| // RUN: %clang_cc1 -Wno-string-plus-int -fexperimental-new-constant-interpreter %s -verify=expected,both |
| // RUN: %clang_cc1 -Wno-string-plus-int -fexperimental-new-constant-interpreter -triple i686 %s -verify=expected,both |
| // RUN: %clang_cc1 -Wno-string-plus-int -verify=ref,both %s -Wno-constant-evaluated |
| // RUN: %clang_cc1 -std=c++20 -Wno-string-plus-int -fexperimental-new-constant-interpreter %s -verify=expected,both |
| // RUN: %clang_cc1 -std=c++20 -Wno-string-plus-int -fexperimental-new-constant-interpreter -triple i686 %s -verify=expected,both |
| // RUN: %clang_cc1 -std=c++20 -Wno-string-plus-int -verify=ref,both %s -Wno-constant-evaluated |
| // RUN: %clang_cc1 -triple avr -std=c++20 -Wno-string-plus-int -fexperimental-new-constant-interpreter %s -verify=expected,both |
| // RUN: %clang_cc1 -triple avr -std=c++20 -Wno-string-plus-int -verify=ref,both %s -Wno-constant-evaluated |
| |
| |
| namespace strcmp { |
| constexpr char kFoobar[6] = {'f','o','o','b','a','r'}; |
| constexpr char kFoobazfoobar[12] = {'f','o','o','b','a','z','f','o','o','b','a','r'}; |
| |
| static_assert(__builtin_strcmp("", "") == 0, ""); |
| static_assert(__builtin_strcmp("abab", "abab") == 0, ""); |
| static_assert(__builtin_strcmp("abab", "abba") == -1, ""); |
| static_assert(__builtin_strcmp("abab", "abaa") == 1, ""); |
| static_assert(__builtin_strcmp("ababa", "abab") == 1, ""); |
| static_assert(__builtin_strcmp("abab", "ababa") == -1, ""); |
| static_assert(__builtin_strcmp("a\203", "a") == 1, ""); |
| static_assert(__builtin_strcmp("a\203", "a\003") == 1, ""); |
| static_assert(__builtin_strcmp("abab\0banana", "abab") == 0, ""); |
| static_assert(__builtin_strcmp("abab", "abab\0banana") == 0, ""); |
| static_assert(__builtin_strcmp("abab\0banana", "abab\0canada") == 0, ""); |
| static_assert(__builtin_strcmp(0, "abab") == 0, ""); // both-error {{not an integral constant}} \ |
| // both-note {{dereferenced null}} |
| static_assert(__builtin_strcmp("abab", 0) == 0, ""); // both-error {{not an integral constant}} \ |
| // both-note {{dereferenced null}} |
| |
| static_assert(__builtin_strcmp(kFoobar, kFoobazfoobar) == -1, ""); |
| static_assert(__builtin_strcmp(kFoobar, kFoobazfoobar + 6) == 0, ""); // both-error {{not an integral constant}} \ |
| // both-note {{dereferenced one-past-the-end}} |
| |
| /// Used to assert because we're passing a dummy pointer to |
| /// __builtin_strcmp() when evaluating the return statement. |
| constexpr bool char_memchr_mutable() { |
| char buffer[] = "mutable"; |
| return __builtin_strcmp(buffer, "mutable") == 0; |
| } |
| static_assert(char_memchr_mutable(), ""); |
| } |
| |
| /// Copied from constant-expression-cxx11.cpp |
| namespace strlen { |
| constexpr const char *a = "foo\0quux"; |
| constexpr char b[] = "foo\0quux"; |
| constexpr int f() { return 'u'; } |
| constexpr char c[] = { 'f', 'o', 'o', 0, 'q', f(), 'u', 'x', 0 }; |
| |
| static_assert(__builtin_strlen("foo") == 3, ""); |
| static_assert(__builtin_strlen("foo\0quux") == 3, ""); |
| static_assert(__builtin_strlen("foo\0quux" + 4) == 4, ""); |
| |
| constexpr bool check(const char *p) { |
| return __builtin_strlen(p) == 3 && |
| __builtin_strlen(p + 1) == 2 && |
| __builtin_strlen(p + 2) == 1 && |
| __builtin_strlen(p + 3) == 0 && |
| __builtin_strlen(p + 4) == 4 && |
| __builtin_strlen(p + 5) == 3 && |
| __builtin_strlen(p + 6) == 2 && |
| __builtin_strlen(p + 7) == 1 && |
| __builtin_strlen(p + 8) == 0; |
| } |
| |
| static_assert(check(a), ""); |
| static_assert(check(b), ""); |
| static_assert(check(c), ""); |
| |
| constexpr int over1 = __builtin_strlen(a + 9); // both-error {{constant expression}} \ |
| // both-note {{one-past-the-end}} |
| constexpr int over2 = __builtin_strlen(b + 9); // both-error {{constant expression}} \ |
| // both-note {{one-past-the-end}} |
| constexpr int over3 = __builtin_strlen(c + 9); // both-error {{constant expression}} \ |
| // both-note {{one-past-the-end}} |
| |
| constexpr int under1 = __builtin_strlen(a - 1); // both-error {{constant expression}} \ |
| // both-note {{cannot refer to element -1}} |
| constexpr int under2 = __builtin_strlen(b - 1); // both-error {{constant expression}} \ |
| // both-note {{cannot refer to element -1}} |
