xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/longlong-deadload.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -march=x86 | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker; This should not load or store the top part of *P.
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Workerdefine void @test(i64* %P) nounwind  {
5*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test:
6*9880d681SAndroid Build Coastguard Worker; CHECK: movl 4(%esp), %[[REGISTER:.*]]
7*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: 4(%[[REGISTER]])
8*9880d681SAndroid Build Coastguard Worker; CHECK: ret
9*9880d681SAndroid Build Coastguard Worker	%tmp1 = load i64, i64* %P, align 8		; <i64> [#uses=1]
10*9880d681SAndroid Build Coastguard Worker	%tmp2 = xor i64 %tmp1, 1		; <i64> [#uses=1]
11*9880d681SAndroid Build Coastguard Worker	store i64 %tmp2, i64* %P, align 8
12*9880d681SAndroid Build Coastguard Worker	ret void
13*9880d681SAndroid Build Coastguard Worker}
14*9880d681SAndroid Build Coastguard Worker
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