xref: /aosp_15_r20/external/llvm/test/Transforms/CodeGenPrepare/invariant.group.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: opt -codegenprepare -S < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker@tmp = global i8 0
4*9880d681SAndroid Build Coastguard Worker
5*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: define void @foo() {
6*9880d681SAndroid Build Coastguard Workerdefine void @foo() {
7*9880d681SAndroid Build Coastguard Workerenter:
8*9880d681SAndroid Build Coastguard Worker  ; CHECK-NOT: !invariant.group
9*9880d681SAndroid Build Coastguard Worker  ; CHECK-NOT: @llvm.invariant.group.barrier(
10*9880d681SAndroid Build Coastguard Worker  ; CHECK: %val = load i8, i8* @tmp
11*9880d681SAndroid Build Coastguard Worker  %val = load i8, i8* @tmp, !invariant.group !0
12*9880d681SAndroid Build Coastguard Worker  %ptr = call i8* @llvm.invariant.group.barrier(i8* @tmp)
13*9880d681SAndroid Build Coastguard Worker
14*9880d681SAndroid Build Coastguard Worker  ; CHECK: store i8 42, i8* @tmp
15*9880d681SAndroid Build Coastguard Worker  store i8 42, i8* %ptr, !invariant.group !0
16*9880d681SAndroid Build Coastguard Worker
17*9880d681SAndroid Build Coastguard Worker  ret void
18*9880d681SAndroid Build Coastguard Worker}
19*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: }
20*9880d681SAndroid Build Coastguard Worker
21*9880d681SAndroid Build Coastguard Workerdeclare i8* @llvm.invariant.group.barrier(i8*)
22*9880d681SAndroid Build Coastguard Worker
23*9880d681SAndroid Build Coastguard Worker!0 = !{!"something"}