xref: /aosp_15_r20/external/llvm/test/Analysis/GlobalsModRef/2008-09-03-ReadGlobals.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -globals-aa -gvn -S | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker@g = internal global i32 0		; <i32*> [#uses=2]
4*9880d681SAndroid Build Coastguard Worker
5*9880d681SAndroid Build Coastguard Workerdefine i32 @r() {
6*9880d681SAndroid Build Coastguard Worker	%tmp = load i32, i32* @g		; <i32> [#uses=1]
7*9880d681SAndroid Build Coastguard Worker	ret i32 %tmp
8*9880d681SAndroid Build Coastguard Worker}
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Workerdefine i32 @f() {
11*9880d681SAndroid Build Coastguard Worker; CHECK: call i32 @e()
12*9880d681SAndroid Build Coastguard Worker; CHECK: call i32 @e()
13*9880d681SAndroid Build Coastguard Workerentry:
14*9880d681SAndroid Build Coastguard Worker	%tmp = call i32 @e( )		; <i32> [#uses=1]
15*9880d681SAndroid Build Coastguard Worker	store i32 %tmp, i32* @g
16*9880d681SAndroid Build Coastguard Worker	%tmp2 = call i32 @e( )		; <i32> [#uses=1]
17*9880d681SAndroid Build Coastguard Worker	ret i32 %tmp2
18*9880d681SAndroid Build Coastguard Worker}
19*9880d681SAndroid Build Coastguard Worker
20*9880d681SAndroid Build Coastguard Workerdeclare i32 @e() readonly	; might call @r
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