x86_64 bound checking failure

The code:
void mul(double *p)
{
    *p *= 2.0;
}

failed on x86_64 because register was not loaded after
bound checking call.
Also printed size when pointer indir failes.

lib/bcheck.c

@@ -588,8 +588,9 @@ void * __bound_ptr_indir ## dsize (void *p, size_t offset)                     \
         if (addr <= tree->size) {                                              \
             if (tree->is_invalid || addr + offset + dsize > tree->size) {      \
                 POST_SEM ();                                                   \
-                bound_warning("%p is outside of the region (0x%lx..0x%lx)",    \
+                bound_warning("%p (size %d) is outside of the region "         \
-                              p + offset, (long)tree->start,                   \
+                              "(0x%lx..0x%lx)",                                \
+                              p + offset, dsize, (long)tree->start,            \
                               (long)(tree->start + tree->size - 1));           \
                 if (never_fatal <= 0)                                          \
                     return INVALID_POINTER; /* return an invalid pointer */    \

tests/tests2/126_bound_global.expect

@@ -1,2 +1,2 @@
-126_bound_global.c:11: at main: BCHECK: ........ is outside of the region (..................)
+126_bound_global.c:11: at main: BCHECK: ........ (size 4) is outside of the region (..................)
 126_bound_global.c:11: at main: RUNTIME ERROR: invalid memory access

tests/tests2/132_bound_test.c

@@ -21,9 +21,17 @@ double scale(double d)
     return x.d;
 }
 
+void mul(double *p)
+{
+    *p *= 2.0;
+}
+
 int
 main(void)
 {
+    double d = 4.0;
     printf("%g\n", scale(42));
+    mul(&d);
+    printf("%g\n", d);
     return 0;
 }

tests/tests2/132_bound_test.expect

@@ -1 +1,2 @@
 42000
+8

x86_64-gen.c

@@ -120,6 +120,7 @@ ST_FUNC void gen_struct_copy(int size);
 
 ST_DATA const char * const target_machine_defs =
     "__x86_64__\0"
+    "__x86_64\0"
     "__amd64__\0"
     ;
 
@@ -2020,6 +2021,7 @@ void gen_opf(int op)
                 gv(RC_FLOAT);
                 vswap();
                 fc = vtop->c.i; /* bcheck may have saved previous vtop[-1] */
+                r = vtop->r;
             }
             
             if ((ft & VT_BTYPE) == VT_DOUBLE) {