diff options
Diffstat (limited to 'src/main/java/com/seaofnodes/simple/node/SarNode.java')
| -rw-r--r-- | src/main/java/com/seaofnodes/simple/node/SarNode.java | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/main/java/com/seaofnodes/simple/node/SarNode.java b/src/main/java/com/seaofnodes/simple/node/SarNode.java index 429be229..737b531f 100644 --- a/src/main/java/com/seaofnodes/simple/node/SarNode.java +++ b/src/main/java/com/seaofnodes/simple/node/SarNode.java @@ -5,9 +5,9 @@ import com.seaofnodes.simple.type.Type; import com.seaofnodes.simple.type.TypeInteger; public class SarNode extends ArithNode { - public SarNode(Parser.Lexer loc, Node lhs, Node rhs) { super(loc, lhs, rhs); } + public SarNode(Parser.Lexer loc, Node lhs, Node rhs) { super(loc, lhs, rhs, (byte)1); } + @Override public Tag serialTag() { return Tag.Sar; } - @Override public String label() { return "Sar"; } @Override public String op() { return ">>"; } @Override long doOp( long x, long y ) { return x >> y; } @Override TypeInteger doOp( TypeInteger x, TypeInteger y ) { @@ -22,10 +22,11 @@ public class SarNode extends ArithNode { public Node idealize() { Node lhs = in(1); Node rhs = in(2); + Type t2 = rhs._type; // Sar of 0. - if( t2.isConstant() && t2 instanceof TypeInteger i && (i.value()&63)==0 && lhs._type instanceof TypeInteger ) + if( t2.isConstant() && t2 instanceof TypeInteger i && (i.value()&63)==0 && forceInt(lhs) && lhs._type instanceof TypeInteger ) return lhs; // TODO: x >> 3 >> (y ? 1 : 2) ==> x >> (y ? 4 : 5) |