derek.holloway
7502bf64a4
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31 lines
1.0 KiB
C
31 lines
1.0 KiB
C
// RUN: %clang_cc1 -triple x86_64-linux-gnu -target-cpu core2 %s -emit-llvm -o - | FileCheck %s
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// All atomics up to 16 bytes should be emitted inline on x86_64. The
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// backend can reform __sync_whatever calls if necessary (e.g. the CPU
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// doesn't have cmpxchg16b).
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__int128 test_sync_call(__int128 *addr, __int128 val) {
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// CHECK-LABEL: @test_sync_call
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// CHECK: atomicrmw add ptr {{.*}} seq_cst, align 16
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return __sync_fetch_and_add(addr, val);
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}
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__int128 test_c11_call(_Atomic __int128 *addr, __int128 val) {
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// CHECK-LABEL: @test_c11_call
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// CHECK: atomicrmw sub ptr {{.*}} monotonic, align 16
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return __c11_atomic_fetch_sub(addr, val, 0);
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}
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__int128 test_atomic_call(__int128 *addr, __int128 val) {
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// CHECK-LABEL: @test_atomic_call
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// CHECK: atomicrmw or ptr {{.*}} monotonic, align 16
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return __atomic_fetch_or(addr, val, 0);
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}
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__int128 test_expression(_Atomic __int128 *addr) {
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// CHECK-LABEL: @test_expression
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// CHECK: atomicrmw and ptr {{.*}} seq_cst, align 16
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*addr &= 1;
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return 0;
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}
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