180 lines
9.2 KiB
C++
180 lines
9.2 KiB
C++
// Use of NAN macro will trigger a warning "infinity defined in macro" because
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// on Windows the NAN macro is defined using INFINITY. See below.
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// RUN: %clang_cc1 -x c++ -verify=no-inf-no-nan -triple powerpc64le-unknown-unknown %s \
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// RUN: -menable-no-infs -menable-no-nans
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// RUN: %clang_cc1 -x c++ -verify=no-fast -triple powerpc64le-unknown-unknown %s
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// RUN: %clang_cc1 -x c++ -verify=no-inf -triple powerpc64le-unknown-unknown %s \
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// RUN: -menable-no-infs
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// RUN: %clang_cc1 -x c++ -verify=no-nan -triple powerpc64le-unknown-unknown %s \
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// RUN: -menable-no-nans
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// no-fast-no-diagnostics
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int isunorderedf (float x, float y);
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extern "C++" {
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namespace std __attribute__((__visibility__("default"))) {
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bool
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isinf(float __x);
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bool
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isinf(double __x);
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bool
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isinf(long double __x);
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bool
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isnan(float __x);
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bool
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isnan(double __x);
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bool
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isnan(long double __x);
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bool
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isfinite(float __x);
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bool
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isfinite(double __x);
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bool
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isfinte(long double __x);
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bool
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isunordered(float __x, float __y);
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bool
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isunordered(double __x, double __y);
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bool
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isunordered(long double __x, long double __y);
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} // namespace )
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}
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#define INFINITY ((float)(1e+300 * 1e+300))
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#define NAN (-(float)(INFINITY * 0.0F))
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template <class _Ty>
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class numeric_limits {
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public:
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[[nodiscard]] static constexpr _Ty infinity() noexcept {
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return _Ty();
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}
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};
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template <>
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class numeric_limits<float> {
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public:
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[[nodiscard]] static constexpr float infinity() noexcept {
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return __builtin_huge_val();
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}
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};
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template <>
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class numeric_limits<double> {
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public:
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[[nodiscard]] static constexpr double infinity() noexcept {
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return __builtin_huge_val();
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}
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};
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int compareit(float a, float b) {
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volatile int i, j, k, l, m, n, o, p;
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// no-inf-no-nan-warning@+2 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+1 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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i = a == INFINITY;
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// no-inf-no-nan-warning@+2 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+1 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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j = INFINITY == a;
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// no-inf-no-nan-warning@+4 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-no-nan-warning@+3 {{use of NaN via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+2 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-nan-warning@+1 {{use of NaN via a macro is undefined behavior due to the currently enabled floating-point options}}
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i = a == NAN;
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// no-inf-no-nan-warning@+4 {{use of NaN via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-no-nan-warning@+3 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+2 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-nan-warning@+1 {{use of NaN via a macro is undefined behavior due to the currently enabled floating-point options}}
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j = NAN == a;
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// no-inf-no-nan-warning@+2 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+1 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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j = INFINITY <= a;
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// no-inf-no-nan-warning@+2 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+1 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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j = INFINITY < a;
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// no-inf-no-nan-warning@+4 {{use of NaN via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-no-nan-warning@+3 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+2 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-nan-warning@+1 {{use of NaN via a macro is undefined behavior due to the currently enabled floating-point options}}
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j = a > NAN;
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// no-inf-no-nan-warning@+4 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-no-nan-warning@+3 {{use of NaN via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+2 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-nan-warning@+1 {{use of NaN via a macro is undefined behavior due to the currently enabled floating-point options}}
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j = a >= NAN;
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// no-inf-no-nan-warning@+2 {{use of infinity is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+1 {{use of infinity is undefined behavior due to the currently enabled floating-point options}}
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k = std::isinf(a);
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// no-inf-no-nan-warning@+2 {{use of NaN is undefined behavior due to the currently enabled floating-point options}}
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// no-nan-warning@+1 {{use of NaN is undefined behavior due to the currently enabled floating-point options}}
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l = std::isnan(a);
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// no-inf-no-nan-warning@+2 {{use of infinity is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+1 {{use of infinity is undefined behavior due to the currently enabled floating-point options}}
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o = std::isfinite(a);
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// no-inf-no-nan-warning@+2 {{use of infinity is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+1 {{use of infinity is undefined behavior due to the currently enabled floating-point options}}
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m = __builtin_isinf(a);
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// no-inf-no-nan-warning@+2 {{use of NaN is undefined behavior due to the currently enabled floating-point options}}
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// no-nan-warning@+1 {{use of NaN is undefined behavior due to the currently enabled floating-point options}}
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n = __builtin_isnan(a);
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// no-inf-no-nan-warning@+2 {{use of infinity is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+1 {{use of infinity is undefined behavior due to the currently enabled floating-point options}}
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p = __builtin_isfinite(a);
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// These should NOT warn, since they are not using NaN or infinity.
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j = a > 1.1;
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j = b < 1.1;
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j = a >= 1.1;
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j = b <= 1.1;
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j = isunorderedf(a, b);
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// no-inf-no-nan-warning@+4 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point option}}
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// no-inf-no-nan-warning@+3 {{use of NaN via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+2 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-nan-warning@+1 {{use of NaN via a macro is undefined behavior due to the currently enabled floating-point options}}
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j = isunorderedf(a, NAN);
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// no-inf-no-nan-warning@+2 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+1 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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j = isunorderedf(a, INFINITY);
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// no-inf-no-nan-warning@+6 {{use of NaN via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-no-nan-warning@+5 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-no-nan-warning@+4 {{use of NaN is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+3 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-nan-warning@+2 {{use of NaN via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-nan-warning@+1 {{use of NaN is undefined behavior due to the currently enabled floating-point options}}
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i = std::isunordered(a, NAN);
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// no-inf-no-nan-warning@+4 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-no-nan-warning@+3 {{use of NaN is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+2 {{use of infinity via a macro is undefined behavior due to the currently enabled floating-point options}}
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// no-nan-warning@+1 {{use of NaN is undefined behavior due to the currently enabled floating-point options}}
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i = std::isunordered(a, INFINITY);
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// no-inf-no-nan-warning@+2 {{use of infinity is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+1 {{use of infinity is undefined behavior due to the currently enabled floating-point options}}
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double y = i * numeric_limits<double>::infinity();
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// no-inf-no-nan-warning@+2 {{use of infinity is undefined behavior due to the currently enabled floating-point options}}
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// no-inf-warning@+1 {{use of infinity is undefined behavior due to the currently enabled floating-point options}}
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j = numeric_limits<float>::infinity();
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return 0;
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}
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