derek.holloway
7502bf64a4
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69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
// RUN: %clang_cc1 %s -std=c++11 -emit-llvm -o - -triple=x86_64-linux-gnu | FileCheck %s
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// RUN: %clang_cc1 %s -std=c++11 -emit-llvm -o - -triple=x86_64-linux-gnu -target-cpu core2 | FileCheck %s --check-prefix=CORE2
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// Check the atomic code generation for cpu targets w/wo cx16 support.
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struct alignas(8) AM8 {
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int f1, f2;
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};
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AM8 m8;
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AM8 load8() {
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AM8 am;
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// CHECK-LABEL: @_Z5load8v
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// CHECK: load atomic i64, {{.*}} monotonic, align 8
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// CORE2-LABEL: @_Z5load8v
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// CORE2: load atomic i64, {{.*}} monotonic, align 8
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__atomic_load(&m8, &am, 0);
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return am;
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}
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AM8 s8;
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void store8() {
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// CHECK-LABEL: @_Z6store8v
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// CHECK: store atomic i64 {{.*}} monotonic, align 8
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// CORE2-LABEL: @_Z6store8v
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// CORE2: store atomic i64 {{.*}} monotonic, align 8
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__atomic_store(&m8, &s8, 0);
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}
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bool cmpxchg8() {
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AM8 am;
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// CHECK-LABEL: @_Z8cmpxchg8v
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// CHECK: cmpxchg ptr {{.*}} monotonic, align 8
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// CORE2-LABEL: @_Z8cmpxchg8v
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// CORE2: cmpxchg ptr {{.*}} monotonic, align 8
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return __atomic_compare_exchange(&m8, &s8, &am, 0, 0, 0);
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}
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struct alignas(16) AM16 {
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long f1, f2;
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};
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AM16 m16;
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AM16 load16() {
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AM16 am;
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// CHECK-LABEL: @_Z6load16v
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// CHECK: load atomic i128, {{.*}} monotonic, align 16
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// CORE2-LABEL: @_Z6load16v
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// CORE2: load atomic i128, {{.*}} monotonic, align 16
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__atomic_load(&m16, &am, 0);
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return am;
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}
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AM16 s16;
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void store16() {
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// CHECK-LABEL: @_Z7store16v
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// CHECK: store atomic i128 {{.*}} monotonic, align 16
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// CORE2-LABEL: @_Z7store16v
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// CORE2: store atomic i128 {{.*}} monotonic, align 16
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__atomic_store(&m16, &s16, 0);
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}
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bool cmpxchg16() {
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AM16 am;
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// CHECK-LABEL: @_Z9cmpxchg16v
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// CHECK: cmpxchg ptr {{.*}} monotonic monotonic, align 16
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// CORE2-LABEL: @_Z9cmpxchg16v
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// CORE2: cmpxchg ptr {{.*}} monotonic monotonic, align 16
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return __atomic_compare_exchange(&m16, &s16, &am, 0, 0, 0);
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}
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