| constexpr int under3 = __builtin_strlen(c - 1); // both-error {{constant expression}} \ |
| // both-note {{cannot refer to element -1}} |
| |
| constexpr char d[] = { 'f', 'o', 'o' }; // no nul terminator. |
| constexpr int bad = __builtin_strlen(d); // both-error {{constant expression}} \ |
| // both-note {{one-past-the-end}} |
| } |
| |
| namespace nan { |
| constexpr double NaN1 = __builtin_nan(""); |
| |
| /// The current interpreter does not accept this, but it should. |
| constexpr float NaN2 = __builtin_nans([](){return "0xAE98";}()); // ref-error {{must be initialized by a constant expression}} |
| #if __cplusplus < 201703L |
| // expected-error@-2 {{must be initialized by a constant expression}} |
| #endif |
| |
| constexpr double NaN3 = __builtin_nan("foo"); // both-error {{must be initialized by a constant expression}} |
| constexpr float NaN4 = __builtin_nanf(""); |
| //constexpr long double NaN5 = __builtin_nanf128(""); |
| |
| /// FIXME: This should be accepted by the current interpreter as well. |
| constexpr char f[] = {'0', 'x', 'A', 'E', '\0'}; |
| constexpr double NaN6 = __builtin_nan(f); // ref-error {{must be initialized by a constant expression}} |
| |
| /// FIXME: Current interpreter misses diagnostics. |
| constexpr char f2[] = {'0', 'x', 'A', 'E'}; /// No trailing 0 byte. |
| constexpr double NaN7 = __builtin_nan(f2); // both-error {{must be initialized by a constant expression}} \ |
| // expected-note {{read of dereferenced one-past-the-end pointer}} |
| static_assert(!__builtin_issignaling(__builtin_nan("")), ""); |
| static_assert(__builtin_issignaling(__builtin_nans("")), ""); |
| } |
| |
| namespace fmin { |
| constexpr float f1 = __builtin_fmin(1.0, 2.0f); |
| static_assert(f1 == 1.0f, ""); |
| |
| constexpr float min = __builtin_fmin(__builtin_nan(""), 1); |
| static_assert(min == 1, ""); |
| constexpr float min2 = __builtin_fmin(1, __builtin_nan("")); |
| static_assert(min2 == 1, ""); |
| constexpr float min3 = __builtin_fmin(__builtin_inf(), __builtin_nan("")); |
| static_assert(min3 == __builtin_inf(), ""); |
| } |
| |
| namespace inf { |
| static_assert(__builtin_isinf(__builtin_inf()), ""); |
| static_assert(!__builtin_isinf(1.0), ""); |
| |
| static_assert(__builtin_isfinite(1.0), ""); |
| static_assert(!__builtin_isfinite(__builtin_inf()), ""); |
| |
| static_assert(__builtin_isnormal(1.0), ""); |
| static_assert(!__builtin_isnormal(__builtin_inf()), ""); |
| |
| #ifndef __AVR__ |
| static_assert(__builtin_issubnormal(0x1p-1070), ""); |
| #endif |
| static_assert(!__builtin_issubnormal(__builtin_inf()), ""); |
| |
| static_assert(__builtin_iszero(0.0), ""); |
| static_assert(!__builtin_iszero(__builtin_inf()), ""); |
| |
| static_assert(__builtin_issignaling(__builtin_nans("")), ""); |
| static_assert(!__builtin_issignaling(__builtin_inf()), ""); |
| } |
| |
| namespace isfpclass { |
| char isfpclass_inf_pos_0[__builtin_isfpclass(__builtin_inf(), 0x0200) ? 1 : -1]; // fcPosInf |
| char isfpclass_inf_pos_1[!__builtin_isfpclass(__builtin_inff(), 0x0004) ? 1 : -1]; // fcNegInf |
| char isfpclass_inf_pos_2[__builtin_isfpclass(__builtin_infl(), 0x0207) ? 1 : -1]; // fcSNan|fcQNan|fcNegInf|fcPosInf |
| char isfpclass_inf_pos_3[!__builtin_isfpclass(__builtin_inf(), 0x01F8) ? 1 : -1]; // fcFinite |
| char isfpclass_pos_0 [__builtin_isfpclass(1.0, 0x0100) ? 1 : -1]; // fcPosNormal |
| char isfpclass_pos_1 [!__builtin_isfpclass(1.0f, 0x0008) ? 1 : -1]; // fcNegNormal |
| char isfpclass_pos_2 [__builtin_isfpclass(1.0L, 0x01F8) ? 1 : -1]; // fcFinite |
| char isfpclass_pos_3 [!__builtin_isfpclass(1.0, 0x0003) ? 1 : -1]; // fcSNan|fcQNan |
| #ifndef __AVR__ |
| char isfpclass_pdenorm_0[__builtin_isfpclass(1.0e-40f, 0x0080) ? 1 : -1]; // fcPosSubnormal |
| char isfpclass_pdenorm_1[__builtin_isfpclass(1.0e-310, 0x01F8) ? 1 : -1]; // fcFinite |
| char isfpclass_pdenorm_2[!__builtin_isfpclass(1.0e-40f, 0x003C) ? 1 : -1]; // fcNegative |
| char isfpclass_pdenorm_3[!__builtin_isfpclass(1.0e-310, 0x0207) ? 1 : -1]; // ~fcFinite |
| #endif |
| char isfpclass_pzero_0 [__builtin_isfpclass(0.0f, 0x0060) ? 1 : -1]; // fcZero |
| char isfpclass_pzero_1 [__builtin_isfpclass(0.0, 0x01F8) ? 1 : -1]; // fcFinite |
