Patchwork [i386] : AMD bdver3 enablement

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Submitter Gopalasubramanian, Ganesh
Date Oct. 11, 2012, 7:19 a.m.
Message ID <EB4625145972F94C9680D8CADD6516153974476B@sausexdag04.amd.com>
Download mbox | patch
Permalink /patch/190827/
State New
Headers show

Comments

Gopalasubramanian, Ganesh - Oct. 11, 2012, 7:19 a.m.
Hi 

The attached patch (Patch.txt) enables the next version of AMD's bulldozer core.
A new file (bdver3.md) is also attached which describes the pipelines.

Presently, the tuning is copied mostly from its predecessor. 
However, the pipelines are modeled for the new core.

"Make -k check" passes.

Is it OK for upstream?

Regards
Ganesh

2012-10-11  Ganesh Gopalasubramanian  <Ganesh.Gopalasubramanian@amd.com>

	bdver3 Enablement
	* gcc/doc/extend.texi: Add details about bdver3.
	* gcc/doc/invoke.texi: Add details about bdver3.
	* config.gcc (i[34567]86-*-linux* | ...): Add bdver3.
	(case ${target}): Add bdver3.
	* config/i386/i386.h (TARGET_BDVER3): New definition.
	* config/i386/i386.md (define_attr "cpu"): Add bdver3.
	* config/i386/cpuid.h (bit_XSAVEOPT): New field for 
	getting the xsaveopt cpuid flag.
	* config/i386/sse.md (sseshuf): New instruction 
	attribute added for identifying the shuffle instructions.
	* config/i386/i386.opt (flag_dispatch_scheduler): Add bdver3.
	* config/i386/i386-c.c (ix86_target_macros_internal): Add
	bdver3 def_and_undef
	* config/i386/driver-i386.c (host_detect_local_cpu): Let
	-march=native recognize bdver3 processors.	
	* config/i386/i386.c (struct processor_costs btver2_cost): New
	bdver3 cost table.
	(m_BDVER3): New definition.
	(m_AMD_MULTIPLE): Includes m_BDVER3.
	(initial_ix86_tune_features): Add bdver3 tune.
	(processor_target_table): Add bdver3 entry.
	(static const char *const cpu_names): Add bdver3 entry.
	(software_prefetching_beneficial_p): Add bdver3.
	(ix86_option_override_internal): Add bdver3 instruction sets.
	(ix86_issue_rate): Add bdver3.
	(ix86_adjust_cost): Add bdver3.
	(enum target_cpu_default): Add TARGET_CPU_DEFAULT_bdver3.
	(enum processor_type): Add PROCESSOR_BDVER3.
	* config/i386/bdver3.md: New file describing bdver3 pipelines.
Uros Bizjak - Oct. 11, 2012, 5:06 p.m.
On Thu, Oct 11, 2012 at 9:19 AM, Gopalasubramanian, Ganesh
<Ganesh.Gopalasubramanian@amd.com> wrote:

> The attached patch (Patch.txt) enables the next version of AMD's bulldozer core.

Please handle new sseshuf type attribute in various attribute
calculations. You should at least add it to unit attribute
calculation, but please review other calculations. This attribute
replaces sselog, so probably all places that mention sselog needs to
be updated.

> A new file (bdver3.md) is also attached which describes the pipelines.

Please note recent addition - sseadd1, similar to sseadd. You should
handle this and other _1 types in a similar way. _1 types only mark
instructions that do not have operand2, but are otherwise the same as
instructions without prefix.


> 2012-10-11  Ganesh Gopalasubramanian  <Ganesh.Gopalasubramanian@amd.com>
>
>         bdver3 Enablement
>         * gcc/doc/extend.texi: Add details about bdver3.
>         * gcc/doc/invoke.texi: Add details about bdver3.
>         * config.gcc (i[34567]86-*-linux* | ...): Add bdver3.
>         (case ${target}): Add bdver3.
>         * config/i386/i386.h (TARGET_BDVER3): New definition.
>         * config/i386/i386.md (define_attr "cpu"): Add bdver3.
>         * config/i386/cpuid.h (bit_XSAVEOPT): New field for
>         getting the xsaveopt cpuid flag.

Just say "New." here.

>         * config/i386/sse.md (sseshuf): New instruction
>         attribute added for identifying the shuffle instructions.

This is actually "New type attribute."

