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fix a few compilation warnings

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- remove unused variables and class fields
 - add support for gcc 4.5 & clang's __builtin_unreachable
 - fix 2 bugs related to strict aliasing
 - remove a few unused function parameters

Signed-off-by: Nuno Lopes <t-nclaud@microsoft.com>
This commit is contained in:
Nuno Lopes 2013-04-21 14:36:39 -07:00
parent 0673f645c9
commit 7ce88d4da9
46 changed files with 97 additions and 122 deletions
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15
src/util/hwf.h
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@ -28,6 +28,12 @@ class hwf {
friend class hwf_manager;
double value;
hwf & operator=(hwf const & other) { UNREACHABLE(); return *this; }
uint64 get_raw() const {
uint64 n;
SASSERT(sizeof(n) == sizeof(value));
memcpy(&n, &value, sizeof(value));
return n;
}
public:
hwf() {}
@ -122,16 +128,15 @@ public:
bool sgn(hwf const & x) const {
uint64 raw = *reinterpret_cast<uint64 const *>(&x.value);
return (raw & 0x8000000000000000ull) != 0;
return (x.get_raw() & 0x8000000000000000ull) != 0;
}
const uint64 sig(hwf const & x) const {
return *reinterpret_cast<uint64 const *>(&x.value) & 0x000FFFFFFFFFFFFFull;
return x.get_raw() & 0x000FFFFFFFFFFFFFull;
}
const int exp(hwf const & x) const {
return ((*reinterpret_cast<uint64 const *>(&x.value) & 0x7FF0000000000000ull) >> 52) - 1023;
return ((x.get_raw() & 0x7FF0000000000000ull) >> 52) - 1023;
}
bool is_nan(hwf const & x);
@ -151,7 +156,7 @@ public:
void mk_pinf(hwf & o);
void mk_ninf(hwf & o);
unsigned hash(hwf const & a) { return hash_ull(*reinterpret_cast<const unsigned long long*>(&a.value)); }
unsigned hash(hwf const & a) { return hash_ull(a.get_raw()); }
inline void set_rounding_mode(mpf_rounding_mode rm);