1; RUN: llc < %s -march=arm -enable-tail-merge | grep bl.*baz | count 1
2; RUN: llc < %s -march=arm -enable-tail-merge | grep bl.*quux | count 1
3; Check that calls to baz and quux are tail-merged.
4; PR1628
5
6; ModuleID = 'tail.c'
7target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
8target triple = "i686-apple-darwin8"
9
10define i32 @f(i32 %i, i32 %q) {
11entry:
12	%i_addr = alloca i32		; <i32*> [#uses=2]
13	%q_addr = alloca i32		; <i32*> [#uses=2]
14	%retval = alloca i32, align 4		; <i32*> [#uses=1]
15	store i32 %i, i32* %i_addr
16	store i32 %q, i32* %q_addr
17	%tmp = load i32* %i_addr		; <i32> [#uses=1]
18	%tmp1 = icmp ne i32 %tmp, 0		; <i1> [#uses=1]
19	%tmp12 = zext i1 %tmp1 to i8		; <i8> [#uses=1]
20	%toBool = icmp ne i8 %tmp12, 0		; <i1> [#uses=1]
21	br i1 %toBool, label %cond_true, label %cond_false
22
23cond_true:		; preds = %entry
24	%tmp3 = call i32 (...)* @bar( )		; <i32> [#uses=0]
25	%tmp4 = call i32 (...)* @baz( i32 5, i32 6 )		; <i32> [#uses=0]
26	br label %cond_next
27
28cond_false:		; preds = %entry
29	%tmp5 = call i32 (...)* @foo( )		; <i32> [#uses=0]
30	%tmp6 = call i32 (...)* @baz( i32 5, i32 6 )		; <i32> [#uses=0]
31	br label %cond_next
32
33cond_next:		; preds = %cond_false, %cond_true
34	%tmp7 = load i32* %q_addr		; <i32> [#uses=1]
35	%tmp8 = icmp ne i32 %tmp7, 0		; <i1> [#uses=1]
36	%tmp89 = zext i1 %tmp8 to i8		; <i8> [#uses=1]
37	%toBool10 = icmp ne i8 %tmp89, 0		; <i1> [#uses=1]
38	br i1 %toBool10, label %cond_true11, label %cond_false15
39
40cond_true11:		; preds = %cond_next
41	%tmp13 = call i32 (...)* @foo( )		; <i32> [#uses=0]
42	%tmp14 = call i32 (...)* @quux( i32 3, i32 4 )		; <i32> [#uses=0]
43	br label %cond_next18
44
45cond_false15:		; preds = %cond_next
46	%tmp16 = call i32 (...)* @bar( )		; <i32> [#uses=0]
47	%tmp17 = call i32 (...)* @quux( i32 3, i32 4 )		; <i32> [#uses=0]
48	br label %cond_next18
49
50cond_next18:		; preds = %cond_false15, %cond_true11
51	%tmp19 = call i32 (...)* @bar( )		; <i32> [#uses=0]
52	br label %return
53
54return:		; preds = %cond_next18
55	%retval20 = load i32* %retval		; <i32> [#uses=1]
56	ret i32 %retval20
57}
58
59declare i32 @bar(...)
60
61declare i32 @baz(...)
62
63declare i32 @foo(...)
64
65declare i32 @quux(...)
66