>         * config/i386/i386.opt (flag_dispatch_scheduler): Add bdver3.
>         * config/i386/i386-c.c (ix86_target_macros_internal): Add
>         bdver3 def_and_undef
>         * config/i386/driver-i386.c (host_detect_local_cpu): Let
>         -march=native recognize bdver3 processors.

"Recognize bdver3 processors."

>         * config/i386/i386.c (struct processor_costs btver2_cost): New
>         bdver3 cost table.

"New."

>         (m_BDVER3): New definition.
>         (m_AMD_MULTIPLE): Includes m_BDVER3.
>         (initial_ix86_tune_features): Add bdver3 tune.
>         (processor_target_table): Add bdver3 entry.
>         (static const char *const cpu_names): Add bdver3 entry.
>         (software_prefetching_beneficial_p): Add bdver3.
>         (ix86_option_override_internal): Add bdver3 instruction sets.
>         (ix86_issue_rate): Add bdver3.
>         (ix86_adjust_cost): Add bdver3.
>         (enum target_cpu_default): Add TARGET_CPU_DEFAULT_bdver3.
>         (enum processor_type): Add PROCESSOR_BDVER3.
>         * config/i386/bdver3.md: New file describing bdver3 pipelines.

The patch looks OK, but please repost due to suggested attribute changes.

Thanks,
Uros.

Patch

Index: gcc/doc/extend.texi
===================================================================
--- gcc/doc/extend.texi	(revision 192031)
+++ gcc/doc/extend.texi	(working copy)
@@ -9589,6 +9589,9 @@ 
 @item bdver2
 AMD family 15h Bulldozer version 2.
 
+@item bdver3
+AMD family 15h Bulldozer version 3.
+
 @item btver2
 AMD family 16h CPU.
 @end table
Index: gcc/doc/invoke.texi
===================================================================
--- gcc/doc/invoke.texi	(revision 192031)
+++ gcc/doc/invoke.texi	(working copy)
@@ -13445,6 +13445,11 @@ 
 supersets BMI, TBM, F16C, FMA, AVX, XOP, LWP, AES, PCL_MUL, CX16, MMX, SSE,
 SSE2, SSE3, SSE4A, SSSE3, SSE4.1, SSE4.2, ABM and 64-bit instruction set 
 extensions.)
+@item bdver3
+AMD Family 15h core based CPUs with x86-64 instruction set support.  (This
+supersets BMI, TBM, F16C, FMA, AVX, XOP, LWP, AES, PCL_MUL, CX16, MMX, SSE,
+SSE2, SSE3, SSE4A, SSSE3, SSE4.1, SSE4.2, ABM and 64-bit instruction set 
+extensions.)
 
