Add VSELECT to LegalizeVectorTypes::ScalariseVectorResult. Previously it would crash if it encountered a 1 element VSELECT. Solution is slightly more complicated than just creating a SELET as we have to mask or sign extend the vector condition if it had different boolean contents from the scalar condition. Fixes <rdar://problem/11178095>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153976 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/Generic/select.ll b/test/CodeGen/Generic/select.ll
index 63052c1..77636eb 100644
--- a/test/CodeGen/Generic/select.ll
+++ b/test/CodeGen/Generic/select.ll
@@ -185,3 +185,11 @@
ret i32 %reg820
}
+; Test case for scalarising a 1 element vselect
+;
+define <1 x i32> @checkScalariseVSELECT(<1 x i32> %a, <1 x i32> %b) {
+ %cond = icmp uge <1 x i32> %a, %b
+ %s = select <1 x i1> %cond, <1 x i32> %a, <1 x i32> %b
+ ret <1 x i32> %s
+}
+