.__cpu_type = INTEL_KNL;
 	      break;
+	    case 0x85:
+	      /* Knights Mill. */
+	      __cpu_model.__cpu_type = INTEL_KNM;
+	      break;
 	    case 0x1a:
 	    case 0x1e:
 	    case 0x1f:
diff --git a/libgcc/config/i386/cpuinfo.h b/libgcc/config/i386/cpuinfo.h
index 872b45e..3978401 100644
--- a/libgcc/config/i386/cpuinfo.h
+++ b/libgcc/config/i386/cpuinfo.h
@@ -47,6 +47,7 @@ enum processor_types
   AMD_BTVER1,
   AMD_BTVER2,  
   AMDFAM17H,
+  INTEL_KNM,
   CPU_TYPE_MAX
 };