 @item btver1
 CPUs based on AMD Family 14h cores with x86-64 instruction set support.  (This
Index: gcc/config.gcc
===================================================================
--- gcc/config.gcc	(revision 192031)
+++ gcc/config.gcc	(working copy)
@@ -1231,7 +1231,7 @@ 
 			TM_MULTILIB_CONFIG=`echo $TM_MULTILIB_CONFIG | sed 's/^,//'`
 			need_64bit_isa=yes
 			case X"${with_cpu}" in
-			Xgeneric|Xatom|Xcore2|Xcorei7|Xcorei7-avx|Xnocona|Xx86-64|Xbdver2|Xbdver1|Xbtver2|Xbtver1|Xamdfam10|Xbarcelona|Xk8|Xopteron|Xathlon64|Xathlon-fx|Xathlon64-sse3|Xk8-sse3|Xopteron-sse3)
+			Xgeneric|Xatom|Xcore2|Xcorei7|Xcorei7-avx|Xnocona|Xx86-64|Xbdver3|Xbdver2|Xbdver1|Xbtver2|Xbtver1|Xamdfam10|Xbarcelona|Xk8|Xopteron|Xathlon64|Xathlon-fx|Xathlon64-sse3|Xk8-sse3|Xopteron-sse3)
 				;;
 			X)
 				if test x$with_cpu_64 = x; then
@@ -1240,7 +1240,7 @@ 
 				;;
 			*)
 				echo "Unsupported CPU used in --with-cpu=$with_cpu, supported values:" 1>&2
-				echo "generic atom core2 corei7 corei7-avx nocona x86-64 bdver2 bdver1 btver2 btver1 amdfam10 barcelona k8 opteron athlon64 athlon-fx athlon64-sse3 k8-sse3 opteron-sse3" 1>&2
+				echo "generic atom core2 corei7 corei7-avx nocona x86-64 bdver3 bdver2 bdver1 btver2 btver1 amdfam10 barcelona k8 opteron athlon64 athlon-fx athlon64-sse3 k8-sse3 opteron-sse3" 1>&2
 				exit 1
 				;;
 			esac
@@ -1352,7 +1352,7 @@ 
 		tmake_file="$tmake_file i386/t-sol2-64"
 		need_64bit_isa=yes
 		case X"${with_cpu}" in
-		Xgeneric|Xatom|Xcore2|Xcorei7|Xcorei7-avx|Xnocona|Xx86-64|Xbdver2|Xbdver1|Xbtver2|Xbtver1|Xamdfam10|Xbarcelona|Xk8|Xopteron|Xathlon64|Xathlon-fx|Xathlon64-sse3|Xk8-sse3|Xopteron-sse3)
+		Xgeneric|Xatom|Xcore2|Xcorei7|Xcorei7-avx|Xnocona|Xx86-64|Xbdver3|Xbdver2|Xbdver1|Xbtver2|Xbtver1|Xamdfam10|Xbarcelona|Xk8|Xopteron|Xathlon64|Xathlon-fx|Xathlon64-sse3|Xk8-sse3|Xopteron-sse3)
 			;;
 		X)
 			if test x$with_cpu_64 = x; then
@@ -1361,7 +1361,7 @@ 
 			;;
 		*)
 			echo "Unsupported CPU used in --with-cpu=$with_cpu, supported values:" 1>&2
-			echo "generic atom core2 corei7 corei7-avx nocona x86-64 bdver2 bdver1 btver2 btver1 amdfam10 barcelona k8 opteron athlon64 athlon-fx athlon64-sse3 k8-sse3 opteron-sse3" 1>&2
+			echo "generic atom core2 corei7 corei7-avx nocona x86-64 bdver3 bdver2 bdver1 btver2 btver1 amdfam10 barcelona k8 opteron athlon64 athlon-fx athlon64-sse3 k8-sse3 opteron-sse3" 1>&2
 			exit 1
 			;;
 		esac
@@ -1418,7 +1418,7 @@ 
 			if test x$enable_targets = xall; then
 				tm_defines="${tm_defines} TARGET_BI_ARCH=1"
 				case X"${with_cpu}" in
-				Xgeneric|Xatom|Xcore2|Xcorei7|Xcorei7-avx|Xnocona|Xx86-64|Xbdver2|Xbdver1|Xbtver2|Xbtver1|Xamdfam10|Xbarcelona|Xk8|Xopteron|Xathlon64|Xathlon-fx|Xathlon64-sse3|Xk8-sse3|Xopteron-sse3)
+				Xgeneric|Xatom|Xcore2|Xcorei7|Xcorei7-avx|Xnocona|Xx86-64|Xbdver3|Xbdver2|Xbdver1|Xbtver2|Xbtver1|Xamdfam10|Xbarcelona|Xk8|Xopteron|Xathlon64|Xathlon-fx|Xathlon64-sse3|Xk8-sse3|Xopteron-sse3)
 					;;
 				X)
 					if test x$with_cpu_64 = x; then
@@ -1427,7 +1427,7 @@ 
 					;;
 				*)
 					echo "Unsupported CPU used in --with-cpu=$with_cpu, supported values:" 1>&2
-					echo "generic atom core2 corei7 Xcorei7-avx nocona x86-64 bdver2 bdver1 btver2 btver1 amdfam10 barcelona k8 opteron athlon64 athlon-fx athlon64-sse3 k8-sse3 opteron-sse3" 1>&2
+					echo "generic atom core2 corei7 Xcorei7-avx nocona x86-64 bdver3 bdver2 bdver1 btver2 btver1 amdfam10 barcelona k8 opteron athlon64 athlon-fx athlon64-sse3 k8-sse3 opteron-sse3" 1>&2
 					exit 1
 					;;
 				esac
@@ -2660,6 +2660,10 @@ 
     ;;
   i686-*-* | i786-*-*)
     case ${target_noncanonical} in
+      bdver3-*)
+        arch=bdver3
+        cpu=bdver3
+        ;;
       bdver2-*)
         arch=bdver2
         cpu=bdver2
@@ -2761,6 +2765,10 @@ 
     ;;
   x86_64-*-*)
     case ${target_noncanonical} in
+      bdver3-*)
+        arch=bdver3
+        cpu=bdver3
+        ;;
       bdver2-*)
         arch=bdver2
         cpu=bdver2
@@ -3211,8 +3219,8 @@ 
 				;;
 			"" | x86-64 | generic | native \
 			| k8 | k8-sse3 | athlon64 | athlon64-sse3 | opteron \
-			| opteron-sse3 | athlon-fx | bdver2 | bdver1 | btver2 | btver1 \
-			| amdfam10 | barcelona | nocona | core2 | corei7 \
+			| opteron-sse3 | athlon-fx | bdver3 | bdver2 | bdver1 | btver2 \
+			| btver1 | amdfam10 | barcelona | nocona | core2 | corei7 \
 			| corei7-avx | core-avx-i | core-avx2 | atom)
 				# OK
 				;;
Index: gcc/config/i386/i386.h
===================================================================
--- gcc/config/i386/i386.h	(revision 192031)
+++ gcc/config/i386/i386.h	(working copy)
@@ -251,6 +251,7 @@ 
 #define TARGET_AMDFAM10 (ix86_tune == PROCESSOR_AMDFAM10)
 #define TARGET_BDVER1 (ix86_tune == PROCESSOR_BDVER1)
 #define TARGET_BDVER2 (ix86_tune == PROCESSOR_BDVER2)
+#define TARGET_BDVER3 (ix86_tune == PROCESSOR_BDVER3)
 #define TARGET_BTVER1 (ix86_tune == PROCESSOR_BTVER1)
 #define TARGET_BTVER2 (ix86_tune == PROCESSOR_BTVER2)
 #define TARGET_ATOM (ix86_tune == PROCESSOR_ATOM)
@@ -610,6 +611,7 @@ 
   TARGET_CPU_DEFAULT_amdfam10,
   TARGET_CPU_DEFAULT_bdver1,
   TARGET_CPU_DEFAULT_bdver2,
+  TARGET_CPU_DEFAULT_bdver3,
   TARGET_CPU_DEFAULT_btver1,
   TARGET_CPU_DEFAULT_btver2,
 
