68 lines
2.8 KiB
C++
68 lines
2.8 KiB
C++
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// RUN: %clang_cc1 -std=c++98 -Wno-constant-evaluated -triple x86_64-linux -include %s -verify %s -emit-llvm -o - | FileCheck %s
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// RUN: %clang_cc1 -std=c++98 -Wno-constant-evaluated -triple x86_64-linux -emit-pch %s -o %t
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// RUN: %clang_cc1 -std=c++98 -Wno-constant-evaluated -triple x86_64-linux -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s
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// RUN: %clang_cc1 -std=c++11 -Wno-constant-evaluated -triple x86_64-linux -include %s -verify %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CXX11
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// RUN: %clang_cc1 -std=c++11 -Wno-constant-evaluated -triple x86_64-linux -emit-pch %s -o %t-cxx11
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// RUN: %clang_cc1 -std=c++11 -Wno-constant-evaluated -triple x86_64-linux -include-pch %t-cxx11 -verify %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CXX11
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// RUN: %clang_cc1 -std=c++20 -Wno-constant-evaluated -triple x86_64-linux -include %s -verify %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CXX11
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// RUN: %clang_cc1 -std=c++20 -Wno-constant-evaluated -triple x86_64-linux -emit-pch %s -o %t-cxx11
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// RUN: %clang_cc1 -std=c++20 -Wno-constant-evaluated -triple x86_64-linux -include-pch %t-cxx11 -verify %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CXX11
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// expected-no-diagnostics
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#ifndef HEADER_INCLUDED
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#define HEADER_INCLUDED
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// CHECK-DAG: @a ={{.*}} global i8 1,
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// CHECK-DAG: @b ={{.*}} constant i8 1,
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// CXX11-DAG: @c ={{.*}} constant i8 1,
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// CHECK-DAG: @d ={{.*}} global float 1.000000e+00
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// CHECK-DAG: @e ={{.*}} constant float 1.000000e+00
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bool a = __builtin_is_constant_evaluated();
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extern const bool b = __builtin_is_constant_evaluated();
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#if __cplusplus >= 201103L
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extern constexpr bool c = __builtin_is_constant_evaluated();
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#endif
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float d = __builtin_is_constant_evaluated();
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extern const float e = __builtin_is_constant_evaluated();
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void g(...);
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// CHECK-LABEL: define {{.*}} @_Z1fv(
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// CHECK: store i8 0, i8* %[[A:.*]],
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// CHECK: store i8 1, i8* %[[B:.*]],
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// CXX11: store i8 1, i8* %[[C:.*]],
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// CHECK: store float 0.000000e+00, float* %[[D:.*]],
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// CHECK: store float 0.000000e+00, float* %[[E:.*]],
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// CHECK: load i8, i8* %[[A]],
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// CHECK: call {{.*}} @_Z1gz(i32 %{{[^,]+}}, i32 1
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// CXX11-SAME: , i32 1
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// CHECK-SAME: , double %{{[^,]+}}, double 0.000000e+00)
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void f() {
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bool a = __builtin_is_constant_evaluated();
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const bool b = __builtin_is_constant_evaluated();
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#if __cplusplus >= 201103L
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constexpr bool c = __builtin_is_constant_evaluated();
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#endif
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float d = __builtin_is_constant_evaluated();
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const float e = __builtin_is_constant_evaluated();
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g(a, b
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#if __cplusplus >= 201103L
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, c
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#endif
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, d, e);
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}
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#else
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_Static_assert(b, "");
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#if __cplusplus >= 201103L
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static_assert(c, "");
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#endif
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_Static_assert(__builtin_constant_p(1) ? e == 1.0f : false, "");
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#endif
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