blob: f6f7db933d39213e074024465b50294fdd4c372d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
; Test that GCSE uses basicaa to do alias analysis, which is capable of
; disambiguating some obvious cases. All loads should be removable in
; this testcase.
; RUN: if as < %s | opt -basicaa -gcse -instcombine -dce | dis | grep load
; RUN: then exit 1
; RUN: else exit 0
; RUN: fi
%A = global int 7
%B = global int 8
implementation
int %test() {
%A1 = load int* %A
store int 123, int* %B ; Store cannot alias %A
%A2 = load int* %A
%X = sub int %A1, %A2
ret int %X
}
|