| char isfpclass_pzero_2 [!__builtin_isfpclass(0.0L, 0x0020) ? 1 : -1]; // fcNegZero |
| char isfpclass_pzero_3 [!__builtin_isfpclass(0.0, 0x0003) ? 1 : -1]; // fcNan |
| char isfpclass_nzero_0 [__builtin_isfpclass(-0.0f, 0x0060) ? 1 : -1]; // fcZero |
| char isfpclass_nzero_1 [__builtin_isfpclass(-0.0, 0x01F8) ? 1 : -1]; // fcFinite |
| char isfpclass_nzero_2 [!__builtin_isfpclass(-0.0L, 0x0040) ? 1 : -1]; // fcPosZero |
| char isfpclass_nzero_3 [!__builtin_isfpclass(-0.0, 0x0003) ? 1 : -1]; // fcNan |
| char isfpclass_ndenorm_0[__builtin_isfpclass(-1.0e-40f, 0x0010) ? 1 : -1]; // fcNegSubnormal |
| char isfpclass_ndenorm_2[!__builtin_isfpclass(-1.0e-40f, 0x03C0) ? 1 : -1]; // fcPositive |
| #ifndef __AVR__ |
| char isfpclass_ndenorm_1[__builtin_isfpclass(-1.0e-310, 0x01F8) ? 1 : -1]; // fcFinite |
| char isfpclass_ndenorm_3[!__builtin_isfpclass(-1.0e-310, 0x0207) ? 1 : -1]; // ~fcFinite |
| #endif |
| char isfpclass_neg_0 [__builtin_isfpclass(-1.0, 0x0008) ? 1 : -1]; // fcNegNormal |
| char isfpclass_neg_1 [!__builtin_isfpclass(-1.0f, 0x00100) ? 1 : -1]; // fcPosNormal |
| char isfpclass_neg_2 [__builtin_isfpclass(-1.0L, 0x01F8) ? 1 : -1]; // fcFinite |
| char isfpclass_neg_3 [!__builtin_isfpclass(-1.0, 0x0003) ? 1 : -1]; // fcSNan|fcQNan |
| char isfpclass_inf_neg_0[__builtin_isfpclass(-__builtin_inf(), 0x0004) ? 1 : -1]; // fcNegInf |
| char isfpclass_inf_neg_1[!__builtin_isfpclass(-__builtin_inff(), 0x0200) ? 1 : -1]; // fcPosInf |
| char isfpclass_inf_neg_2[__builtin_isfpclass(-__builtin_infl(), 0x0207) ? 1 : -1]; // ~fcFinite |
| char isfpclass_inf_neg_3[!__builtin_isfpclass(-__builtin_inf(), 0x03C0) ? 1 : -1]; // fcPositive |
| char isfpclass_qnan_0 [__builtin_isfpclass(__builtin_nan(""), 0x0002) ? 1 : -1]; // fcQNan |
| char isfpclass_qnan_1 [!__builtin_isfpclass(__builtin_nanf(""), 0x0001) ? 1 : -1]; // fcSNan |
| char isfpclass_qnan_2 [__builtin_isfpclass(__builtin_nanl(""), 0x0207) ? 1 : -1]; // ~fcFinite |
| char isfpclass_qnan_3 [!__builtin_isfpclass(__builtin_nan(""), 0x01F8) ? 1 : -1]; // fcFinite |
| char isfpclass_snan_0 [__builtin_isfpclass(__builtin_nansf(""), 0x0001) ? 1 : -1]; // fcSNan |
| char isfpclass_snan_1 [!__builtin_isfpclass(__builtin_nans(""), 0x0002) ? 1 : -1]; // fcQNan |
| char isfpclass_snan_2 [__builtin_isfpclass(__builtin_nansl(""), 0x0207) ? 1 : -1]; // ~fcFinite |
| char isfpclass_snan_3 [!__builtin_isfpclass(__builtin_nans(""), 0x01F8) ? 1 : -1]; // fcFinite |
| } |
| |
| namespace fpclassify { |
| char classify_nan [__builtin_fpclassify(+1, -1, -1, -1, -1, __builtin_nan(""))]; |
| char classify_snan [__builtin_fpclassify(+1, -1, -1, -1, -1, __builtin_nans(""))]; |
| char classify_inf [__builtin_fpclassify(-1, +1, -1, -1, -1, __builtin_inf())]; |
| char classify_neg_inf [__builtin_fpclassify(-1, +1, -1, -1, -1, -__builtin_inf())]; |
| char classify_normal [__builtin_fpclassify(-1, -1, +1, -1, -1, 1.539)]; |
| #ifndef __AVR__ |
| char classify_normal2 [__builtin_fpclassify(-1, -1, +1, -1, -1, 1e-307)]; |
| char classify_denorm [__builtin_fpclassify(-1, -1, -1, +1, -1, 1e-308)]; |
| char classify_denorm2 [__builtin_fpclassify(-1, -1, -1, +1, -1, -1e-308)]; |
| #endif |
| char classify_zero [__builtin_fpclassify(-1, -1, -1, -1, +1, 0.0)]; |
| char classify_neg_zero[__builtin_fpclassify(-1, -1, -1, -1, +1, -0.0)]; |
| char classify_subnorm [__builtin_fpclassify(-1, -1, -1, +1, -1, 1.0e-38f)]; |
| } |
| |
| namespace fabs { |
| static_assert(__builtin_fabs(-14.0) == 14.0, ""); |
| } |
| |
| namespace std { |
| struct source_location { |
| struct __impl { |
| unsigned int _M_line; |
| const char *_M_file_name; |
| signed char _M_column; |
| const char *_M_function_name; |
| }; |
| using BuiltinT = decltype(__builtin_source_location()); // OK. |
| }; |
| } |
| |
| namespace SourceLocation { |
| constexpr auto A = __builtin_source_location(); |
| static_assert(A->_M_line == __LINE__ -1, ""); |
| static_assert(A->_M_column == 22, ""); |
| static_assert(__builtin_strcmp(A->_M_function_name, "") == 0, ""); |
| static_assert(__builtin_strcmp(A->_M_file_name, __FILE__) == 0, ""); |
| |
| static_assert(__builtin_LINE() == __LINE__, ""); |
| |
| struct Foo { |
| int a = __builtin_LINE(); |
| }; |
| |
| static_assert(Foo{}.a == __LINE__, ""); |
| |
| struct AA { |
