xref: /aosp_15_r20/external/llvm/test/Transforms/GlobalOpt/invariant.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt -globalopt -S -o - < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
4*9880d681SAndroid Build Coastguard Workertarget triple = "x86_64-unknown-linux-gnu"
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Workerdeclare {}* @llvm.invariant.start(i64 %size, i8* nocapture %ptr)
7*9880d681SAndroid Build Coastguard Worker
8*9880d681SAndroid Build Coastguard Workerdefine void @test1(i8* %ptr) {
9*9880d681SAndroid Build Coastguard Worker  call {}* @llvm.invariant.start(i64 4, i8* %ptr)
10*9880d681SAndroid Build Coastguard Worker  ret void
11*9880d681SAndroid Build Coastguard Worker}
12*9880d681SAndroid Build Coastguard Worker
13*9880d681SAndroid Build Coastguard Worker@object1 = global i32 0
14*9880d681SAndroid Build Coastguard Worker; CHECK: @object1 = constant i32 -1
15*9880d681SAndroid Build Coastguard Workerdefine void @ctor1() {
16*9880d681SAndroid Build Coastguard Worker  store i32 -1, i32* @object1
17*9880d681SAndroid Build Coastguard Worker  %A = bitcast i32* @object1 to i8*
18*9880d681SAndroid Build Coastguard Worker  call void @test1(i8* %A)
19*9880d681SAndroid Build Coastguard Worker  ret void
20*9880d681SAndroid Build Coastguard Worker}
21*9880d681SAndroid Build Coastguard Worker
22*9880d681SAndroid Build Coastguard Worker
23*9880d681SAndroid Build Coastguard Worker@object2 = global i32 0
24*9880d681SAndroid Build Coastguard Worker; CHECK: @object2 = global i32 0
25*9880d681SAndroid Build Coastguard Workerdefine void @ctor2() {
26*9880d681SAndroid Build Coastguard Worker  store i32 -1, i32* @object2
27*9880d681SAndroid Build Coastguard Worker  %A = bitcast i32* @object2 to i8*
28*9880d681SAndroid Build Coastguard Worker  %B = call {}* @llvm.invariant.start(i64 4, i8* %A)
29*9880d681SAndroid Build Coastguard Worker  %C = bitcast {}* %B to i8*
30*9880d681SAndroid Build Coastguard Worker  ret void
31*9880d681SAndroid Build Coastguard Worker}
32*9880d681SAndroid Build Coastguard Worker
33*9880d681SAndroid Build Coastguard Worker
34*9880d681SAndroid Build Coastguard Worker@object3 = global i32 0
35*9880d681SAndroid Build Coastguard Worker; CHECK: @object3 = global i32 -1
36*9880d681SAndroid Build Coastguard Workerdefine void @ctor3() {
37*9880d681SAndroid Build Coastguard Worker  store i32 -1, i32* @object3
38*9880d681SAndroid Build Coastguard Worker  %A = bitcast i32* @object3 to i8*
39*9880d681SAndroid Build Coastguard Worker  call {}* @llvm.invariant.start(i64 3, i8* %A)
40*9880d681SAndroid Build Coastguard Worker  ret void
41*9880d681SAndroid Build Coastguard Worker}
42*9880d681SAndroid Build Coastguard Worker
43*9880d681SAndroid Build Coastguard Worker
44*9880d681SAndroid Build Coastguard Worker@object4 = global i32 0
45*9880d681SAndroid Build Coastguard Worker; CHECK: @object4 = global i32 -1
46*9880d681SAndroid Build Coastguard Workerdefine void @ctor4() {
47*9880d681SAndroid Build Coastguard Worker  store i32 -1, i32* @object4
48*9880d681SAndroid Build Coastguard Worker  %A = bitcast i32* @object4 to i8*
49*9880d681SAndroid Build Coastguard Worker  call {}* @llvm.invariant.start(i64 -1, i8* %A)
50*9880d681SAndroid Build Coastguard Worker  ret void
51*9880d681SAndroid Build Coastguard Worker}
52*9880d681SAndroid Build Coastguard Worker
53*9880d681SAndroid Build Coastguard Worker
54*9880d681SAndroid Build Coastguard Worker@llvm.global_ctors = appending constant
55*9880d681SAndroid Build Coastguard Worker  [4 x { i32, void ()* }]
56*9880d681SAndroid Build Coastguard Worker  [ { i32, void ()* } { i32 65535, void ()* @ctor1 },
57*9880d681SAndroid Build Coastguard Worker    { i32, void ()* } { i32 65535, void ()* @ctor2 },
58*9880d681SAndroid Build Coastguard Worker    { i32, void ()* } { i32 65535, void ()* @ctor3 },
59*9880d681SAndroid Build Coastguard Worker    { i32, void ()* } { i32 65535, void ()* @ctor4 } ]
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