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Fix the GCC build (#40)

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* Make it compile with GCC.  
* Add GCC to CI.
* Add warning to documentation about using GCC.
This commit is contained in:
Matthew Parkinson
2019-05-05 19:58:37 +01:00
committed by GitHub
parent 0b64536be4
commit 8fcedfc290
8 changed files with 74 additions and 11 deletions
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11
src/ds/bits.h
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@@ -14,7 +14,13 @@
# include <emmintrin.h>
# define ALWAYSINLINE __attribute__((always_inline))
# define NOINLINE __attribute__((noinline))
# define HEADER_GLOBAL __attribute__((selectany))
# ifdef __clang__
# define HEADER_GLOBAL __attribute__((selectany))
# else
// GCC does not support selectany, weak is almost the correct
// attribute, but leaves the global variable preemptible.
# define HEADER_GLOBAL __attribute__((weak))
# endif
#endif
#if defined(__i386__) || defined(_M_IX86) || defined(_X86_) || \
@@ -299,7 +305,8 @@ namespace snmalloc
# endif
#else
size_t prod = x * y;
return y && (x > ((size_t)-1 / y));
overflow = y && (x > ((size_t)-1 / y));
return prod;
#endif
}

10
src/ds/mpmcstack.h
View File

@@ -7,14 +7,14 @@ namespace snmalloc
template<class T, Construction c = RequiresInit>
class MPMCStack
{
using ABA = ABA<T, c>;
using ABAT = ABA<T, c>;
private:
static_assert(
std::is_same<decltype(T::next), std::atomic<T*>>::value,
"T->next must be a std::atomic<T*>");
ABA stack;
ABAT stack;
public:
void push(T* item)
@@ -29,7 +29,7 @@ namespace snmalloc
do
{
T* top = ABA::load(cmp);
T* top = ABAT::load(cmp);
last->next.store(top, std::memory_order_release);
} while (!stack.compare_exchange(cmp, first));
}
@@ -44,7 +44,7 @@ namespace snmalloc
do
{
top = ABA::load(cmp);
top = ABAT::load(cmp);
if (top == nullptr)
break;
@@ -63,7 +63,7 @@ namespace snmalloc
do
{
top = ABA::load(cmp);
top = ABAT::load(cmp);
if (top == nullptr)
break;