| int n = __builtin_LINE(); |
| }; |
| struct B { |
| AA a = {}; |
| }; |
| constexpr void f() { |
| constexpr B c = {}; |
| static_assert(c.a.n == __LINE__ - 1, ""); |
| } |
| } |
| |
| #define BITSIZE(x) (sizeof(x) * 8) |
| namespace popcount { |
| static_assert(__builtin_popcount(~0u) == __CHAR_BIT__ * sizeof(unsigned int), ""); |
| static_assert(__builtin_popcount(0) == 0, ""); |
| static_assert(__builtin_popcountl(~0ul) == __CHAR_BIT__ * sizeof(unsigned long), ""); |
| static_assert(__builtin_popcountl(0) == 0, ""); |
| static_assert(__builtin_popcountll(~0ull) == __CHAR_BIT__ * sizeof(unsigned long long), ""); |
| static_assert(__builtin_popcountll(0) == 0, ""); |
| static_assert(__builtin_popcountg((unsigned char)~0) == __CHAR_BIT__ * sizeof(unsigned char), ""); |
| static_assert(__builtin_popcountg((unsigned char)0) == 0, ""); |
| static_assert(__builtin_popcountg((unsigned short)~0) == __CHAR_BIT__ * sizeof(unsigned short), ""); |
| static_assert(__builtin_popcountg((unsigned short)0) == 0, ""); |
| static_assert(__builtin_popcountg(~0u) == __CHAR_BIT__ * sizeof(unsigned int), ""); |
| static_assert(__builtin_popcountg(0u) == 0, ""); |
| static_assert(__builtin_popcountg(~0ul) == __CHAR_BIT__ * sizeof(unsigned long), ""); |
| static_assert(__builtin_popcountg(0ul) == 0, ""); |
| static_assert(__builtin_popcountg(~0ull) == __CHAR_BIT__ * sizeof(unsigned long long), ""); |
| static_assert(__builtin_popcountg(0ull) == 0, ""); |
| #ifdef __SIZEOF_INT128__ |
| static_assert(__builtin_popcountg(~(unsigned __int128)0) == __CHAR_BIT__ * sizeof(unsigned __int128), ""); |
| static_assert(__builtin_popcountg((unsigned __int128)0) == 0, ""); |
| #endif |
| #ifndef __AVR__ |
| static_assert(__builtin_popcountg(~(unsigned _BitInt(128))0) == __CHAR_BIT__ * sizeof(unsigned _BitInt(128)), ""); |
| static_assert(__builtin_popcountg((unsigned _BitInt(128))0) == 0, ""); |
| #endif |
| |
| /// From test/Sema/constant-builtins-2.c |
| char popcount1[__builtin_popcount(0) == 0 ? 1 : -1]; |
| char popcount2[__builtin_popcount(0xF0F0) == 8 ? 1 : -1]; |
| char popcount3[__builtin_popcount(~0) == BITSIZE(int) ? 1 : -1]; |
| char popcount4[__builtin_popcount(~0L) == BITSIZE(int) ? 1 : -1]; |
| char popcount5[__builtin_popcountl(0L) == 0 ? 1 : -1]; |
| char popcount6[__builtin_popcountl(0xF0F0L) == 8 ? 1 : -1]; |
| char popcount7[__builtin_popcountl(~0L) == BITSIZE(long) ? 1 : -1]; |
| char popcount8[__builtin_popcountll(0LL) == 0 ? 1 : -1]; |
| char popcount9[__builtin_popcountll(0xF0F0LL) == 8 ? 1 : -1]; |
| char popcount10[__builtin_popcountll(~0LL) == BITSIZE(long long) ? 1 : -1]; |
| char popcount11[__builtin_popcountg(0U) == 0 ? 1 : -1]; |
| char popcount12[__builtin_popcountg(0xF0F0U) == 8 ? 1 : -1]; |
| char popcount13[__builtin_popcountg(~0U) == BITSIZE(int) ? 1 : -1]; |
| char popcount14[__builtin_popcountg(~0UL) == BITSIZE(long) ? 1 : -1]; |
| char popcount15[__builtin_popcountg(~0ULL) == BITSIZE(long long) ? 1 : -1]; |
| #ifdef __SIZEOF_INT128__ |
| char popcount16[__builtin_popcountg(~(unsigned __int128)0) == BITSIZE(__int128) ? 1 : -1]; |
| #endif |
| #ifndef __AVR__ |
| char popcount17[__builtin_popcountg(~(unsigned _BitInt(128))0) == BITSIZE(_BitInt(128)) ? 1 : -1]; |
| #endif |
| } |
| |
| namespace parity { |
| /// From test/Sema/constant-builtins-2.c |
| char parity1[__builtin_parity(0) == 0 ? 1 : -1]; |
| char parity2[__builtin_parity(0xb821) == 0 ? 1 : -1]; |
| char parity3[__builtin_parity(0xb822) == 0 ? 1 : -1]; |
| char parity4[__builtin_parity(0xb823) == 1 ? 1 : -1]; |
| char parity5[__builtin_parity(0xb824) == 0 ? 1 : -1]; |
| char parity6[__builtin_parity(0xb825) == 1 ? 1 : -1]; |
| char parity7[__builtin_parity(0xb826) == 1 ? 1 : -1]; |
| char parity8[__builtin_parity(~0) == 0 ? 1 : -1]; |
| char parity9[__builtin_parityl(1L << (BITSIZE(long) - 1)) == 1 ? 1 : -1]; |
| char parity10[__builtin_parityll(1LL << (BITSIZE(long long) - 1)) == 1 ? 1 : -1]; |
| } |
| |
| namespace clrsb { |
| char clrsb1[__builtin_clrsb(0) == BITSIZE(int) - 1 ? 1 : -1]; |
| char clrsb2[__builtin_clrsbl(0L) == BITSIZE(long) - 1 ? 1 : -1]; |
| char clrsb3[__builtin_clrsbll(0LL) == BITSIZE(long long) - 1 ? 1 : -1]; |
| char clrsb4[__builtin_clrsb(~0) == BITSIZE(int) - 1 ? 1 : -1]; |