@@ -2092,6 +2094,7 @@ 
   PROCESSOR_AMDFAM10,
   PROCESSOR_BDVER1,
   PROCESSOR_BDVER2,
+  PROCESSOR_BDVER3,
   PROCESSOR_BTVER1,
   PROCESSOR_BTVER2,
   PROCESSOR_ATOM,
Index: gcc/config/i386/i386.md
===================================================================
--- gcc/config/i386/i386.md	(revision 192031)
+++ gcc/config/i386/i386.md	(working copy)
@@ -313,7 +313,7 @@ 
 
 ;; Processor type.
 (define_attr "cpu" "none,pentium,pentiumpro,geode,k6,athlon,k8,core2,corei7,
-		    atom,generic64,amdfam10,bdver1,bdver2,btver1,btver2"
+		    atom,generic64,amdfam10,bdver1,bdver2,bdver3,btver1,btver2"
   (const (symbol_ref "ix86_schedule")))
 
 ;; A basic instruction type.  Refinements due to arguments to be
@@ -326,7 +326,7 @@ 
    push,pop,call,callv,leave,
    str,bitmanip,
    fmov,fop,fsgn,fmul,fdiv,fpspc,fcmov,fcmp,fxch,fistp,fisttp,frndint,
-   sselog,sselog1,sseiadd,sseiadd1,sseishft,sseishft1,sseimul,
+   sselog,sselog1,sseiadd,sseiadd1,sseishft,sseishft1,sseimul,sseshuf,
    sse,ssemov,sseadd,ssemul,ssecmp,ssecomi,ssecvt,ssecvt1,sseicvt,ssediv,sseins,
    ssemuladd,sse4arg,lwp,
    mmx,mmxmov,mmxadd,mmxmul,mmxcmp,mmxcvt,mmxshft"
@@ -937,6 +937,7 @@ 
 (include "k6.md")
 (include "athlon.md")
 (include "bdver1.md")
+(include "bdver3.md")
 (include "geode.md")
 (include "atom.md")
 (include "core2.md")
Index: gcc/config/i386/cpuid.h
===================================================================
--- gcc/config/i386/cpuid.h	(revision 192031)
+++ gcc/config/i386/cpuid.h	(working copy)
@@ -75,6 +75,9 @@ 
 #define bit_RDSEED	(1 << 18)
 #define bit_ADX	(1 << 19)
 
