xref: /aosp_15_r20/external/llvm/test/Transforms/GlobalOpt/memset.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt -S -globalopt < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: internal
4*9880d681SAndroid Build Coastguard Worker
5*9880d681SAndroid Build Coastguard Worker; Both globals are write only, delete them.
6*9880d681SAndroid Build Coastguard Worker
7*9880d681SAndroid Build Coastguard Worker@G0 = internal global [58 x i8] c"asdlfkajsdlfkajsd;lfkajds;lfkjasd;flkajsd;lkfja;sdlkfjasd\00"         ; <[58 x i8]*> [#uses=1]
8*9880d681SAndroid Build Coastguard Worker@G1 = internal global [4 x i32] [ i32 1, i32 2, i32 3, i32 4 ]          ; <[4 x i32]*> [#uses=1]
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Workerdefine void @foo() {
11*9880d681SAndroid Build Coastguard Worker  %Blah = alloca [58 x i8]
12*9880d681SAndroid Build Coastguard Worker  %tmp3 = bitcast [58 x i8]* %Blah to i8*
13*9880d681SAndroid Build Coastguard Worker  call void @llvm.memcpy.p0i8.p0i8.i32(i8* bitcast ([4 x i32]* @G1 to i8*), i8* %tmp3, i32 16, i32 1, i1 false)
14*9880d681SAndroid Build Coastguard Worker  call void @llvm.memset.p0i8.i32(i8* getelementptr inbounds ([58 x i8], [58 x i8]* @G0, i32 0, i32 0), i8 17, i32 58, i32 1, i1 false)
15*9880d681SAndroid Build Coastguard Worker  ret void
16*9880d681SAndroid Build Coastguard Worker}
17*9880d681SAndroid Build Coastguard Worker
18*9880d681SAndroid Build Coastguard Worker@G0_as1 = internal addrspace(1) global [58 x i8] c"asdlfkajsdlfkajsd;lfkajds;lfkjasd;flkajsd;lkfja;sdlkfjasd\00"         ; <[58 x i8]*> [#uses=1]
19*9880d681SAndroid Build Coastguard Worker@G1_as1 = internal addrspace(1) global [4 x i32] [ i32 1, i32 2, i32 3, i32 4 ]          ; <[4 x i32]*> [#uses=1]
20*9880d681SAndroid Build Coastguard Worker
21*9880d681SAndroid Build Coastguard Workerdefine void @foo_as1() {
22*9880d681SAndroid Build Coastguard Worker  %Blah = alloca [58 x i8]
23*9880d681SAndroid Build Coastguard Worker  %tmp3 = bitcast [58 x i8]* %Blah to i8*
24*9880d681SAndroid Build Coastguard Worker  call void @llvm.memcpy.p0i8.p0i8.i32(i8* addrspacecast ([4 x i32] addrspace(1)* @G1_as1 to i8*), i8* %tmp3, i32 16, i32 1, i1 false)
25*9880d681SAndroid Build Coastguard Worker  call void @llvm.memset.p1i8.i32(i8 addrspace(1)* getelementptr inbounds ([58 x i8], [58 x i8] addrspace(1)* @G0_as1, i32 0, i32 0), i8 17, i32 58, i32 1, i1 false)
26*9880d681SAndroid Build Coastguard Worker  ret void
27*9880d681SAndroid Build Coastguard Worker}
28*9880d681SAndroid Build Coastguard Worker
29*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
30*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) nounwind
31*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.memset.p1i8.i32(i8 addrspace(1)* nocapture, i8, i32, i32, i1) nounwind