* config.gcc: Reorganize --with-cpu logic. Set

[pf3gnuchains/gcc-fork.git] / gcc / config / arm / arm.h

diff --git a/gcc/config/arm/arm.h b/gcc/config/arm/arm.h
index cf6b91f..a6f0b90 100644 (file)
--- a/gcc/config/arm/arm.h
+++ b/gcc/config/arm/arm.h
@@ -525,6 +525,20 @@ Unrecognized value in TARGET_CPU_DEFAULT.
    N_("Specify the register to be used for PIC addressing"), 0}        \
 }
 
+/* Support for a compile-time default CPU, et cetera.  The rules are:
+   --with-arch is ignored if -march or -mcpu are specified.
+   --with-cpu is ignored if -march or -mcpu are specified, and is overridden
+    by --with-arch.
+   --with-tune is ignored if -mtune or -mcpu are specified (but not affected
+     by -march).
+   --with-float is ignored if -mhard-float or -msoft-float are
+    specified.  */
+#define OPTION_DEFAULT_SPECS \
+  {"arch", "%{!march=*:%{!mcpu=*:-march=%(VALUE)}}" }, \
+  {"cpu", "%{!march=*:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
+  {"tune", "%{!mcpu=*:%{!mtune=*:-mtune=%(VALUE)}}" }, \
+  {"float", "%{!msoft-float:%{!mhard-float:-m%(VALUE)-float}}" }
+
 struct arm_cpu_select
 {
   const char *              string;