+/* Extended Features with cpuid function 0xd */
+#define bit_XSAVEOPT	(1 << 0)
+
 /* Signatures for different CPU implementations as returned in uses
    of cpuid with level 0.  */
 #define signature_AMD_ebx	0x68747541
Index: gcc/config/i386/sse.md
===================================================================
--- gcc/config/i386/sse.md	(revision 192031)
+++ gcc/config/i386/sse.md	(working copy)
@@ -3711,7 +3711,10 @@ 
 
   return "vshufps\t{%3, %2, %1, %0|%0, %1, %2, %3}";
 }
-  [(set_attr "type" "sselog")
+  [(set (attr "type")
+     (if_then_else (eq_attr "cpu" "bdver3")
+        (const_string "sseshuf")
+        (const_string "sselog")))
    (set_attr "length_immediate" "1")
    (set_attr "prefix" "vex")
    (set_attr "mode" "V8SF")])
@@ -3762,7 +3765,10 @@ 
     }
 }
   [(set_attr "isa" "noavx,avx")
-   (set_attr "type" "sselog")
+   (set (attr "type")
+     (if_then_else (eq_attr "cpu" "bdver3")
+        (const_string "sseshuf")
+        (const_string "sselog")))
    (set_attr "length_immediate" "1")
    (set_attr "prefix" "orig,vex")
    (set_attr "mode" "V4SF")])
@@ -3869,7 +3875,27 @@ 
    vmovlps\t{%2, %1, %0|%0, %1, %2}
    %vmovlps\t{%2, %0|%0, %2}"
   [(set_attr "isa" "noavx,avx,noavx,avx,*")
-   (set_attr "type" "sselog,sselog,ssemov,ssemov,ssemov")
+   (set (attr "type")
+        (cond [(and (eq_attr "cpu" "bdver3")
+                 (eq_attr "alternative" "0"))
+                 (const_string "sseshuf")
+               (and (eq_attr "cpu" "bdver3")
+                 (eq_attr "alternative" "1"))
+                 (const_string "sseshuf")
+                 (eq_attr "alternative" "2")
+                 (const_string "ssemov")
+                 (eq_attr "alternative" "3")
+                 (const_string "ssemov")
+                 (eq_attr "alternative" "4")
+                 (const_string "ssemov")
+              (and (not (eq_attr "cpu" "bdver3"))
+                 (eq_attr "alternative" "0"))
+                 (const_string "sselog")
+              (and (not (eq_attr "cpu" "bdver3"))
+                 (eq_attr "alternative" "1"))
+                 (const_string "sselog")
+               ]
+               (const_string "*" )))
    (set_attr "length_immediate" "1,1,*,*,*")
    (set_attr "prefix" "orig,vex,orig,vex,maybe_vex")
    (set_attr "mode" "V4SF,V4SF,V2SF,V2SF,V2SF")])
@@ -3923,7 +3949,23 @@ 
    vbroadcastss\t{%1, %0|%0, %1}
    shufps\t{$0, %0, %0|%0, %0, 0}"
   [(set_attr "isa" "avx,avx,noavx")
-   (set_attr "type" "sselog1,ssemov,sselog1")
+   (set (attr "type")
+        (cond [(and (eq_attr "cpu" "bdver3")
+                 (eq_attr "alternative" "0"))
+                 (const_string "sseshuf")
+                (and (eq_attr "cpu" "bdver3")
+                 (eq_attr "alternative" "2"))
+                 (const_string "sseshuf")
+                (eq_attr "alternative" "1")
+                 (const_string "ssemov")
+               (and (not (eq_attr "cpu" "bdver3"))
+                 (eq_attr "alternative" "0"))
+                 (const_string "sselog1")
+               (and (not (eq_attr "cpu" "bdver3"))
+                 (eq_attr "alternative" "2"))
+                 (const_string "sselog1")
+               ]
+               (const_string "*" )))
    (set_attr "length_immediate" "1,0,1")
    (set_attr "prefix_extra" "0,1,*")
    (set_attr "prefix" "vex,vex,orig")
@@ -4653,7 +4695,10 @@ 
 
   return "vshufpd\t{%3, %2, %1, %0|%0, %1, %2, %3}";
 }
-  [(set_attr "type" "sselog")
+  [(set (attr "type")
+     (if_then_else (eq_attr "cpu" "bdver3")
+        (const_string "sseshuf")
+        (const_string "sselog")))
    (set_attr "length_immediate" "1")
    (set_attr "prefix" "vex")
    (set_attr "mode" "V4DF")])
@@ -4767,7 +4812,10 @@ 
     }
 }
   [(set_attr "isa" "noavx,avx")
-   (set_attr "type" "sselog")
+   (set (attr "type")
+     (if_then_else (eq_attr "cpu" "bdver3")
+        (const_string "sseshuf")
+        (const_string "sselog")))
    (set_attr "length_immediate" "1")
    (set_attr "prefix" "orig,vex")
    (set_attr "mode" "V2DF")])
Index: gcc/config/i386/i386.opt
===================================================================
--- gcc/config/i386/i386.opt	(revision 192031)
+++ gcc/config/i386/i386.opt	(working copy)
@@ -419,7 +419,7 @@ 
 
