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
|
; RUN: opt < %s -scalarrepl -S | not grep alloca
; PR3290
;; Store of integer to whole alloca struct.
define i32 @test1(i64 %V) nounwind {
%X = alloca {{i32, i32}}
%Y = bitcast {{i32,i32}}* %X to i64*
store i64 %V, i64* %Y
%A = getelementptr {{i32,i32}}* %X, i32 0, i32 0, i32 0
%B = getelementptr {{i32,i32}}* %X, i32 0, i32 0, i32 1
%a = load i32* %A
%b = load i32* %B
%c = add i32 %a, %b
ret i32 %c
}
;; Store of integer to whole struct/array alloca.
define float @test2(i128 %V) nounwind {
%X = alloca {[4 x float]}
%Y = bitcast {[4 x float]}* %X to i128*
store i128 %V, i128* %Y
%A = getelementptr {[4 x float]}* %X, i32 0, i32 0, i32 0
%B = getelementptr {[4 x float]}* %X, i32 0, i32 0, i32 3
%a = load float* %A
%b = load float* %B
%c = fadd float %a, %b
ret float %c
}
;; Load of whole alloca struct as integer
define i64 @test3(i32 %a, i32 %b) nounwind {
%X = alloca {{i32, i32}}
%A = getelementptr {{i32,i32}}* %X, i32 0, i32 0, i32 0
%B = getelementptr {{i32,i32}}* %X, i32 0, i32 0, i32 1
store i32 %a, i32* %A
store i32 %b, i32* %B
%Y = bitcast {{i32,i32}}* %X to i64*
%Z = load i64* %Y
ret i64 %Z
}
;; load of integer from whole struct/array alloca.
define i128 @test4(float %a, float %b) nounwind {
%X = alloca {[4 x float]}
%A = getelementptr {[4 x float]}* %X, i32 0, i32 0, i32 0
%B = getelementptr {[4 x float]}* %X, i32 0, i32 0, i32 3
store float %a, float* %A
store float %b, float* %B
%Y = bitcast {[4 x float]}* %X to i128*
%V = load i128* %Y
ret i128 %V
}
|
