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-rw-r--r--llvm/test/CodeGen/X86/fold-vector-shl-crash.ll9
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/fold-vector-shl-crash.ll b/llvm/test/CodeGen/X86/fold-vector-shl-crash.ll
new file mode 100644
index 00000000000..9f81e44074f
--- /dev/null
+++ b/llvm/test/CodeGen/X86/fold-vector-shl-crash.ll
@@ -0,0 +1,9 @@
+; RUN: llc < %s -march=x86-64 | FileCheck %s
+; RUN: llc < %s -march=x86 | FileCheck %s
+
+;CHECK-LABEL: test
+define <2 x i256> @test() {
+ %S = shufflevector <2 x i256> zeroinitializer, <2 x i256> <i256 -1, i256 -1>, <2 x i32> <i32 0, i32 2>
+ %B = shl <2 x i256> %S, <i256 -1, i256 -1> ; DAG Combiner crashes here
+ ret <2 x i256> %B
+}
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