 mdispatch-scheduler
 Target RejectNegative Var(flag_dispatch_scheduler)
-Do dispatch scheduling if processor is bdver1 or bdver2 and Haifa scheduling
+Do dispatch scheduling if processor is bdver1 or bdver2 or bdver3 and Haifa scheduling
 is selected.
 
 mprefer-avx128
Index: gcc/config/i386/i386-c.c
===================================================================
--- gcc/config/i386/i386-c.c	(revision 192031)
+++ gcc/config/i386/i386-c.c	(working copy)
@@ -114,6 +114,10 @@ 
       def_or_undef (parse_in, "__bdver2");
       def_or_undef (parse_in, "__bdver2__");
       break;
+    case PROCESSOR_BDVER3:
+      def_or_undef (parse_in, "__bdver3");
+      def_or_undef (parse_in, "__bdver3__");
+      break;
     case PROCESSOR_BTVER1:
       def_or_undef (parse_in, "__btver1");
       def_or_undef (parse_in, "__btver1__");
@@ -209,7 +213,10 @@ 
     case PROCESSOR_BDVER2:
       def_or_undef (parse_in, "__tune_bdver2__");
       break;
-   case PROCESSOR_BTVER1:
+    case PROCESSOR_BDVER3:
+      def_or_undef (parse_in, "__tune_bdver3__");
+      break;
+    case PROCESSOR_BTVER1:
       def_or_undef (parse_in, "__tune_btver1__");
       break;
     case PROCESSOR_BTVER2:
Index: gcc/config/i386/driver-i386.c
===================================================================
--- gcc/config/i386/driver-i386.c	(revision 192031)
+++ gcc/config/i386/driver-i386.c	(working copy)
@@ -391,6 +391,7 @@ 
   unsigned int has_rdrnd = 0, has_f16c = 0, has_fsgsbase = 0;
   unsigned int has_rdseed = 0, has_prfchw = 0, has_adx = 0;
   unsigned int has_osxsave = 0;
+  unsigned int has_xsaveopt = 0;
 
   bool arch;
 
@@ -460,6 +461,12 @@ 
       has_fsgsbase = ebx & bit_FSGSBASE;
       has_rdseed = ebx & bit_RDSEED;
       has_adx = ebx & bit_ADX;
+
+      /* call the extended function dh with ecx=1
+         to get the cpuid flag value of xsaveopt */
+      __cpuid_count (0xd, 1, eax, ebx, ecx,edx);
+
+      has_xsaveopt = eax & bit_XSAVEOPT ;
     }
 
   /* Get XCR_XFEATURE_ENABLED_MASK register with xgetbv.  */
@@ -530,6 +537,8 @@ 
 	processor = PROCESSOR_GEODE;
       else if (has_movbe)
 	processor = PROCESSOR_BTVER2;
+      else if (has_xsaveopt)
+        processor = PROCESSOR_BDVER3;
       else if (has_bmi)
         processor = PROCESSOR_BDVER2;
       else if (has_xop)
@@ -700,6 +709,9 @@ 
     case PROCESSOR_BDVER2:
       cpu = "bdver2";
       break;
+    case PROCESSOR_BDVER3:
+      cpu = "bdver3";
+      break;
     case PROCESSOR_BTVER1:
       cpu = "btver1";
       break;
Index: gcc/config/i386/i386.c
===================================================================
--- gcc/config/i386/i386.c	(revision 192031)
+++ gcc/config/i386/i386.c	(working copy)
@@ -1427,6 +1427,85 @@ 
   1,					/* cond_not_taken_branch_cost.  */
 };
 
