int_pow: do not goto into a branch

I'm not necessarily against every goto in general, but jumping into a
branch is definitely a bad idea.  Better refactor.

1 files changed, 9 insertions, 7 deletions

diff --git a/numeric.c b/numeric.c
index 8843be9e58..52d7a74344 100644
--- a/numeric.c
+++ b/numeric.c
@@ -3978,13 +3978,7 @@ int_pow(long x, unsigned long y)
     do {
 	while (y % 2 == 0) {
 	    if (!FIT_SQRT_LONG(x)) {
-		VALUE v;
-	      bignum:
-		v = rb_big_pow(rb_int2big(x), LONG2NUM(y));
-		if (RB_FLOAT_TYPE_P(v)) /* infinity due to overflow */
-		    return v;
-		if (z != 1) v = rb_big_mul(rb_int2big(neg ? -z : z), v);
-		return v;
+                goto bignum;
 	    }
 	    x = x * x;
 	    y >>= 1;
@@ -3998,6 +3992,14 @@ int_pow(long x, unsigned long y)
     } while (--y);
     if (neg) z = -z;
     return LONG2NUM(z);
+
+    VALUE v;
+  bignum:
+    v = rb_big_pow(rb_int2big(x), LONG2NUM(y));
+    if (RB_FLOAT_TYPE_P(v)) /* infinity due to overflow */
+        return v;
+    if (z != 1) v = rb_big_mul(rb_int2big(neg ? -z : z), v);
+    return v;
 }
 
 VALUE