src/hotspot/share/opto/parse2.cpp

rev 54102 : 8261812: C2 compilation fails with assert(!had_error) failed: bad dominance
Reviewed-by: kvn, thartmann

@@ -2626,23 +2626,22 @@
     push_pair(b);
     break;
   case Bytecodes::_i2b:
     // Sign extend
     a = pop();
-    a = _gvn.transform( new LShiftINode(a,_gvn.intcon(24)) );
-    a = _gvn.transform( new RShiftINode(a,_gvn.intcon(24)) );
-    push( a );
+    a = Compile::narrow_value(T_BYTE, a, NULL, &_gvn, true);
+    push(a);
     break;
   case Bytecodes::_i2s:
     a = pop();
-    a = _gvn.transform( new LShiftINode(a,_gvn.intcon(16)) );
-    a = _gvn.transform( new RShiftINode(a,_gvn.intcon(16)) );
-    push( a );
+    a = Compile::narrow_value(T_SHORT, a, NULL, &_gvn, true);
+    push(a);
     break;
   case Bytecodes::_i2c:
     a = pop();
-    push( _gvn.transform( new AndINode(a,_gvn.intcon(0xFFFF)) ) );
+    a = Compile::narrow_value(T_CHAR, a, NULL, &_gvn, true);
+    push(a);
     break;
 
   case Bytecodes::_i2f:
     a = pop();
     b = _gvn.transform( new ConvI2FNode(a) ) ;