+struct processor_costs bdver3_cost = {
+  COSTS_N_INSNS (1),			/* cost of an add instruction */
+  COSTS_N_INSNS (1),			/* cost of a lea instruction */
+  COSTS_N_INSNS (1),			/* variable shift costs */
+  COSTS_N_INSNS (1),			/* constant shift costs */
+  {COSTS_N_INSNS (4),			/* cost of starting multiply for QI */
+   COSTS_N_INSNS (4),			/*				 HI */
+   COSTS_N_INSNS (4),			/*				 SI */
+   COSTS_N_INSNS (6),			/*				 DI */
+   COSTS_N_INSNS (6)},			/*			      other */
+  0,					/* cost of multiply per each bit set */
+  {COSTS_N_INSNS (19),			/* cost of a divide/mod for QI */
+   COSTS_N_INSNS (35),			/*			    HI */
+   COSTS_N_INSNS (51),			/*			    SI */
+   COSTS_N_INSNS (83),			/*			    DI */
+   COSTS_N_INSNS (83)},			/*			    other */
+  COSTS_N_INSNS (1),			/* cost of movsx */
+  COSTS_N_INSNS (1),			/* cost of movzx */
+  8,					/* "large" insn */
+  9,					/* MOVE_RATIO */
+  4,				     /* cost for loading QImode using movzbl */
+  {5, 5, 4},				/* cost of loading integer registers
+					   in QImode, HImode and SImode.
+					   Relative to reg-reg move (2).  */
+  {4, 4, 4},				/* cost of storing integer registers */
+  2,					/* cost of reg,reg fld/fst */
+  {5, 5, 12},				/* cost of loading fp registers
+		   			   in SFmode, DFmode and XFmode */
+  {4, 4, 8},				/* cost of storing fp registers
+ 		   			   in SFmode, DFmode and XFmode */
+  2,					/* cost of moving MMX register */
+  {4, 4},				/* cost of loading MMX registers
+					   in SImode and DImode */
+  {4, 4},				/* cost of storing MMX registers
+					   in SImode and DImode */
+  2,					/* cost of moving SSE register */
+  {4, 4, 4},				/* cost of loading SSE registers
+					   in SImode, DImode and TImode */
+  {4, 4, 4},				/* cost of storing SSE registers
+					   in SImode, DImode and TImode */
+  2,					/* MMX or SSE register to integer */
+  16,					/* size of l1 cache.  */
+  2048,					/* size of l2 cache.  */
+  64,					/* size of prefetch block */
+  /* New AMD processors never drop prefetches; if they cannot be performed
+     immediately, they are queued.  We set number of simultaneous prefetches
+     to a large constant to reflect this (it probably is not a good idea not
+     to limit number of prefetches at all, as their execution also takes some
+     time).  */
+  100,					/* number of parallel prefetches */
+  2,					/* Branch cost */
+  COSTS_N_INSNS (6),			/* cost of FADD and FSUB insns.  */
+  COSTS_N_INSNS (6),			/* cost of FMUL instruction.  */
+  COSTS_N_INSNS (42),			/* cost of FDIV instruction.  */
+  COSTS_N_INSNS (2),			/* cost of FABS instruction.  */
+  COSTS_N_INSNS (2),			/* cost of FCHS instruction.  */
+  COSTS_N_INSNS (52),			/* cost of FSQRT instruction.  */
+
+  /*  BDVER3 has optimized REP instruction for medium sized blocks, but for
+      very small blocks it is better to use loop. For large blocks, libcall
+      can do nontemporary accesses and beat inline considerably.  */
+  {{libcall, {{6, loop}, {14, unrolled_loop}, {-1, rep_prefix_4_byte}}},
+   {libcall, {{16, loop}, {8192, rep_prefix_8_byte}, {-1, libcall}}}},
+  {{libcall, {{8, loop}, {24, unrolled_loop},
+	      {2048, rep_prefix_4_byte}, {-1, libcall}}},
+   {libcall, {{48, unrolled_loop}, {8192, rep_prefix_8_byte}, {-1, libcall}}}},
+  6,					/* scalar_stmt_cost.  */
+  4,					/* scalar load_cost.  */
+  4,					/* scalar_store_cost.  */
+  6,					/* vec_stmt_cost.  */
+  0,					/* vec_to_scalar_cost.  */
+  2,					/* scalar_to_vec_cost.  */
+  4,					/* vec_align_load_cost.  */
+  4,					/* vec_unalign_load_cost.  */
+  4,					/* vec_store_cost.  */
+  2,					/* cond_taken_branch_cost.  */
+  1,					/* cond_not_taken_branch_cost.  */
+};
+
 struct processor_costs btver1_cost = {
   COSTS_N_INSNS (1),			/* cost of an add instruction */
   COSTS_N_INSNS (2),			/* cost of a lea instruction */
@@ -1987,7 +2066,8 @@ 
 #define m_AMDFAM10 (1<<PROCESSOR_AMDFAM10)
 #define m_BDVER1 (1<<PROCESSOR_BDVER1)
 #define m_BDVER2 (1<<PROCESSOR_BDVER2)
-#define m_BDVER	(m_BDVER1 | m_BDVER2)
+#define m_BDVER3 (1<<PROCESSOR_BDVER3)
+#define m_BDVER	(m_BDVER1 | m_BDVER2 | m_BDVER3)
 #define m_BTVER (m_BTVER1 | m_BTVER2)
 #define m_BTVER1 (1<<PROCESSOR_BTVER1)
 #define m_BTVER2 (1<<PROCESSOR_BTVER2)
@@ -2686,6 +2766,7 @@ 
   {&amdfam10_cost, 32, 24, 32, 7, 32},
   {&bdver1_cost, 32, 24, 32, 7, 32},
   {&bdver2_cost, 32, 24, 32, 7, 32},
+  {&bdver3_cost, 32, 24, 32, 7, 32},
   {&btver1_cost, 32, 24, 32, 7, 32},
   {&btver2_cost, 32, 24, 32, 7, 32},
   {&atom_cost, 16, 15, 16, 7, 16}
@@ -2718,6 +2799,7 @@ 
   "amdfam10",
   "bdver1",
   "bdver2",
+  "bdver3",
   "btver1",
   "btver2"
 };
@@ -3167,6 +3249,12 @@ 
 	| PTA_SSE4_2 | PTA_AES | PTA_PCLMUL | PTA_AVX | PTA_FMA4
 	| PTA_XOP | PTA_LWP | PTA_BMI | PTA_TBM | PTA_F16C
 	| PTA_FMA | PTA_PRFCHW},
+      {"bdver3", PROCESSOR_BDVER3, CPU_BDVER3,
+	PTA_64BIT | PTA_MMX | PTA_SSE | PTA_SSE2 | PTA_SSE3
+	| PTA_SSE4A | PTA_CX16 | PTA_ABM | PTA_SSSE3 | PTA_SSE4_1
+	| PTA_SSE4_2 | PTA_AES | PTA_PCLMUL | PTA_AVX
+	| PTA_XOP | PTA_LWP | PTA_BMI | PTA_TBM | PTA_F16C
+	| PTA_FMA | PTA_PRFCHW},
       {"btver1", PROCESSOR_BTVER1, CPU_GENERIC64,
 	PTA_64BIT | PTA_MMX |  PTA_SSE  | PTA_SSE2 | PTA_SSE3
 	| PTA_SSSE3 | PTA_SSE4A |PTA_ABM | PTA_CX16 | PTA_PRFCHW},
@@ -24026,6 +24114,7 @@ 
     case PROCESSOR_GENERIC64:
     case PROCESSOR_BDVER1:
     case PROCESSOR_BDVER2:
+    case PROCESSOR_BDVER3:
     case PROCESSOR_BTVER1:
       return 3;
 
