xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/atomic-load-store-wide.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mcpu=corei7 -march=x86 -verify-machineinstrs | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker; 64-bit load/store on x86-32
4*9880d681SAndroid Build Coastguard Worker; FIXME: The generated code can be substantially improved.
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Workerdefine void @test1(i64* %ptr, i64 %val1) {
7*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test1
8*9880d681SAndroid Build Coastguard Worker; CHECK: lock cmpxchg8b
9*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: jne
10*9880d681SAndroid Build Coastguard Worker  store atomic i64 %val1, i64* %ptr seq_cst, align 8
11*9880d681SAndroid Build Coastguard Worker  ret void
12*9880d681SAndroid Build Coastguard Worker}
13*9880d681SAndroid Build Coastguard Worker
14*9880d681SAndroid Build Coastguard Workerdefine i64 @test2(i64* %ptr) {
15*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test2
16*9880d681SAndroid Build Coastguard Worker; CHECK: lock cmpxchg8b
17*9880d681SAndroid Build Coastguard Worker  %val = load atomic i64, i64* %ptr seq_cst, align 8
18*9880d681SAndroid Build Coastguard Worker  ret i64 %val
19*9880d681SAndroid Build Coastguard Worker}
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