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-rw-r--r--test/Bitcode/shuffle.ll31
1 files changed, 31 insertions, 0 deletions
diff --git a/test/Bitcode/shuffle.ll b/test/Bitcode/shuffle.ll
new file mode 100644
index 0000000000..c3c01c6692
--- /dev/null
+++ b/test/Bitcode/shuffle.ll
@@ -0,0 +1,31 @@
+; RUN: llvm-as < %s | llvm-dis
+
+; <rdar://problem/8622574>
+; tests the bitcodereader can handle the case where the reader will initially
+; create shuffle with a place holder mask.
+
+
+define <4 x float> @test(<2 x double> %d2) {
+entry:
+ %call20.i = tail call <4 x float> @cmp(<2 x double> %d2,
+ <2 x double> bitcast (
+ <4 x float> shufflevector (
+ <3 x float> shufflevector (
+ <4 x float> shufflevector (
+ <3 x float> bitcast (
+ i96 trunc (
+ i128 bitcast (<2 x double> bitcast (
+ <4 x i32> <i32 0, i32 0, i32 0, i32 undef> to <2 x double>)
+ to i128) to i96)
+ to <3 x float>),
+ <3 x float> undef,
+ <4 x i32> <i32 0, i32 1, i32 2, i32 undef>),
+ <4 x float> undef,
+ <3 x i32> <i32 0, i32 1, i32 2>),
+ <3 x float> undef,
+ <4 x i32> <i32 0, i32 1, i32 2, i32 undef>)
+ to <2 x double>))
+ ret <4 x float> %call20.i
+}
+
+declare <4 x float> @cmp(<2 x double>, <2 x double>)