derek.holloway
7502bf64a4
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36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
// RUN: %clang_cc1 %s -emit-llvm -o - -triple=thumbv7m-none--eabi -target-cpu cortex-m3 | FileCheck %s
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int i;
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long long l;
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typedef enum memory_order {
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memory_order_relaxed, memory_order_consume, memory_order_acquire,
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memory_order_release, memory_order_acq_rel, memory_order_seq_cst
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} memory_order;
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void test_presence(void)
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{
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// CHECK-LABEL: @test_presence
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// CHECK: atomicrmw add ptr {{.*}} seq_cst, align 4
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__atomic_fetch_add(&i, 1, memory_order_seq_cst);
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// CHECK: atomicrmw sub ptr {{.*}} seq_cst, align 4
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__atomic_fetch_sub(&i, 1, memory_order_seq_cst);
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// CHECK: load atomic i32, ptr {{.*}} seq_cst, align 4
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int r;
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__atomic_load(&i, &r, memory_order_seq_cst);
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// CHECK: store atomic i32 {{.*}} seq_cst, align 4
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r = 0;
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__atomic_store(&i, &r, memory_order_seq_cst);
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// CHECK: atomicrmw add ptr {{.*}} seq_cst, align 8
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__atomic_fetch_add(&l, 1, memory_order_seq_cst);
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// CHECK: atomicrmw sub ptr {{.*}} seq_cst, align 8
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__atomic_fetch_sub(&l, 1, memory_order_seq_cst);
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// CHECK: load atomic i64, ptr {{.*}} seq_cst, align 8
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long long rl;
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__atomic_load(&l, &rl, memory_order_seq_cst);
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// CHECK: store atomic i64 {{.*}}, ptr {{.*}} seq_cst, align 8
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rl = 0;
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__atomic_store(&l, &rl, memory_order_seq_cst);
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}
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