diff options
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 4 | ||||
| -rw-r--r-- | test/CodeGen/Generic/pr12507.ll | 18 |
2 files changed, 20 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index dbc1ca9..cf7ce58 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -4431,9 +4431,9 @@ static bool isTruncateOf(SelectionDAG &DAG, SDValue N, SDValue &Op, ConstantSDNode *COp0 = dyn_cast<ConstantSDNode>(Op0); ConstantSDNode *COp1 = dyn_cast<ConstantSDNode>(Op1); - if (COp0 && COp0->getZExtValue() == 0) + if (COp0 && COp0->isNullValue()) Op = Op1; - else if (COp1 && COp1->getZExtValue() == 0) + else if (COp1 && COp1->isNullValue()) Op = Op0; else return false; diff --git a/test/CodeGen/Generic/pr12507.ll b/test/CodeGen/Generic/pr12507.ll new file mode 100644 index 0000000..c793358 --- /dev/null +++ b/test/CodeGen/Generic/pr12507.ll @@ -0,0 +1,18 @@ +; RUN: llc < %s + +@c = external global i32, align 4 + +define void @foo(i160 %x) { +entry: + %cmp.i = icmp ne i160 %x, 340282366920938463463374607431768211456 + %conv.i = zext i1 %cmp.i to i32 + %tobool.i = icmp eq i32 %conv.i, 0 + br i1 %tobool.i, label %if.then.i, label %fn1.exit + +if.then.i: + store i32 0, i32* @c, align 4 + br label %fn1.exit + +fn1.exit: + ret void +} |