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
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
; RUN: llc < %s | FileCheck %s
; rdar://5671654
; The loads should fold into the testl instructions, no matter how
; the inputs are commuted.
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
target triple = "x86_64-apple-darwin7"
define i32 @test(ptr %P, ptr %G) nounwind {
; CHECK-LABEL: test:
; CHECK-NOT: ret
; CHECK: testl %{{.*}}, (%{{.*}})
; CHECK: ret
entry:
%0 = load i32, ptr %P, align 4 ; <i32> [#uses=3]
%1 = load i32, ptr %G, align 4 ; <i32> [#uses=1]
%2 = and i32 %1, %0 ; <i32> [#uses=1]
%3 = icmp eq i32 %2, 0 ; <i1> [#uses=1]
br i1 %3, label %bb1, label %bb
bb: ; preds = %entry
%4 = tail call i32 @bar() nounwind ; <i32> [#uses=0]
ret i32 %0
bb1: ; preds = %entry
ret i32 %0
}
define i32 @test2(ptr %P, ptr %G) nounwind {
; CHECK-LABEL: test2:
; CHECK-NOT: ret
; CHECK: testl %{{.*}}, (%{{.*}})
; CHECK: ret
entry:
%0 = load i32, ptr %P, align 4 ; <i32> [#uses=3]
%1 = load i32, ptr %G, align 4 ; <i32> [#uses=1]
%2 = and i32 %0, %1 ; <i32> [#uses=1]
%3 = icmp eq i32 %2, 0 ; <i1> [#uses=1]
br i1 %3, label %bb1, label %bb
bb: ; preds = %entry
%4 = tail call i32 @bar() nounwind ; <i32> [#uses=0]
ret i32 %0
bb1: ; preds = %entry
ret i32 %0
}
define i32 @test3(ptr %P, ptr %G) nounwind {
; CHECK-LABEL: test3:
; CHECK-NOT: ret
; CHECK: testl %{{.*}}, (%{{.*}})
; CHECK: ret
entry:
%0 = load i32, ptr %P, align 4 ; <i32> [#uses=3]
%1 = load i32, ptr %G, align 4 ; <i32> [#uses=1]
%2 = and i32 %0, %1 ; <i32> [#uses=1]
%3 = icmp eq i32 %2, 0 ; <i1> [#uses=1]
br i1 %3, label %bb1, label %bb
bb: ; preds = %entry
%4 = tail call i32 @bar() nounwind ; <i32> [#uses=0]
ret i32 %1
bb1: ; preds = %entry
ret i32 %1
}
declare i32 @bar()
|
