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-rw-r--r--llvm/test/CodeGen/Thumb2/v8_IT_2.ll37
1 files changed, 37 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/Thumb2/v8_IT_2.ll b/llvm/test/CodeGen/Thumb2/v8_IT_2.ll
new file mode 100644
index 00000000000..fe88316d147
--- /dev/null
+++ b/llvm/test/CodeGen/Thumb2/v8_IT_2.ll
@@ -0,0 +1,37 @@
+; RUN: llc < %s -mtriple=thumbv8 | FileCheck %s
+
+ %struct.quad_struct = type { i32, i32, %struct.quad_struct*, %struct.quad_struct*, %struct.quad_struct*, %struct.quad_struct*, %struct.quad_struct* }
+
+define fastcc i32 @CountTree(%struct.quad_struct* %tree) {
+entry:
+; CHECK-LABEL: CountTree:
+; CHECK: bne
+; CHECK: cmp
+; CHECK: it eq
+; CHECK: cmpeq
+; CHECK: bne
+; CHECK: mov
+; CHECK: pop
+ br label %tailrecurse
+
+tailrecurse: ; preds = %bb, %entry
+ %tmp6 = load %struct.quad_struct** null ; <%struct.quad_struct*> [#uses=1]
+ %tmp9 = load %struct.quad_struct** null ; <%struct.quad_struct*> [#uses=2]
+ %tmp12 = load %struct.quad_struct** null ; <%struct.quad_struct*> [#uses=1]
+ %tmp14 = icmp eq %struct.quad_struct* null, null ; <i1> [#uses=1]
+ %tmp17 = icmp eq %struct.quad_struct* %tmp6, null ; <i1> [#uses=1]
+ %tmp23 = icmp eq %struct.quad_struct* %tmp9, null ; <i1> [#uses=1]
+ %tmp29 = icmp eq %struct.quad_struct* %tmp12, null ; <i1> [#uses=1]
+ %bothcond = and i1 %tmp17, %tmp14 ; <i1> [#uses=1]
+ %bothcond1 = and i1 %bothcond, %tmp23 ; <i1> [#uses=1]
+ %bothcond2 = and i1 %bothcond1, %tmp29 ; <i1> [#uses=1]
+ br i1 %bothcond2, label %return, label %bb
+
+bb: ; preds = %tailrecurse
+ %tmp41 = tail call fastcc i32 @CountTree( %struct.quad_struct* %tmp9 ) ; <i32> [#uses=0]
+ br label %tailrecurse
+
+return: ; preds = %tailrecurse
+ ret i32 0
+}
+
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