source: icGREP/icgrep-devel/llvm-3.8.0.src/test/CodeGen/ARM/2007-05-09-tailmerge-2.ll @ 5027

Last change on this file since 5027 was 5027, checked in by cameron, 3 years ago

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1; RUN: llc < %s -march=arm  | FileCheck %s
2
3; Check that calls to baz and quux are tail-merged.
4; CHECK: bl _baz
5; CHECK-NOT: bl _baz
6; CHECK: bl _quux
7; CHECK-NOT: bl _quux
8
9; PR1628
10
11; ModuleID = 'tail.c'
12target 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"
13target triple = "i686-apple-darwin8"
14
15define i32 @f(i32 %i, i32 %q) {
16entry:
17        %i_addr = alloca i32            ; <i32*> [#uses=2]
18        %q_addr = alloca i32            ; <i32*> [#uses=2]
19        %retval = alloca i32, align 4           ; <i32*> [#uses=1]
20        store i32 %i, i32* %i_addr
21        store i32 %q, i32* %q_addr
22        %tmp = load i32, i32* %i_addr           ; <i32> [#uses=1]
23        %tmp1 = icmp ne i32 %tmp, 0             ; <i1> [#uses=1]
24        %tmp12 = zext i1 %tmp1 to i8            ; <i8> [#uses=1]
25        %toBool = icmp ne i8 %tmp12, 0          ; <i1> [#uses=1]
26        br i1 %toBool, label %cond_true, label %cond_false
27
28cond_true:              ; preds = %entry
29        %tmp3 = call i32 (...) @bar( )          ; <i32> [#uses=0]
30        %tmp4 = call i32 (...) @baz( i32 5, i32 6 )             ; <i32> [#uses=0]
31        %tmp7 = load i32, i32* %q_addr          ; <i32> [#uses=1]
32        %tmp8 = icmp ne i32 %tmp7, 0            ; <i1> [#uses=1]
33        %tmp89 = zext i1 %tmp8 to i8            ; <i8> [#uses=1]
34        %toBool10 = icmp ne i8 %tmp89, 0                ; <i1> [#uses=1]
35        br i1 %toBool10, label %cond_true11, label %cond_false15
36
37cond_false:             ; preds = %entry
38        %tmp5 = call i32 (...) @foo( )          ; <i32> [#uses=0]
39        %tmp6 = call i32 (...) @baz( i32 5, i32 6 )             ; <i32> [#uses=0]
40        %tmp27 = load i32, i32* %q_addr         ; <i32> [#uses=1]
41        %tmp28 = icmp ne i32 %tmp27, 0          ; <i1> [#uses=1]
42        %tmp289 = zext i1 %tmp28 to i8          ; <i8> [#uses=1]
43        %toBool210 = icmp ne i8 %tmp289, 0              ; <i1> [#uses=1]
44        br i1 %toBool210, label %cond_true11, label %cond_false15
45
46cond_true11:            ; preds = %cond_next
47        %tmp13 = call i32 (...) @foo( )         ; <i32> [#uses=0]
48        %tmp14 = call i32 (...) @quux( i32 3, i32 4 )           ; <i32> [#uses=0]
49        br label %cond_next18
50
51cond_false15:           ; preds = %cond_next
52        %tmp16 = call i32 (...) @bar( )         ; <i32> [#uses=0]
53        %tmp17 = call i32 (...) @quux( i32 3, i32 4 )           ; <i32> [#uses=0]
54        br label %cond_next18
55
56cond_next18:            ; preds = %cond_false15, %cond_true11
57        %tmp19 = call i32 (...) @bar( )         ; <i32> [#uses=0]
58        br label %return
59
60return:         ; preds = %cond_next18
61        %retval20 = load i32, i32* %retval              ; <i32> [#uses=1]
62        ret i32 %retval20
63}
64
65declare i32 @bar(...)
66
67declare i32 @baz(...)
68
69declare i32 @foo(...)
70
71declare i32 @quux(...)
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