| char clrsb5[__builtin_clrsbl(~0L) == BITSIZE(long) - 1 ? 1 : -1]; |
| char clrsb6[__builtin_clrsbll(~0LL) == BITSIZE(long long) - 1 ? 1 : -1]; |
| char clrsb7[__builtin_clrsb(1) == BITSIZE(int) - 2 ? 1 : -1]; |
| char clrsb8[__builtin_clrsb(~1) == BITSIZE(int) - 2 ? 1 : -1]; |
| char clrsb9[__builtin_clrsb(1 << (BITSIZE(int) - 1)) == 0 ? 1 : -1]; |
| char clrsb10[__builtin_clrsb(~(1 << (BITSIZE(int) - 1))) == 0 ? 1 : -1]; |
| char clrsb11[__builtin_clrsb(0xf) == BITSIZE(int) - 5 ? 1 : -1]; |
| char clrsb12[__builtin_clrsb(~0x1f) == BITSIZE(int) - 6 ? 1 : -1]; |
| } |
| |
| namespace bitreverse { |
| char bitreverse1[__builtin_bitreverse8(0x01) == 0x80 ? 1 : -1]; |
| char bitreverse2[__builtin_bitreverse16(0x3C48) == 0x123C ? 1 : -1]; |
| char bitreverse3[__builtin_bitreverse32(0x12345678) == 0x1E6A2C48 ? 1 : -1]; |
| char bitreverse4[__builtin_bitreverse64(0x0123456789ABCDEFULL) == 0xF7B3D591E6A2C480 ? 1 : -1]; |
| } |
| |
| namespace expect { |
| constexpr int a() { |
| return 12; |
| } |
| static_assert(__builtin_expect(a(),1) == 12, ""); |
| static_assert(__builtin_expect_with_probability(a(), 1, 1.0) == 12, ""); |
| } |
| |
| namespace rotateleft { |
| char rotateleft1[__builtin_rotateleft8(0x01, 5) == 0x20 ? 1 : -1]; |
| char rotateleft2[__builtin_rotateleft16(0x3210, 11) == 0x8190 ? 1 : -1]; |
| char rotateleft3[__builtin_rotateleft32(0x76543210, 22) == 0x841D950C ? 1 : -1]; |
| char rotateleft4[__builtin_rotateleft64(0xFEDCBA9876543210ULL, 55) == 0x87F6E5D4C3B2A19ULL ? 1 : -1]; |
| } |
| |
| namespace rotateright { |
| char rotateright1[__builtin_rotateright8(0x01, 5) == 0x08 ? 1 : -1]; |
| char rotateright2[__builtin_rotateright16(0x3210, 11) == 0x4206 ? 1 : -1]; |
| char rotateright3[__builtin_rotateright32(0x76543210, 22) == 0x50C841D9 ? 1 : -1]; |
| char rotateright4[__builtin_rotateright64(0xFEDCBA9876543210ULL, 55) == 0xB97530ECA86421FDULL ? 1 : -1]; |
| } |
| |
| namespace ffs { |
| char ffs1[__builtin_ffs(0) == 0 ? 1 : -1]; |
| char ffs2[__builtin_ffs(1) == 1 ? 1 : -1]; |
| char ffs3[__builtin_ffs(0xfbe71) == 1 ? 1 : -1]; |
| char ffs4[__builtin_ffs(0xfbe70) == 5 ? 1 : -1]; |
| char ffs5[__builtin_ffs(1U << (BITSIZE(int) - 1)) == BITSIZE(int) ? 1 : -1]; |
| char ffs6[__builtin_ffsl(0x10L) == 5 ? 1 : -1]; |
| char ffs7[__builtin_ffsll(0x100LL) == 9 ? 1 : -1]; |
| } |
| |
| namespace EhReturnDataRegno { |
| void test11(int X) { |
| switch (X) { |
| case __builtin_eh_return_data_regno(0): // constant foldable. |
| break; |
| } |
| __builtin_eh_return_data_regno(X); // both-error {{argument to '__builtin_eh_return_data_regno' must be a constant integer}} |
| } |
| } |
| |
| /// From test/SemaCXX/builtins.cpp |
| namespace test_launder { |
| #define TEST_TYPE(Ptr, Type) \ |
| static_assert(__is_same(decltype(__builtin_launder(Ptr)), Type), "expected same type") |
| |
| struct Dummy {}; |
| |
| using FnType = int(char); |
| using MemFnType = int (Dummy::*)(char); |
| using ConstMemFnType = int (Dummy::*)() const; |
| |
| void foo() {} |
| |
| void test_builtin_launder_diags(void *vp, const void *cvp, FnType *fnp, |
| MemFnType mfp, ConstMemFnType cmfp, int (&Arr)[5]) { |
| __builtin_launder(vp); // both-error {{void pointer argument to '__builtin_launder' is not allowed}} |
| __builtin_launder(cvp); // both-error {{void pointer argument to '__builtin_launder' is not allowed}} |
| __builtin_launder(fnp); // both-error {{function pointer argument to '__builtin_launder' is not allowed}} |
| __builtin_launder(mfp); // both-error {{non-pointer argument to '__builtin_launder' is not allowed}} |
| __builtin_launder(cmfp); // both-error {{non-pointer argument to '__builtin_launder' is not allowed}} |
| (void)__builtin_launder(&fnp); |
| __builtin_launder(42); // both-error {{non-pointer argument to '__builtin_launder' is not allowed}} |
| __builtin_launder(nullptr); // both-error {{non-pointer argument to '__builtin_launder' is not allowed}} |
| __builtin_launder(foo); // both-error {{function pointer argument to '__builtin_launder' is not allowed}} |
| (void)__builtin_launder(Arr); |
| } |
| |
| void test_builtin_launder(char *p, const volatile int *ip, const float *&fp, |
| double *__restrict dp) { |
| int x; |
