invoke.texi (-mcpu=power8): Document.

	* doc/invoke.texi (-mcpu=power8): Document.
	* config.in (HAVE_AS_POWER8): New.
	* config.gcc: Add cpu_type power8.
	* configure.ac: (HAVE_AS_POWER8): Check for assembler support for
	the POWER8 instructions.
	* configure: Regenerate.
	* config/rs6000/rs6000.h: (ASM_CPU_POWER8_SPEC): Define.
	(ASM_CPU_SPEC): Pass %(asm_cpu_power8) for -mcpu=power8.
	(EXTRA_SPECS): Add asm_cpu_power8 spec string.
	* config/rs6000/rs6000-cpus.def (processor_target_table): Alias
	POWER8 to POWER7.
	* config/rs6000/rs6000-tables.opt: Regenerate.
	* config/rs6000/driver-rs6000.c (ASM_CPU_SPEC): For -mcpu=power8,
	pass %(asm_cpu_power8)/-mpwr8.
	* config/rs6000/aix53.h: Likewise.
	* config/rs6000/aix61.h: Likewise.

From-SVN: r193307

12 files changed, 108 insertions, 9 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b3cc1cf..ae956a5 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,22 @@
+2012-11-07  Peter Bergner  <bergner@vnet.ibm.com>
+
+	* doc/invoke.texi (-mcpu=power8): Document.
+	* config.in (HAVE_AS_POWER8): New.
+	* config.gcc: Add cpu_type power8.
+	* configure.ac: (HAVE_AS_POWER8): Check for assembler support for
+	the POWER8 instructions.
+	* configure: Regenerate.
+	* config/rs6000/rs6000.h: (ASM_CPU_POWER8_SPEC): Define.
+	(ASM_CPU_SPEC): Pass %(asm_cpu_power8) for -mcpu=power8.
+	(EXTRA_SPECS): Add asm_cpu_power8 spec string.
+	* config/rs6000/rs6000-cpus.def (processor_target_table): Alias
+	POWER8 to POWER7.
+	* config/rs6000/rs6000-tables.opt: Regenerate.
+	* config/rs6000/driver-rs6000.c (ASM_CPU_SPEC): For -mcpu=power8,
+	pass %(asm_cpu_power8)/-mpwr8.
+	* config/rs6000/aix53.h: Likewise.
+	* config/rs6000/aix61.h: Likewise.
+
 2012-11-07  Uros Bizjak  <ubizjak@gmail.com>
 
 	PR target/55224
diff --git a/gcc/config.gcc b/gcc/config.gcc
index 0037229..b0f6f1d 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -424,7 +424,7 @@ powerpc*-*-*)
 	extra_headers="ppc-asm.h altivec.h spe.h ppu_intrinsics.h paired.h spu2vmx.h vec_types.h si2vmx.h"
 	need_64bit_hwint=yes
 	case x$with_cpu in
-	    xpowerpc64|xdefault64|x6[23]0|x970|xG5|xpower[34567]|xpower6x|xrs64a|xcell|xa2|xe500mc64|xe5500|Xe6500)
+	    xpowerpc64|xdefault64|x6[23]0|x970|xG5|xpower[345678]|xpower6x|xrs64a|xcell|xa2|xe500mc64|xe5500|Xe6500)
 		cpu_is_64bit=yes
 		;;
 	esac
@@ -3460,7 +3460,7 @@ case "${target}" in
 				eval "with_$which=405"
 				;;
 			"" | common \
-			| power | power[234567] | power6x | powerpc | powerpc64 \
+			| power | power[2345678] | power6x | powerpc | powerpc64 \
 			| rios | rios1 | rios2 | rsc | rsc1 | rs64a \
 			| 401 | 403 | 405 | 405fp | 440 | 440fp | 464 | 464fp \
 			| 476 | 476fp | 505 | 601 | 602 | 603 | 603e | ec603e \
diff --git a/gcc/config.in b/gcc/config.in
index b13805d..ee2a4d8 100644
--- a/gcc/config.in
+++ b/gcc/config.in
@@ -441,6 +441,12 @@
 #endif
 
