Check if Type is a vector before calling function Type::getVectorNumElements.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178208 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 15 insertions, 0 deletions

diff --git a/test/Transforms/InstCombine/vector-type.ll b/test/Transforms/InstCombine/vector-type.ll
new file mode 100644
index 0000000000..28b3441f45
--- /dev/null
+++ b/test/Transforms/InstCombine/vector-type.ll
@@ -0,0 +1,15 @@
+;  The code in InstCombiner::FoldSelectOpOp was calling
+;  Type::getVectorNumElements without checking first if the type was a vector.
+
+; RUN: opt < %s -instcombine -S -O3
+
+define i32 @vselect1(i32 %a.coerce, i32 %b.coerce, i32 %c.coerce) {
+entry:
+  %0 = bitcast i32 %a.coerce to <2 x i16>
+  %1 = bitcast i32 %b.coerce to <2 x i16>
+  %2 = bitcast i32 %c.coerce to <2 x i16>
+  %cmp = icmp sge <2 x i16> %2, zeroinitializer
+  %or = select <2 x i1> %cmp, <2 x i16> %0, <2 x i16> %1
+  %3 = bitcast <2 x i16> %or to i32
+  ret i32 %3
+}