| __builtin_launder(x); // both-error {{non-pointer argument to '__builtin_launder' is not allowed}} |
| |
| TEST_TYPE(p, char*); |
| TEST_TYPE(ip, const volatile int*); |
| TEST_TYPE(fp, const float*); |
| TEST_TYPE(dp, double *__restrict); |
| |
| char *d = __builtin_launder(p); |
| const volatile int *id = __builtin_launder(ip); |
| int *id2 = __builtin_launder(ip); // both-error {{cannot initialize a variable of type 'int *' with an rvalue of type 'const volatile int *'}} |
| const float* fd = __builtin_launder(fp); |
| } |
| |
| void test_launder_return_type(const int (&ArrayRef)[101], int (&MArrRef)[42][13], |
| void (**&FuncPtrRef)()) { |
| TEST_TYPE(ArrayRef, const int *); |
| TEST_TYPE(MArrRef, int(*)[13]); |
| TEST_TYPE(FuncPtrRef, void (**)()); |
| } |
| |
| template <class Tp> |
| constexpr Tp *test_constexpr_launder(Tp *tp) { |
| return __builtin_launder(tp); |
| } |
| constexpr int const_int = 42; |
| constexpr int const_int2 = 101; |
| constexpr const int *const_ptr = test_constexpr_launder(&const_int); |
| static_assert(&const_int == const_ptr, ""); |
| static_assert(const_ptr != test_constexpr_launder(&const_int2), ""); |
| |
| void test_non_constexpr() { |
| constexpr int i = 42; // both-note {{address of non-static constexpr variable 'i' may differ on each invocation}} |
| constexpr const int *ip = __builtin_launder(&i); // both-error {{constexpr variable 'ip' must be initialized by a constant expression}} |
| // both-note@-1 {{pointer to 'i' is not a constant expression}} |
| } |
| |
| constexpr bool test_in_constexpr(const int &i) { |
| return (__builtin_launder(&i) == &i); |
| } |
| |
| static_assert(test_in_constexpr(const_int), ""); |
| void f() { |
| constexpr int i = 42; |
| static_assert(test_in_constexpr(i), ""); |
| } |
| |
| struct Incomplete; // both-note {{forward declaration}} |
| struct IncompleteMember { |
| Incomplete &i; |
| }; |
| void test_incomplete(Incomplete *i, IncompleteMember *im) { |
| // both-error@+1 {{incomplete type 'Incomplete' where a complete type is required}} |
| __builtin_launder(i); |
| __builtin_launder(&i); // OK |
| __builtin_launder(im); // OK |
| } |
| |
| void test_noexcept(int *i) { |
| static_assert(noexcept(__builtin_launder(i)), ""); |
| } |
| #undef TEST_TYPE |
| } // end namespace test_launder |
| |
| |
| /// FIXME: The commented out tests here use a IntAP value and fail. |
| /// This currently means we will leak the IntAP value since nothing cleans it up. |
| namespace clz { |
| char clz1[__builtin_clz(1) == BITSIZE(int) - 1 ? 1 : -1]; |
| char clz2[__builtin_clz(7) == BITSIZE(int) - 3 ? 1 : -1]; |
| char clz3[__builtin_clz(1 << (BITSIZE(int) - 1)) == 0 ? 1 : -1]; |
| int clz4 = __builtin_clz(0); |
| char clz5[__builtin_clzl(0xFL) == BITSIZE(long) - 4 ? 1 : -1]; |
| char clz6[__builtin_clzll(0xFFLL) == BITSIZE(long long) - 8 ? 1 : -1]; |
| char clz7[__builtin_clzs(0x1) == BITSIZE(short) - 1 ? 1 : -1]; |
| char clz8[__builtin_clzs(0xf) == BITSIZE(short) - 4 ? 1 : -1]; |
| char clz9[__builtin_clzs(0xfff) == BITSIZE(short) - 12 ? 1 : -1]; |
| |
| int clz10 = __builtin_clzg((unsigned char)0); |
| char clz11[__builtin_clzg((unsigned char)0, 42) == 42 ? 1 : -1]; |
| char clz12[__builtin_clzg((unsigned char)0x1) == BITSIZE(char) - 1 ? 1 : -1]; |
| char clz13[__builtin_clzg((unsigned char)0x1, 42) == BITSIZE(char) - 1 ? 1 : -1]; |
| char clz14[__builtin_clzg((unsigned char)0xf) == BITSIZE(char) - 4 ? 1 : -1]; |
| char clz15[__builtin_clzg((unsigned char)0xf, 42) == BITSIZE(char) - 4 ? 1 : -1]; |
| char clz16[__builtin_clzg((unsigned char)(1 << (BITSIZE(char) - 1))) == 0 ? 1 : -1]; |
| char clz17[__builtin_clzg((unsigned char)(1 << (BITSIZE(char) - 1)), 42) == 0 ? 1 : -1]; |
| int clz18 = __builtin_clzg((unsigned short)0); |
| char clz19[__builtin_clzg((unsigned short)0, 42) == 42 ? 1 : -1]; |
| char clz20[__builtin_clzg((unsigned short)0x1) == BITSIZE(short) - 1 ? 1 : -1]; |
| char clz21[__builtin_clzg((unsigned short)0x1, 42) == BITSIZE(short) - 1 ? 1 : -1]; |
| char clz22[__builtin_clzg((unsigned short)0xf) == BITSIZE(short) - 4 ? 1 : -1]; |
| char clz23[__builtin_clzg((unsigned short)0xf, 42) == BITSIZE(short) - 4 ? 1 : -1]; |
| char clz24[__builtin_clzg((unsigned short)(1 << (BITSIZE(short) - 1))) == 0 ? 1 : -1]; |
