cpu.x86: enable bit-count intrinsic if POPCNT available

2010-05-15 14:00:12 -07:00 · 2010-05-15 14:00:12 -07:00 · 009408dd11
parent 5d35917061
commit 009408dd11
1 changed files with 3 additions and 2 deletions
--- a/basis/cpu/x86/x86.factor
+++ b/basis/cpu/x86/x86.factor
@ -1534,9 +1534,10 @@ enable-float-min/max
 enable-fsqrt

 : check-sse ( -- )
-    [ { (sse-version) } compile ] with-optimizer
+    [ { (sse-version) (popcnt?) } compile ] with-optimizer
    sse-version 20 < [
        "Factor requires SSE2, which your CPU does not support." print
        flush
        1 exit
-    ] when ;
+    ] when
+    popcnt? [ enable-bit-count ] when ;