1 ; RUN: llc < %s | FileCheck %s
2 ; RUN: llc < %s -enable-tail-merge=0 | FileCheck --check-prefix=NOMERGE %s
4 ; Check that tail merging is the default on ARM, and that -enable-tail-merge=0
14 ; NOMERGE-DAG: bl _baz
15 ; NOMERGE-DAG: bl _baz
17 ; NOMERGE-DAG: bl _quux
18 ; NOMERGE-DAG: bl _quux
21 target 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"
22 target triple = "arm-apple-darwin8"
24 define i32 @f(i32 %i, i32 %q) {
26 %i_addr = alloca i32 ; <i32*> [#uses=2]
27 %q_addr = alloca i32 ; <i32*> [#uses=2]
28 %retval = alloca i32, align 4 ; <i32*> [#uses=1]
29 store i32 %i, i32* %i_addr
30 store i32 %q, i32* %q_addr
31 %tmp = load i32, i32* %i_addr ; <i32> [#uses=1]
32 %tmp1 = icmp ne i32 %tmp, 0 ; <i1> [#uses=1]
33 %tmp12 = zext i1 %tmp1 to i8 ; <i8> [#uses=1]
34 %toBool = icmp ne i8 %tmp12, 0 ; <i1> [#uses=1]
35 br i1 %toBool, label %cond_true, label %cond_false
37 cond_true: ; preds = %entry
38 %tmp3 = call i32 (...) @bar( ) ; <i32> [#uses=0]
39 %tmp4 = call i32 (...) @baz( i32 5, i32 6 ) ; <i32> [#uses=0]
40 %tmp7 = load i32, i32* %q_addr ; <i32> [#uses=1]
41 %tmp8 = icmp ne i32 %tmp7, 0 ; <i1> [#uses=1]
42 %tmp89 = zext i1 %tmp8 to i8 ; <i8> [#uses=1]
43 %toBool10 = icmp ne i8 %tmp89, 0 ; <i1> [#uses=1]
44 br i1 %toBool10, label %cond_true11, label %cond_false15
46 cond_false: ; preds = %entry
47 %tmp5 = call i32 (...) @foo( ) ; <i32> [#uses=0]
48 %tmp6 = call i32 (...) @baz( i32 5, i32 6 ) ; <i32> [#uses=0]
49 %tmp27 = load i32, i32* %q_addr ; <i32> [#uses=1]
50 %tmp28 = icmp ne i32 %tmp27, 0 ; <i1> [#uses=1]
51 %tmp289 = zext i1 %tmp28 to i8 ; <i8> [#uses=1]
52 %toBool210 = icmp ne i8 %tmp289, 0 ; <i1> [#uses=1]
53 br i1 %toBool210, label %cond_true11, label %cond_false15
55 cond_true11: ; preds = %cond_next
56 %tmp13 = call i32 (...) @foo( ) ; <i32> [#uses=0]
57 %tmp14 = call i32 (...) @quux( i32 3, i32 4 ) ; <i32> [#uses=0]
60 cond_false15: ; preds = %cond_next
61 %tmp16 = call i32 (...) @bar( ) ; <i32> [#uses=0]
62 %tmp17 = call i32 (...) @quux( i32 3, i32 4 ) ; <i32> [#uses=0]
65 cond_next18: ; preds = %cond_false15, %cond_true11
66 %tmp19 = call i32 (...) @bar( ) ; <i32> [#uses=0]
69 return: ; preds = %cond_next18
70 %retval20 = load i32, i32* %retval ; <i32> [#uses=1]
80 declare i32 @quux(...)