| char clz25[__builtin_clzg((unsigned short)(1 << (BITSIZE(short) - 1)), 42) == 0 ? 1 : -1]; |
| int clz26 = __builtin_clzg(0U); |
| char clz27[__builtin_clzg(0U, 42) == 42 ? 1 : -1]; |
| char clz28[__builtin_clzg(0x1U) == BITSIZE(int) - 1 ? 1 : -1]; |
| char clz29[__builtin_clzg(0x1U, 42) == BITSIZE(int) - 1 ? 1 : -1]; |
| char clz30[__builtin_clzg(0xfU) == BITSIZE(int) - 4 ? 1 : -1]; |
| char clz31[__builtin_clzg(0xfU, 42) == BITSIZE(int) - 4 ? 1 : -1]; |
| char clz32[__builtin_clzg(1U << (BITSIZE(int) - 1)) == 0 ? 1 : -1]; |
| char clz33[__builtin_clzg(1U << (BITSIZE(int) - 1), 42) == 0 ? 1 : -1]; |
| int clz34 = __builtin_clzg(0UL); |
| char clz35[__builtin_clzg(0UL, 42) == 42 ? 1 : -1]; |
| char clz36[__builtin_clzg(0x1UL) == BITSIZE(long) - 1 ? 1 : -1]; |
| char clz37[__builtin_clzg(0x1UL, 42) == BITSIZE(long) - 1 ? 1 : -1]; |
| char clz38[__builtin_clzg(0xfUL) == BITSIZE(long) - 4 ? 1 : -1]; |
| char clz39[__builtin_clzg(0xfUL, 42) == BITSIZE(long) - 4 ? 1 : -1]; |
| char clz40[__builtin_clzg(1UL << (BITSIZE(long) - 1)) == 0 ? 1 : -1]; |
| char clz41[__builtin_clzg(1UL << (BITSIZE(long) - 1), 42) == 0 ? 1 : -1]; |
| int clz42 = __builtin_clzg(0ULL); |
| char clz43[__builtin_clzg(0ULL, 42) == 42 ? 1 : -1]; |
| char clz44[__builtin_clzg(0x1ULL) == BITSIZE(long long) - 1 ? 1 : -1]; |
| char clz45[__builtin_clzg(0x1ULL, 42) == BITSIZE(long long) - 1 ? 1 : -1]; |
| char clz46[__builtin_clzg(0xfULL) == BITSIZE(long long) - 4 ? 1 : -1]; |
| char clz47[__builtin_clzg(0xfULL, 42) == BITSIZE(long long) - 4 ? 1 : -1]; |
| char clz48[__builtin_clzg(1ULL << (BITSIZE(long long) - 1)) == 0 ? 1 : -1]; |
| char clz49[__builtin_clzg(1ULL << (BITSIZE(long long) - 1), 42) == 0 ? 1 : -1]; |
| #ifdef __SIZEOF_INT128__ |
| // int clz50 = __builtin_clzg((unsigned __int128)0); |
| char clz51[__builtin_clzg((unsigned __int128)0, 42) == 42 ? 1 : -1]; |
| char clz52[__builtin_clzg((unsigned __int128)0x1) == BITSIZE(__int128) - 1 ? 1 : -1]; |
| char clz53[__builtin_clzg((unsigned __int128)0x1, 42) == BITSIZE(__int128) - 1 ? 1 : -1]; |
| char clz54[__builtin_clzg((unsigned __int128)0xf) == BITSIZE(__int128) - 4 ? 1 : -1]; |
| char clz55[__builtin_clzg((unsigned __int128)0xf, 42) == BITSIZE(__int128) - 4 ? 1 : -1]; |
| #endif |
| #ifndef __AVR__ |
| // int clz58 = __builtin_clzg((unsigned _BitInt(128))0); |
| char clz59[__builtin_clzg((unsigned _BitInt(128))0, 42) == 42 ? 1 : -1]; |
| char clz60[__builtin_clzg((unsigned _BitInt(128))0x1) == BITSIZE(_BitInt(128)) - 1 ? 1 : -1]; |
| char clz61[__builtin_clzg((unsigned _BitInt(128))0x1, 42) == BITSIZE(_BitInt(128)) - 1 ? 1 : -1]; |
| char clz62[__builtin_clzg((unsigned _BitInt(128))0xf) == BITSIZE(_BitInt(128)) - 4 ? 1 : -1]; |
| char clz63[__builtin_clzg((unsigned _BitInt(128))0xf, 42) == BITSIZE(_BitInt(128)) - 4 ? 1 : -1]; |
| #endif |
| } |
| |
| namespace ctz { |
| char ctz1[__builtin_ctz(1) == 0 ? 1 : -1]; |
| char ctz2[__builtin_ctz(8) == 3 ? 1 : -1]; |
| char ctz3[__builtin_ctz(1 << (BITSIZE(int) - 1)) == BITSIZE(int) - 1 ? 1 : -1]; |
| int ctz4 = __builtin_ctz(0); |
| char ctz5[__builtin_ctzl(0x10L) == 4 ? 1 : -1]; |
| char ctz6[__builtin_ctzll(0x100LL) == 8 ? 1 : -1]; |
| char ctz7[__builtin_ctzs(1 << (BITSIZE(short) - 1)) == BITSIZE(short) - 1 ? 1 : -1]; |
| int ctz8 = __builtin_ctzg((unsigned char)0); |
| char ctz9[__builtin_ctzg((unsigned char)0, 42) == 42 ? 1 : -1]; |
| char ctz10[__builtin_ctzg((unsigned char)0x1) == 0 ? 1 : -1]; |
| char ctz11[__builtin_ctzg((unsigned char)0x1, 42) == 0 ? 1 : -1]; |
| char ctz12[__builtin_ctzg((unsigned char)0x10) == 4 ? 1 : -1]; |
| char ctz13[__builtin_ctzg((unsigned char)0x10, 42) == 4 ? 1 : -1]; |
| char ctz14[__builtin_ctzg((unsigned char)(1 << (BITSIZE(char) - 1))) == BITSIZE(char) - 1 ? 1 : -1]; |
| char ctz15[__builtin_ctzg((unsigned char)(1 << (BITSIZE(char) - 1)), 42) == BITSIZE(char) - 1 ? 1 : -1]; |
| int ctz16 = __builtin_ctzg((unsigned short)0); |
| char ctz17[__builtin_ctzg((unsigned short)0, 42) == 42 ? 1 : -1]; |
| char ctz18[__builtin_ctzg((unsigned short)0x1) == 0 ? 1 : -1]; |
| char ctz19[__builtin_ctzg((unsigned short)0x1, 42) == 0 ? 1 : -1]; |
| char ctz20[__builtin_ctzg((unsigned short)0x10) == 4 ? 1 : -1]; |
| char ctz21[__builtin_ctzg((unsigned short)0x10, 42) == 4 ? 1 : -1]; |
