xref: /aosp_15_r20/external/llvm/test/CodeGen/AMDGPU/promote-alloca-lifetime.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -amdgpu-promote-alloca %s | FileCheck -check-prefix=OPT %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.lifetime.start(i64, i8* nocapture) #0
4*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.lifetime.end(i64, i8* nocapture) #0
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Worker; OPT-LABEL: @use_lifetime_promotable_lds(
7*9880d681SAndroid Build Coastguard Worker; OPT-NOT: alloca i32
8*9880d681SAndroid Build Coastguard Worker; OPT-NOT: llvm.lifetime
9*9880d681SAndroid Build Coastguard Worker; OPT: store i32 %tmp3, i32 addrspace(3)*
10*9880d681SAndroid Build Coastguard Workerdefine void @use_lifetime_promotable_lds(i32 addrspace(1)* %arg) #2 {
11*9880d681SAndroid Build Coastguard Workerbb:
12*9880d681SAndroid Build Coastguard Worker  %tmp = alloca i32, align 4
13*9880d681SAndroid Build Coastguard Worker  %tmp1 = bitcast i32* %tmp to i8*
14*9880d681SAndroid Build Coastguard Worker  call void @llvm.lifetime.start(i64 4, i8* %tmp1)
15*9880d681SAndroid Build Coastguard Worker  %tmp2 = getelementptr inbounds i32, i32 addrspace(1)* %arg, i64 1
16*9880d681SAndroid Build Coastguard Worker  %tmp3 = load i32, i32 addrspace(1)* %tmp2
17*9880d681SAndroid Build Coastguard Worker  store i32 %tmp3, i32* %tmp
18*9880d681SAndroid Build Coastguard Worker  call void @llvm.lifetime.end(i64 4, i8* %tmp1)
19*9880d681SAndroid Build Coastguard Worker  ret void
20*9880d681SAndroid Build Coastguard Worker}
21*9880d681SAndroid Build Coastguard Worker
22*9880d681SAndroid Build Coastguard Workerattributes #0 = { argmemonly nounwind }
23*9880d681SAndroid Build Coastguard Workerattributes #1 = { nounwind readnone }
24*9880d681SAndroid Build Coastguard Workerattributes #2 = { nounwind }
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