Fix a somewhat nasty crasher in PR13378. This crashes inside of

[oota-llvm.git] / test / CodeGen / ARM / twoaddrinstr.ll

diff --git a/test/CodeGen/ARM/twoaddrinstr.ll b/test/CodeGen/ARM/twoaddrinstr.ll
new file mode 100644 (file)
index 0000000..4e227dd
--- /dev/null
+++ b/test/CodeGen/ARM/twoaddrinstr.ll
@@ -0,0 +1,21 @@
+; Tests for the two-address instruction pass.
+; RUN: llc -march=arm -mcpu=cortex-a9 < %s | FileCheck %s
+
+define void @PR13378() nounwind {
+; This was orriginally a crasher trying to schedule the instructions.
+; CHECK:      PR13378:
+; CHECK:        vldmia
+; CHECK-NEXT:   vmov.f32
+; CHECK-NEXT:   vstmia
+; CHECK-NEXT:   vstmia
+; CHECK-NEXT:   vmov.f32
+; CHECK-NEXT:   vstmia
+
+entry:
+  %0 = load <4 x float>* undef
+  store <4 x float> zeroinitializer, <4 x float>* undef
+  store <4 x float> %0, <4 x float>* undef
+  %1 = insertelement <4 x float> %0, float 1.000000e+00, i32 3
+  store <4 x float> %1, <4 x float>* undef
+  unreachable
+}