Imported Upstream version 5.18.0.179

Former-commit-id: 67aa10e65b237e1c4537630979ee99ebe1374215

external/llvm/test/CodeGen/AArch64/arm64-2013-01-23-sext-crash.ll

@@ -0,0 +1,37 @@
+; RUN: llc < %s -mtriple=arm64-eabi
+
+; Make sure we are not crashing on this test.
+
+define void @autogen_SD12881() {
+BB:
+  %B17 = ashr <4 x i32> zeroinitializer, zeroinitializer
+  br label %CF
+
+CF:                                               ; preds = %CF83, %CF, %BB
+  br i1 undef, label %CF, label %CF83
+
+CF83:                                             ; preds = %CF
+  %FC70 = sitofp <4 x i32> %B17 to <4 x double>
+  br label %CF
+}
+
+
+define void @autogen_SD12881_2() {
+BB:
+  %B17 = ashr <4 x i32> zeroinitializer, zeroinitializer
+  br label %CF
+
+CF:                                               ; preds = %CF83, %CF, %BB
+  br i1 undef, label %CF, label %CF83
+
+CF83:                                             ; preds = %CF
+  %FC70 = uitofp <4 x i32> %B17 to <4 x double>
+  br label %CF
+}
+
+define void @_Z12my_example2bv() nounwind noinline ssp {
+entry:
+  %0 = fptosi <2 x double> undef to <2 x i32>
+  store <2 x i32> %0, <2 x i32>* undef, align 8
+  ret void
+}