* invoke.texi (generic): Document

	(i686) Update.
	* config.gcc: Make x86_64-* and i686-* default to generic tunning.
	* i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
	TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
	(x86_use_incdec, x86_pad_returns): New variables
	(TARGET_CPU_DEFAULT_generic): New constant
	(TARGET_CPU_DEFAULT_NAMES): Add generic.
	(enum processor_type): Add generic32 and generic64.
	* i386.md (cpu attribute): Add generic32/generic64
	(movhi splitter): Behave sanely when both partial_reg_dependency and
	partial_reg_stall are set.
	(K8 splitters): Enable for generic as well.
	* predicates.md (incdec_operand): Use TARGET_INCDEC
	(aligned_operand): Avoid memory mismatch stalls.
	* athlon.md: Enable for generic64, new patterns for 128bit moves.
	* ppro.md: Enable for generic32
	* i386.c (generic64_cost, generic32_cost): New.
	(m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
	(x86_use_leave): Enable for generic64.  (x86_use_sahf,
	x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
	x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
	x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
	x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
	x86_partial_reg_dependency, x86_memory_mismatch_stall,
	x86_accumulate_outgoing_args, x86_prologue_using_move,
	x86_epilogue_using_move, x86_arch_always_fancy_math_387,
	x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
	Enable for generic.
	(x86_use_incdec, x86_pad_returns): New.
	(override_options): Add generic32 and generic64, translate "generic"
	to generic32/generic64 and "i686" to "generic32", refuse
	"generic32"/"generic64" as arch target.
	(ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
	(ix86_reorg): Honor PAD_RETURNS.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@109971 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 30 insertions, 6 deletions

diff --git a/gcc/config.gcc b/gcc/config.gcc
index 076e71541f4..252f10c80ad 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -2366,6 +2366,9 @@ if test x$with_cpu = x ; then
       # A Cirrus ARM variant.
       with_cpu="ep9312"
       ;;
+    i386-*-*)
+      with_cpu=i386
+      ;;
     i486-*-*)
       with_cpu=i486
       ;;
@@ -2417,13 +2420,26 @@ if test x$with_cpu = x ; then
         pentium_m-*)
           with_cpu=pentium-m
           ;;
-        *)
+        pentiumpro-*)
           with_cpu=pentiumpro
           ;;
+        *)
+          with_cpu=generic
+          ;;
       esac
       ;;
     x86_64-*-*)
-      with_cpu=k8
+      case ${target_noncanonical} in
+        k8-*|opteron-*|athlon_64-*)
+          with_cpu=k8
+          ;;
+        nocona-*)
+          with_cpu=nocona
+          ;;
+        *)
+          with_cpu=generic
+          ;;
+      esac
       ;;
     alphaev6[78]*-*-*)
       with_cpu=ev67
@@ -2629,13 +2645,21 @@ case "${target}" in
 		for which in arch cpu tune; do
 			eval "val=\$with_$which"
 			case ${val} in
-			"" | i386 | i486 \
+			i386 | i486 \
 			| i586 | pentium | pentium-mmx | winchip-c6 | winchip2 \
 			| c3 | c3-2 | i686 | pentiumpro | pentium2 | pentium3 \
 			| pentium4 | k6 | k6-2 | k6-3 | athlon | athlon-tbird \
-			| athlon-4 | athlon-xp | athlon-mp | k8 | opteron \
-			| athlon64 | athlon-fx | prescott | pentium-m \
-			| pentium4m | pentium3m| nocona)
+			| athlon-4 | athlon-xp | athlon-mp \
+			| prescott | pentium-m | pentium4m | pentium3m)
+				case "${target}" in
+				  x86_64-*-*)
+				      echo "CPU given in --with-$which=$val doesn't support 64bit mode." 1>&2
+				      exit 1
+				      ;;
+				esac
+				# OK
+				;;
+			"" | k8 | opteron | athlon64 | athlon-fx | nocona | generic)
 				# OK
 				;;
 			*)