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-rw-r--r--test/Assembler/ConstantExprFoldSelect.ll8
1 files changed, 8 insertions, 0 deletions
diff --git a/test/Assembler/ConstantExprFoldSelect.ll b/test/Assembler/ConstantExprFoldSelect.ll
new file mode 100644
index 0000000000..b000e02653
--- /dev/null
+++ b/test/Assembler/ConstantExprFoldSelect.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | llvm-dis | FileCheck %s
+; PR18319
+
+define void @function() {
+ %c = trunc <4 x i16> select (<4 x i1> <i1 undef, i1 undef, i1 false, i1 true>, <4 x i16> <i16 undef, i16 2, i16 3, i16 4>, <4 x i16> <i16 -1, i16 -2, i16 -3, i16 -4>) to <4 x i8>
+; CHECK: <i16 undef, i16 -2, i16 -3, i16 4>
+ ret void
+}