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
|
; This test makes sure that these instructions are properly eliminated.
;
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep select
implementation
int %test1(int %A, int %B) {
%C = select bool false, int %A, int %B
ret int %C
}
int %test2(int %A, int %B) {
%C = select bool true, int %A, int %B
ret int %C
}
int %test3(bool %C, int %I) {
%V = select bool %C, int %I, int %I ; V = I
ret int %V
}
bool %test4(bool %C) {
%V = select bool %C, bool true, bool false ; V = C
ret bool %V
}
bool %test5(bool %C) {
%V = select bool %C, bool false, bool true ; V = !C
ret bool %V
}
int %test6(bool %C) {
%V = select bool %C, int 1, int 0 ; V = cast C to int
ret int %V
}
|