1 ; RUN: llc < %s -enable-tail-merge | FileCheck %s
2 ; Check that calls to baz and quux are tail-merged.
11 target triple = "arm-apple-darwin8"
13 define i32 @f(i32 %i, i32 %q) {
15 %i_addr = alloca i32 ; <i32*> [#uses=2]
16 %q_addr = alloca i32 ; <i32*> [#uses=2]
17 %retval = alloca i32, align 4 ; <i32*> [#uses=1]
18 store i32 %i, i32* %i_addr
19 store i32 %q, i32* %q_addr
20 %tmp = load i32, i32* %i_addr ; <i32> [#uses=1]
21 %tmp1 = icmp ne i32 %tmp, 0 ; <i1> [#uses=1]
22 %tmp12 = zext i1 %tmp1 to i8 ; <i8> [#uses=1]
23 %toBool = icmp ne i8 %tmp12, 0 ; <i1> [#uses=1]
24 br i1 %toBool, label %cond_true, label %cond_false
26 cond_true: ; preds = %entry
27 %tmp3 = call i32 (...) @bar( ) ; <i32> [#uses=0]
28 %tmp4 = call i32 (...) @baz( i32 5, i32 6 ) ; <i32> [#uses=0]
31 cond_false: ; preds = %entry
32 %tmp5 = call i32 (...) @foo( ) ; <i32> [#uses=0]
33 %tmp6 = call i32 (...) @baz( i32 5, i32 6 ) ; <i32> [#uses=0]
36 cond_next: ; preds = %cond_false, %cond_true
37 %tmp7 = load i32, i32* %q_addr ; <i32> [#uses=1]
38 %tmp8 = icmp ne i32 %tmp7, 0 ; <i1> [#uses=1]
39 %tmp89 = zext i1 %tmp8 to i8 ; <i8> [#uses=1]
40 %toBool10 = icmp ne i8 %tmp89, 0 ; <i1> [#uses=1]
41 br i1 %toBool10, label %cond_true11, label %cond_false15
43 cond_true11: ; preds = %cond_next
44 %tmp13 = call i32 (...) @foo( ) ; <i32> [#uses=0]
45 %tmp14 = call i32 (...) @quux( i32 3, i32 4 ) ; <i32> [#uses=0]
48 cond_false15: ; preds = %cond_next
49 %tmp16 = call i32 (...) @bar( ) ; <i32> [#uses=0]
50 %tmp17 = call i32 (...) @quux( i32 3, i32 4 ) ; <i32> [#uses=0]
53 cond_next18: ; preds = %cond_false15, %cond_true11
54 %tmp19 = call i32 (...) @bar( ) ; <i32> [#uses=0]
57 return: ; preds = %cond_next18
58 %retval20 = load i32, i32* %retval ; <i32> [#uses=1]
68 declare i32 @quux(...)