Restore eda2c756edc4dca004ba217d5bf361235dd9de1f

1 files changed, 18 insertions, 1 deletions

diff --git a/i386-gen.c b/i386-gen.c
index ece054b..b9811f5 100644
--- a/i386-gen.c
+++ b/i386-gen.c
@@ -677,7 +677,7 @@ ST_FUNC int gtst(int inv, int t)
         /* fast case : can jump directly since flags are set */
         g(0x0f);
         t = psym((vtop->c.i - 16) ^ inv, t);
-    } else { /* VT_JMP || VT_JMPI */
+    } else if (v == VT_JMP || v == VT_JMPI) {
         /* && or || optimization */
         if ((v & 1) == inv) {
             /* insert vtop->c jump list in t */
@@ -690,6 +690,23 @@ ST_FUNC int gtst(int inv, int t)
             t = gjmp(t);
             gsym(vtop->c.i);
         }
+	} else {
+        if (is_float(vtop->type.t) || 
+            (vtop->type.t & VT_BTYPE) == VT_LLONG) {
+            vpushi(0);
+            gen_op(TOK_NE);
+        }
+        if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST) {
+            /* constant jmp optimization */
+            if ((vtop->c.i != 0) != inv) 
+                t = gjmp(t);
+        } else {
+            v = gv(RC_INT);
+            o(0x85);
+            o(0xc0 + v * 9);
+            g(0x0f);
+            t = psym(0x85 ^ inv, t);
+        }
     }
     vtop--;
     return t;