 
+/* Define if your assembler supports POWER8 instructions. */
+#ifndef USED_FOR_TARGET
+#undef HAVE_AS_POWER8
+#endif
+
+
 /* Define if your assembler supports .ref */
 #ifndef USED_FOR_TARGET
 #undef HAVE_AS_REF
diff --git a/gcc/config/rs6000/aix53.h b/gcc/config/rs6000/aix53.h
index 7faba73..baafb51 100644
--- a/gcc/config/rs6000/aix53.h
+++ b/gcc/config/rs6000/aix53.h
@@ -62,6 +62,7 @@ do {									\
 %{mcpu=power6: -mpwr6} \
 %{mcpu=power6x: -mpwr6} \
 %{mcpu=power7: -mpwr7} \
+%{mcpu=power8: -mpwr8} \
 %{mcpu=powerpc: -mppc} \
 %{mcpu=rs64a: -mppc} \
 %{mcpu=603: -m603} \
diff --git a/gcc/config/rs6000/aix61.h b/gcc/config/rs6000/aix61.h
index 8de6fee..3fa48a8 100644
--- a/gcc/config/rs6000/aix61.h
+++ b/gcc/config/rs6000/aix61.h
@@ -62,6 +62,7 @@ do {									\
 %{mcpu=power6: -mpwr6} \
 %{mcpu=power6x: -mpwr6} \
 %{mcpu=power7: -mpwr7} \
+%{mcpu=power8: -mpwr8} \
 %{mcpu=powerpc: -mppc} \
 %{mcpu=rs64a: -mppc} \
 %{mcpu=603: -m603} \
diff --git a/gcc/config/rs6000/driver-rs6000.c b/gcc/config/rs6000/driver-rs6000.c
index 5f24ee7..1338116 100644
--- a/gcc/config/rs6000/driver-rs6000.c
+++ b/gcc/config/rs6000/driver-rs6000.c
@@ -354,6 +354,7 @@ static const struct asm_name asm_names[] = {
   { "power6",	"-mpwr6" },
   { "power6x",	"-mpwr6" },
   { "power7",	"-mpwr7" },
+  { "power8",	"-mpwr8" },
   { "powerpc",	"-mppc" },
   { "rs64a",	"-mppc" },
   { "603",	"-m603" },
@@ -379,6 +380,7 @@ static const struct asm_name asm_names[] = {
   { "power6",	"%(asm_cpu_power6) -maltivec" },
   { "power6x",	"%(asm_cpu_power6) -maltivec" },
   { "power7",	"%(asm_cpu_power7)" },
+  { "power8",	"%(asm_cpu_power8)" },
   { "powerpc",	"-mppc" },
   { "rs64a",	"-mppc64" },
   { "401",	"-mppc" },
diff --git a/gcc/config/rs6000/rs6000-cpus.def b/gcc/config/rs6000/rs6000-cpus.def
index a0aadf1..9119f30 100644
--- a/gcc/config/rs6000/rs6000-cpus.def
+++ b/gcc/config/rs6000/rs6000-cpus.def
@@ -166,6 +166,10 @@ RS6000_CPU ("power7", PROCESSOR_POWER7,   /* Don't add MASK_ISEL by default */
 	    POWERPC_7400_MASK | MASK_POWERPC64 | MASK_PPC_GPOPT | MASK_MFCRF
 	    | MASK_POPCNTB | MASK_FPRND | MASK_CMPB | MASK_DFP | MASK_POPCNTD
 	    | MASK_VSX | MASK_RECIP_PRECISION)
+RS6000_CPU ("power8", PROCESSOR_POWER7,   /* Don't add MASK_ISEL by default */
+	    POWERPC_7400_MASK | MASK_POWERPC64 | MASK_PPC_GPOPT | MASK_MFCRF
+	    | MASK_POPCNTB | MASK_FPRND | MASK_CMPB | MASK_DFP | MASK_POPCNTD
+	    | MASK_VSX | MASK_RECIP_PRECISION)
 RS6000_CPU ("powerpc", PROCESSOR_POWERPC, 0)
 RS6000_CPU ("powerpc64", PROCESSOR_POWERPC64, MASK_PPC_GFXOPT | MASK_POWERPC64)
 RS6000_CPU ("rs64", PROCESSOR_RS64A, MASK_PPC_GFXOPT | MASK_POWERPC64)
diff --git a/gcc/config/rs6000/rs6000-tables.opt b/gcc/config/rs6000/rs6000-tables.opt
index f63d9c4f..0019881 100644
--- a/gcc/config/rs6000/rs6000-tables.opt
+++ b/gcc/config/rs6000/rs6000-tables.opt
@@ -177,11 +177,14 @@ EnumValue
 Enum(rs6000_cpu_opt_value) String(power7) Value(49)
 
 EnumValue
-Enum(rs6000_cpu_opt_value) String(powerpc) Value(50)
+Enum(rs6000_cpu_opt_value) String(power8) Value(50)
 
 EnumValue
-Enum(rs6000_cpu_opt_value) String(powerpc64) Value(51)
+Enum(rs6000_cpu_opt_value) String(powerpc) Value(51)
 
 EnumValue
-Enum(rs6000_cpu_opt_value) String(rs64) Value(52)
+Enum(rs6000_cpu_opt_value) String(powerpc64) Value(52)
+
+EnumValue
+Enum(rs6000_cpu_opt_value) String(rs64) Value(53)
 
diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h
index d299e63..f7b0be2 100644
--- a/gcc/config/rs6000/rs6000.h
+++ b/gcc/config/rs6000/rs6000.h
@@ -89,6 +89,12 @@
 #define ASM_CPU_POWER7_SPEC "-mpower4 -maltivec"
 #endif
 