@@ -24215,6 +24304,7 @@ 
     case PROCESSOR_AMDFAM10:
     case PROCESSOR_BDVER1:
     case PROCESSOR_BDVER2:
+    case PROCESSOR_BDVER3:
     case PROCESSOR_BTVER1:
     case PROCESSOR_BTVER2:
     case PROCESSOR_ATOM:
@@ -28299,7 +28389,8 @@ 
     M_AMDFAM10H_SHANGHAI,
     M_AMDFAM10H_ISTANBUL,
     M_AMDFAM15H_BDVER1,
-    M_AMDFAM15H_BDVER2
+    M_AMDFAM15H_BDVER2,
+    M_AMDFAM15H_BDVER3
   };
 
   static struct _arch_names_table
@@ -28324,6 +28415,7 @@ 
       {"amdfam15h", M_AMDFAM15H},
       {"bdver1", M_AMDFAM15H_BDVER1},
       {"bdver2", M_AMDFAM15H_BDVER2},
+      {"bdver3", M_AMDFAM15H_BDVER3},
     };
 
   static struct _isa_names_table
@@ -40460,7 +40552,7 @@ 
 static bool
 has_dispatch (rtx insn, int action)
 {
-  if ((TARGET_BDVER1 || TARGET_BDVER2)
+  if ((TARGET_BDVER1 || TARGET_BDVER2 || TARGET_BDVER3)
       && flag_dispatch_scheduler)
     switch (action)
       {