1 files changed, 84 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb2/thumb2-ifcvt1.ll b/test/CodeGen/Thumb2/thumb2-ifcvt1.ll
new file mode 100644
index 0000000..71199ab
--- /dev/null
+++ b/test/CodeGen/Thumb2/thumb2-ifcvt1.ll
@@ -0,0 +1,84 @@
+; RUN: llc < %s -mtriple=thumbv7-apple-darwin | FileCheck %s
+
+define i32 @t1(i32 %a, i32 %b, i32 %c, i32 %d) {
+; CHECK: t1:
+; CHECK: it ne
+; CHECK: cmpne
+	switch i32 %c, label %cond_next [
+		 i32 1, label %cond_true
+		 i32 7, label %cond_true
+	]
+
+cond_true:
+	%tmp12 = add i32 %a, 1
+	%tmp1518 = add i32 %tmp12, %b
+	ret i32 %tmp1518
+
+cond_next:
+	%tmp15 = add i32 %b, %a
+	ret i32 %tmp15
+}
+
+; FIXME: Check for # of unconditional branch after adding branch folding post ifcvt.
+define i32 @t2(i32 %a, i32 %b) {
+entry:
+; CHECK: t2:
+; CHECK: ite le
+; CHECK: suble
+; CHECK: subgt
+	%tmp1434 = icmp eq i32 %a, %b		; <i1> [#uses=1]
+	br i1 %tmp1434, label %bb17, label %bb.outer
+
+bb.outer:		; preds = %cond_false, %entry
+	%b_addr.021.0.ph = phi i32 [ %b, %entry ], [ %tmp10, %cond_false ]		; <i32> [#uses=5]
+	%a_addr.026.0.ph = phi i32 [ %a, %entry ], [ %a_addr.026.0, %cond_false ]		; <i32> [#uses=1]
+	br label %bb
+
+bb:		; preds = %cond_true, %bb.outer
+	%indvar = phi i32 [ 0, %bb.outer ], [ %indvar.next, %cond_true ]		; <i32> [#uses=2]
+	%tmp. = sub i32 0, %b_addr.021.0.ph		; <i32> [#uses=1]
+	%tmp.40 = mul i32 %indvar, %tmp.		; <i32> [#uses=1]
+	%a_addr.026.0 = add i32 %tmp.40, %a_addr.026.0.ph		; <i32> [#uses=6]
+	%tmp3 = icmp sgt i32 %a_addr.026.0, %b_addr.021.0.ph		; <i1> [#uses=1]
+	br i1 %tmp3, label %cond_true, label %cond_false
+
+cond_true:		; preds = %bb
+	%tmp7 = sub i32 %a_addr.026.0, %b_addr.021.0.ph		; <i32> [#uses=2]
+	%tmp1437 = icmp eq i32 %tmp7, %b_addr.021.0.ph		; <i1> [#uses=1]
+	%indvar.next = add i32 %indvar, 1		; <i32> [#uses=1]
+	br i1 %tmp1437, label %bb17, label %bb
+
+cond_false:		; preds = %bb
+	%tmp10 = sub i32 %b_addr.021.0.ph, %a_addr.026.0		; <i32> [#uses=2]
+	%tmp14 = icmp eq i32 %a_addr.026.0, %tmp10		; <i1> [#uses=1]
+	br i1 %tmp14, label %bb17, label %bb.outer
+
+bb17:		; preds = %cond_false, %cond_true, %entry
+	%a_addr.026.1 = phi i32 [ %a, %entry ], [ %tmp7, %cond_true ], [ %a_addr.026.0, %cond_false ]		; <i32> [#uses=1]
+	ret i32 %a_addr.026.1
+}
+
+@x = external global i32*		; <i32**> [#uses=1]
+
+define void @foo(i32 %a) {
+entry:
+	%tmp = load i32** @x		; <i32*> [#uses=1]
+	store i32 %a, i32* %tmp
+	ret void
+}
+
+define void @t3(i32 %a, i32 %b) {
+entry:
+; CHECK: t3:
+; CHECK: it lt
+; CHECK: poplt {r7, pc}
+	%tmp1 = icmp sgt i32 %a, 10		; <i1> [#uses=1]
+	br i1 %tmp1, label %cond_true, label %UnifiedReturnBlock
+
+cond_true:		; preds = %entry
+	tail call void @foo( i32 %b )
+	ret void
+
+UnifiedReturnBlock:		; preds = %entry
+	ret void
+}