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Linux test merged.

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This commit is contained in:
Vahagn Khachatryan
2013-02-22 23:48:24 +04:00
parent 16f2ae5f57
commit a730bde647
16 changed files with 747 additions and 269 deletions
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126
test_i32_overflow.cpp Normal file
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#include <exception>
#include <iostream>
#include <stdexcept>
inline void throw_overflow ()
{
throw std::runtime_error( "Overflow!!!" );
}
#define E void (*err)()
//template <class E>
inline int add( int op1, int op2, E )
{
asm ( "add %1, %0"
: "=r"(op1)
: "r"(op2),"0"(op1) );
asm goto( "jo %l[throw_exception]"
: : : "memory"
: throw_exception );
return op1;
throw_exception:
err();
}
//template <class E>
inline long add( long op1, long op2, E)
{
asm ( "add %1, %0"
: "=r"(op1)
: "r"(op2),"0"(op1) );
asm goto( "jo %l[throw_exception]"
: : : "memory"
: throw_exception );
return op1;
throw_exception:
err();
}
// Just test a possible implementation for 386
//template <class E>
inline long long add( long long op1, long long op2, E )
{
unsigned int op1l = (unsigned int)op1;
unsigned int op1h = (unsigned int)((unsigned long long)op1 >> 32);
unsigned int op2l = (unsigned int)op2;
unsigned int op2h = (unsigned int)((unsigned long long)op2 >> 32);
asm ( "add %2, %0\n"
"adc %3, %1"
: "=a"(op1l),"=d"(op1h)
: "g"(op2l),"g"(op2h),"0"(op1l),"1"(op1h) );
asm goto( "jo %l[throw_exception]"
: : : "memory"
: throw_exception );
return (long long)((unsigned long long)op1l | ((unsigned long long)op1h << 32));
throw_exception:
err();
}
#if 0
//
//GCC 4.5.2 crashes on this template.
//I filed a bug against GCC. #55528
//
template <class C>
inline C add2( C op1, C op2 )
{
asm ( "add %1, %0"
: "=r"(op1)
: "r"(op2),"0"(op1) );
asm goto( "jo %l[throw_exception]"
: : : "memory"
: throw_exception );
return op1;
throw_exception:
return throw_overflow();
}
#endif
template <class C>
inline void test_add( C op1, C op2 )
{try
{
std::cout << op1 << " + " << op2 << " = ";
std::cout.flush();
C r = add( op1, op2, &throw_overflow );
std::cout << r << std::endl;
}
catch ( const std::exception& e )
{
std::cout << e.what() << std::endl;
}
catch ( ... )
{
std::cout << "unknown exception" << std::endl;
}
}
int main( void )
{
test_add( 10, 20);
test_add( 100, 200);
test_add( 1000, 2000);
test_add( 1000000000, 2000000000);
test_add( 1000000000, -2000000000);
test_add( -1000000000, 2000000000);
test_add( -1000000000, -2000000000);
test_add( 1000000000L, 2000000000L);
test_add( 1000000000L,-2000000000L);
test_add( -1000000000L, 2000000000L);
test_add( -1000000000L,-2000000000L);
test_add( 7000000000000000000L, 8000000000000000000L);
test_add( 7000000000000000000L, -8000000000000000000L);
test_add( -7000000000000000000L, 8000000000000000000L);
test_add( -7000000000000000000L, -8000000000000000000L);
test_add( (long long)7000000000000000000L, (long long)8000000000000000000L);
test_add( (long long)7000000000000000000L, (long long)-8000000000000000000L);
test_add( (long long)-7000000000000000000L, (long long)8000000000000000000L);
test_add( (long long)-7000000000000000000L, (long long)-8000000000000000000L);
return 0;
}