+#ifdef HAVE_AS_POWER8
+#define ASM_CPU_POWER8_SPEC "-mpower8"
+#else
+#define ASM_CPU_POWER8_SPEC "-mpower4 -maltivec"
+#endif
+
 #ifdef HAVE_AS_DCI
 #define ASM_CPU_476_SPEC "-m476"
 #else
@@ -112,6 +118,7 @@
 %{mcpu=power6: %(asm_cpu_power6) -maltivec} \
 %{mcpu=power6x: %(asm_cpu_power6) -maltivec} \
 %{mcpu=power7: %(asm_cpu_power7)} \
+%{mcpu=power8: %(asm_cpu_power8)} \
 %{mcpu=a2: -ma2} \
 %{mcpu=powerpc: -mppc} \
 %{mcpu=rs64a: -mppc64} \
@@ -184,6 +191,7 @@
   { "asm_cpu_power5",		ASM_CPU_POWER5_SPEC },			\
   { "asm_cpu_power6",		ASM_CPU_POWER6_SPEC },			\
   { "asm_cpu_power7",		ASM_CPU_POWER7_SPEC },			\
+  { "asm_cpu_power8",		ASM_CPU_POWER8_SPEC },			\
   { "asm_cpu_476",		ASM_CPU_476_SPEC },			\
   SUBTARGET_EXTRA_SPECS
 
diff --git a/gcc/configure b/gcc/configure
index 681aba9..55164b6 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -25213,6 +25213,48 @@ $as_echo "#define HAVE_AS_POPCNTD 1" >>confdefs.h
 fi
 
     case $target in
+      *-*-aix*) conftest_s='	.machine "pwr8"
+	.csect .text[PR]';;
+      *) conftest_s='	.machine power8
+	.text';;
+    esac
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for power8 support" >&5
+$as_echo_n "checking assembler for power8 support... " >&6; }
+if test "${gcc_cv_as_powerpc_power8+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_powerpc_power8=no
+    if test $in_tree_gas = yes; then
+    if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 19 \) \* 1000 + 2`
+  then gcc_cv_as_powerpc_power8=yes
+fi
+  elif test x$gcc_cv_as != x; then
+    $as_echo "$conftest_s" > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags -a32 -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	gcc_cv_as_powerpc_power8=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_powerpc_power8" >&5
+$as_echo "$gcc_cv_as_powerpc_power8" >&6; }
+if test $gcc_cv_as_powerpc_power8 = yes; then
+
+$as_echo "#define HAVE_AS_POWER8 1" >>confdefs.h
+
+fi
+
+    case $target in
       *-*-aix*) conftest_s='	.csect .text[PR]
 	lwsync';;
       *) conftest_s='	.text
diff --git a/gcc/configure.ac b/gcc/configure.ac
index f629d15..fbda2cc 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -3864,6 +3864,19 @@ LCF0:
 	  [Define if your assembler supports POPCNTD instructions.])])
 
     case $target in
+      *-*-aix*) conftest_s='	.machine "pwr8"
+	.csect .text[[PR]]';;
+      *) conftest_s='	.machine power8
+	.text';;
+    esac
+
+    gcc_GAS_CHECK_FEATURE([power8 support],
+      gcc_cv_as_powerpc_power8, [2,19,2], -a32,
+      [$conftest_s],,
+      [AC_DEFINE(HAVE_AS_POWER8, 1,
+	  [Define if your assembler supports POWER8 instructions.])])
+
+    case $target in
       *-*-aix*) conftest_s='	.csect .text[[PR]]
 	lwsync';;
       *) conftest_s='	.text
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 31f1633..f6d3a58 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -17101,7 +17101,7 @@ Supported values for @var{cpu_type} are @samp{401}, @samp{403},
 @samp{e300c3}, @samp{e500mc}, @samp{e500mc64}, @samp{e5500},
 @samp{e6500}, @samp{ec603e}, @samp{G3}, @samp{G4}, @samp{G5},
 @samp{titan}, @samp{power3}, @samp{power4}, @samp{power5}, @samp{power5+},
-@samp{power6}, @samp{power6x}, @samp{power7}, @samp{powerpc},
+@samp{power6}, @samp{power6x}, @samp{power7}, @samp{power8}, @samp{powerpc},
 @samp{powerpc64}, and @samp{rs64}.
 
 @option{-mcpu=powerpc}, and @option{-mcpu=powerpc64} specify pure 32-bit
@@ -17903,9 +17903,9 @@ which handle the double-precision reciprocal square root calculations.
 @opindex mrecip-precision
 Assume (do not assume) that the reciprocal estimate instructions
 provide higher-precision estimates than is mandated by the PowerPC
-ABI.  Selecting @option{-mcpu=power6} or @option{-mcpu=power7}
-automatically selects @option{-mrecip-precision}.  The double-precision 
-square root estimate instructions are not generated by
+ABI.  Selecting @option{-mcpu=power6}, @option{-mcpu=power7} or
+@option{-mcpu=power8} automatically selects @option{-mrecip-precision}.
+The double-precision square root estimate instructions are not generated by
 default on low-precision machines, since they do not provide an
 estimate that converges after three steps.