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// Copyright 2012 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef jit_riscv64_base_Integer_h
#define jit_riscv64_base_Integer_h
#include "mozilla/Assertions.h"
#include <stdint.h>
namespace js::jit {
//
// Constants from v8/src/common/globals.h
//
constexpr uint64_t kBitsPerByte = 8UL;
//
// Functions from v8/src/utils/utils.h
//
// Check number width.
inline constexpr bool is_intn(int64_t x, unsigned n) {
MOZ_ASSERT((0 < n) && (n < 64));
int64_t limit = static_cast<int64_t>(1) << (n - 1);
return (-limit <= x) && (x < limit);
}
inline constexpr bool is_uintn(int64_t x, unsigned n) {
MOZ_ASSERT((0 < n) && (n < (sizeof(x) * kBitsPerByte)));
return !(x >> n);
}
// clang-format off
#define INT_1_TO_63_LIST(V) \
V(1) V(2) V(3) V(4) V(5) V(6) V(7) V(8) V(9) V(10) \
V(11) V(12) V(13) V(14) V(15) V(16) V(17) V(18) V(19) V(20) \
V(21) V(22) V(23) V(24) V(25) V(26) V(27) V(28) V(29) V(30) \
V(31) V(32) V(33) V(34) V(35) V(36) V(37) V(38) V(39) V(40) \
V(41) V(42) V(43) V(44) V(45) V(46) V(47) V(48) V(49) V(50) \
V(51) V(52) V(53) V(54) V(55) V(56) V(57) V(58) V(59) V(60) \
V(61) V(62) V(63)
// clang-format on
#define DECLARE_IS_INT_N(N) \
inline constexpr bool is_int##N(int64_t x) { return is_intn(x, N); }
#define DECLARE_IS_UINT_N(N) \
template <class T> \
inline constexpr bool is_uint##N(T x) { \
return is_uintn(x, N); \
}
INT_1_TO_63_LIST(DECLARE_IS_INT_N)
INT_1_TO_63_LIST(DECLARE_IS_UINT_N)
#undef DECLARE_IS_INT_N
#undef DECLARE_IS_UINT_N
#undef INT_1_TO_63_LIST
} // namespace js::jit
#endif // jit_riscv64_base_Integer_h