| char ctz22[__builtin_ctzg((unsigned short)(1 << (BITSIZE(short) - 1))) == BITSIZE(short) - 1 ? 1 : -1]; |
| char ctz23[__builtin_ctzg((unsigned short)(1 << (BITSIZE(short) - 1)), 42) == BITSIZE(short) - 1 ? 1 : -1]; |
| int ctz24 = __builtin_ctzg(0U); |
| char ctz25[__builtin_ctzg(0U, 42) == 42 ? 1 : -1]; |
| char ctz26[__builtin_ctzg(0x1U) == 0 ? 1 : -1]; |
| char ctz27[__builtin_ctzg(0x1U, 42) == 0 ? 1 : -1]; |
| char ctz28[__builtin_ctzg(0x10U) == 4 ? 1 : -1]; |
| char ctz29[__builtin_ctzg(0x10U, 42) == 4 ? 1 : -1]; |
| char ctz30[__builtin_ctzg(1U << (BITSIZE(int) - 1)) == BITSIZE(int) - 1 ? 1 : -1]; |
| char ctz31[__builtin_ctzg(1U << (BITSIZE(int) - 1), 42) == BITSIZE(int) - 1 ? 1 : -1]; |
| int ctz32 = __builtin_ctzg(0UL); |
| char ctz33[__builtin_ctzg(0UL, 42) == 42 ? 1 : -1]; |
| char ctz34[__builtin_ctzg(0x1UL) == 0 ? 1 : -1]; |
| char ctz35[__builtin_ctzg(0x1UL, 42) == 0 ? 1 : -1]; |
| char ctz36[__builtin_ctzg(0x10UL) == 4 ? 1 : -1]; |
| char ctz37[__builtin_ctzg(0x10UL, 42) == 4 ? 1 : -1]; |
| char ctz38[__builtin_ctzg(1UL << (BITSIZE(long) - 1)) == BITSIZE(long) - 1 ? 1 : -1]; |
| char ctz39[__builtin_ctzg(1UL << (BITSIZE(long) - 1), 42) == BITSIZE(long) - 1 ? 1 : -1]; |
| int ctz40 = __builtin_ctzg(0ULL); |
| char ctz41[__builtin_ctzg(0ULL, 42) == 42 ? 1 : -1]; |
| char ctz42[__builtin_ctzg(0x1ULL) == 0 ? 1 : -1]; |
| char ctz43[__builtin_ctzg(0x1ULL, 42) == 0 ? 1 : -1]; |
| char ctz44[__builtin_ctzg(0x10ULL) == 4 ? 1 : -1]; |
| char ctz45[__builtin_ctzg(0x10ULL, 42) == 4 ? 1 : -1]; |
| char ctz46[__builtin_ctzg(1ULL << (BITSIZE(long long) - 1)) == BITSIZE(long long) - 1 ? 1 : -1]; |
| char ctz47[__builtin_ctzg(1ULL << (BITSIZE(long long) - 1), 42) == BITSIZE(long long) - 1 ? 1 : -1]; |
| #ifdef __SIZEOF_INT128__ |
| // int ctz48 = __builtin_ctzg((unsigned __int128)0); |
| char ctz49[__builtin_ctzg((unsigned __int128)0, 42) == 42 ? 1 : -1]; |
| char ctz50[__builtin_ctzg((unsigned __int128)0x1) == 0 ? 1 : -1]; |
| char ctz51[__builtin_ctzg((unsigned __int128)0x1, 42) == 0 ? 1 : -1]; |
| char ctz52[__builtin_ctzg((unsigned __int128)0x10) == 4 ? 1 : -1]; |
| char ctz53[__builtin_ctzg((unsigned __int128)0x10, 42) == 4 ? 1 : -1]; |
| char ctz54[__builtin_ctzg((unsigned __int128)1 << (BITSIZE(__int128) - 1)) == BITSIZE(__int128) - 1 ? 1 : -1]; |
| char ctz55[__builtin_ctzg((unsigned __int128)1 << (BITSIZE(__int128) - 1), 42) == BITSIZE(__int128) - 1 ? 1 : -1]; |
| #endif |
| #ifndef __AVR__ |
| // int ctz56 = __builtin_ctzg((unsigned _BitInt(128))0); |
| char ctz57[__builtin_ctzg((unsigned _BitInt(128))0, 42) == 42 ? 1 : -1]; |
| char ctz58[__builtin_ctzg((unsigned _BitInt(128))0x1) == 0 ? 1 : -1]; |
| char ctz59[__builtin_ctzg((unsigned _BitInt(128))0x1, 42) == 0 ? 1 : -1]; |
| char ctz60[__builtin_ctzg((unsigned _BitInt(128))0x10) == 4 ? 1 : -1]; |
| char ctz61[__builtin_ctzg((unsigned _BitInt(128))0x10, 42) == 4 ? 1 : -1]; |
| char ctz62[__builtin_ctzg((unsigned _BitInt(128))1 << (BITSIZE(_BitInt(128)) - 1)) == BITSIZE(_BitInt(128)) - 1 ? 1 : -1]; |
| char ctz63[__builtin_ctzg((unsigned _BitInt(128))1 << (BITSIZE(_BitInt(128)) - 1), 42) == BITSIZE(_BitInt(128)) - 1 ? 1 : -1]; |
| #endif |
| } |
| |
| namespace bswap { |
| extern int f(void); |
| int h3 = __builtin_bswap16(0x1234) == 0x3412 ? 1 : f(); |
| int h4 = __builtin_bswap32(0x1234) == 0x34120000 ? 1 : f(); |
| int h5 = __builtin_bswap64(0x1234) == 0x3412000000000000 ? 1 : f(); |
| } |
| |
| #define CFSTR __builtin___CFStringMakeConstantString |
| void test7(void) { |
| const void *X; |
| #if !defined(_AIX) |
| X = CFSTR("\242"); // both-warning {{input conversion stopped}} |
| X = CFSTR("\0"); // no-warning |
| X = CFSTR(242); // both-error {{cannot initialize a parameter of type 'const char *' with an rvalue of type 'int'}} |
| X = CFSTR("foo", "bar"); // both-error {{too many arguments to function call}} |
| #endif |
| } |
| |
| /// The actual value on my machine is 22, but I have a feeling this will be different |
| /// on other targets, so just checking for != 0 here. Light testing is fine since |
| /// the actual implementation uses analyze_os_log::computeOSLogBufferLayout(), which |
| /// is tested elsewhere. |
| static_assert(__builtin_os_log_format_buffer_size("%{mask.xyz}s", "abc") != 0, ""); |
