arm host: fix compiler warning

Compilation for arm (native or cross) results in this
warning:

fpu/softfloat-native.c: In function ‘float64_round_to_int’:
fpu/softfloat-native.c:387: error: control reaches end of non-void function

float64_round_to_int uses special assembler code for arm
and has no explicit return value.

As there is no obvious reason why arm should need special
code, all fpu related conditionals were removed.
The remaining code is standard (C99) and compiles for arm,
too.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Acked-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

fpu/softfloat-native.c

@@ -12,8 +12,6 @@ void set_float_rounding_mode(int val STATUS_PARAM)
 #if (defined(CONFIG_BSD) && !defined(__APPLE__) && !defined(__GLIBC__)) || \
     (defined(CONFIG_SOLARIS) && CONFIG_SOLARIS_VERSION < 10)
     fpsetround(val);
-#elif defined(__arm__)
-    /* nothing to do */
 #else
     fesetround(val);
 #endif
@@ -365,25 +363,7 @@ float64 float64_trunc_to_int( float64 a STATUS_PARAM )
 
 float64 float64_round_to_int( float64 a STATUS_PARAM )
 {
-#if defined(__arm__)
-    switch(STATUS(float_rounding_mode)) {
-    default:
-    case float_round_nearest_even:
-        asm("rndd %0, %1" : "=f" (a) : "f"(a));
-        break;
-    case float_round_down:
-        asm("rnddm %0, %1" : "=f" (a) : "f"(a));
-        break;
-    case float_round_up:
-        asm("rnddp %0, %1" : "=f" (a) : "f"(a));
-        break;
-    case float_round_to_zero:
-        asm("rnddz %0, %1" : "=f" (a) : "f"(a));
-        break;
-    }
-#else
     return rint(a);
-#endif
 }
 
 float64 float64_rem( float64 a, float64 b STATUS_PARAM)

fpu/softfloat-native.h

@@ -126,13 +126,6 @@ enum {
     float_round_up           = FP_RP,
     float_round_to_zero      = FP_RZ
 };
-#elif defined(__arm__)
-enum {
-    float_round_nearest_even = 0,
-    float_round_down         = 1,
-    float_round_up           = 2,
-    float_round_to_zero      = 3
-};
 #else
 enum {
     float_round_nearest_even = FE_TONEAREST,