derek.holloway
7502bf64a4
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34 lines
1.2 KiB
LLVM
34 lines
1.2 KiB
LLVM
; RUN: llc -mtriple=x86_64 < %s | FileCheck %s
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; Quick test to ensure that atomics which are not naturally-aligned
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; emit unsized libcalls, and aren't emitted as native instructions or
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; sized libcalls.
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define void @test_i32(ptr %a) nounwind {
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; CHECK-LABEL: test_i32:
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; CHECK: callq __atomic_load
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; CHECK: callq __atomic_store
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; CHECK: callq __atomic_exchange
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; CHECK: callq __atomic_compare_exchange
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; CHECK: callq __atomic_compare_exchange
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%t0 = load atomic i32, ptr %a seq_cst, align 2
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store atomic i32 1, ptr %a seq_cst, align 2
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%t1 = atomicrmw xchg ptr %a, i32 1 seq_cst, align 2
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%t3 = atomicrmw add ptr %a, i32 2 seq_cst, align 2
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%t2 = cmpxchg ptr %a, i32 0, i32 1 seq_cst seq_cst, align 2
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ret void
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}
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define void @test_i128(ptr %a) nounwind {
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; CHECK-LABEL: test_i128:
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; CHECK: callq __atomic_load
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; CHECK: callq __atomic_store
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; CHECK: callq __atomic_exchange
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; CHECK: callq __atomic_compare_exchange
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%t0 = load atomic i128, ptr %a seq_cst, align 8
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store atomic i128 1, ptr %a seq_cst, align 8
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%t1 = atomicrmw xchg ptr %a, i128 1 seq_cst, align 8
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%t2 = atomicrmw add ptr %a, i128 2 seq_cst, align 8
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%t3 = cmpxchg ptr %a, i128 0, i128 1 seq_cst seq_cst, align 8
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ret void
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}
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