1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
| ; RUN: opt < %s -simplifycfg -S | not grep icmp
; ModuleID = '/tmp/x.bc'
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-f80:128:128"
target triple = "i686-pc-linux-gnu"
define i32 @x(i32 %x) {
entry:
%cmp = icmp eq i32 %x, 8 ; <i1> [#uses=1]
br i1 %cmp, label %ifthen, label %ifend
ifthen: ; preds = %entry
%call = call i32 (...) @foo() ; <i32> [#uses=0]
br label %ifend
ifend: ; preds = %ifthen, %entry
%cmp2 = icmp ne i32 %x, 8 ; <i1> [#uses=1]
br i1 %cmp2, label %ifthen3, label %ifend5
ifthen3: ; preds = %ifend
%call4 = call i32 (...) @foo() ; <i32> [#uses=0]
br label %ifend5
ifend5: ; preds = %ifthen3, %ifend
%cmp7 = icmp eq i32 %x, 9 ; <i1> [#uses=1]
br i1 %cmp7, label %ifthen8, label %ifend10
ifthen8: ; preds = %ifend5
%call9 = call i32 (...) @bar() ; <i32> [#uses=0]
br label %ifend10
ifend10: ; preds = %ifthen8, %ifend5
%cmp12 = icmp ne i32 %x, 9 ; <i1> [#uses=1]
br i1 %cmp12, label %ifthen13, label %ifend15
ifthen13: ; preds = %ifend10
%call14 = call i32 (...) @bar() ; <i32> [#uses=0]
br label %ifend15
ifend15: ; preds = %ifthen13, %ifend10
ret i32 0
}
declare i32 @foo(...)
declare i32 @bar(...)
|