diff options
Diffstat (limited to 'Zend/zend_operators.h')
| -rw-r--r-- | Zend/zend_operators.h | 73 |
1 files changed, 65 insertions, 8 deletions
diff --git a/Zend/zend_operators.h b/Zend/zend_operators.h index a404b79c1c..7fc11cc144 100644 --- a/Zend/zend_operators.h +++ b/Zend/zend_operators.h @@ -35,13 +35,10 @@ #include <ieeefp.h> #endif +#include "zend_portability.h" #include "zend_strtod.h" #include "zend_multiply.h" -#if 0&&HAVE_BCMATH -#include "ext/bcmath/libbcmath/src/bcmath.h" -#endif - #define LONG_SIGN_MASK (((zend_long)1) << (8*sizeof(zend_long)-1)) BEGIN_EXTERN_C() @@ -444,7 +441,23 @@ ZEND_API void zend_update_current_locale(void); static zend_always_inline void fast_long_increment_function(zval *op1) { -#if defined(__GNUC__) && defined(__i386__) +#if PHP_HAVE_BUILTIN_SADDL_OVERFLOW && SIZEOF_LONG == SIZEOF_ZEND_LONG + long lresult; + if (UNEXPECTED(__builtin_saddl_overflow(Z_LVAL_P(op1), 1, &lresult))) { + /* switch to double */ + ZVAL_DOUBLE(op1, (double)ZEND_LONG_MAX + 1.0); + } else { + Z_LVAL_P(op1) = lresult; + } +#elif PHP_HAVE_BUILTIN_SADDLL_OVERFLOW && SIZEOF_LONG_LONG == SIZEOF_ZEND_LONG + long long llresult; + if (UNEXPECTED(__builtin_saddll_overflow(Z_LVAL_P(op1), 1, &llresult))) { + /* switch to double */ + ZVAL_DOUBLE(op1, (double)ZEND_LONG_MAX + 1.0); + } else { + Z_LVAL_P(op1) = llresult; + } +#elif defined(__GNUC__) && defined(__i386__) __asm__( "incl (%0)\n\t" "jno 0f\n\t" @@ -482,7 +495,23 @@ static zend_always_inline void fast_long_increment_function(zval *op1) static zend_always_inline void fast_long_decrement_function(zval *op1) { -#if defined(__GNUC__) && defined(__i386__) +#if PHP_HAVE_BUILTIN_SSUBL_OVERFLOW && SIZEOF_LONG == SIZEOF_ZEND_LONG + long lresult; + if (UNEXPECTED(__builtin_ssubl_overflow(Z_LVAL_P(op1), 1, &lresult))) { + /* switch to double */ + ZVAL_DOUBLE(op1, (double)ZEND_LONG_MIN - 1.0); + } else { + Z_LVAL_P(op1) = lresult; + } +#elif PHP_HAVE_BUILTIN_SSUBLL_OVERFLOW && SIZEOF_LONG_LONG == SIZEOF_ZEND_LONG + long long llresult; + if (UNEXPECTED(__builtin_ssubll_overflow(Z_LVAL_P(op1), 1, &llresult))) { + /* switch to double */ + ZVAL_DOUBLE(op1, (double)ZEND_LONG_MIN - 1.0); + } else { + Z_LVAL_P(op1) = llresult; + } +#elif defined(__GNUC__) && defined(__i386__) __asm__( "decl (%0)\n\t" "jno 0f\n\t" @@ -520,7 +549,21 @@ static zend_always_inline void fast_long_decrement_function(zval *op1) static zend_always_inline void fast_long_add_function(zval *result, zval *op1, zval *op2) { -#if defined(__GNUC__) && defined(__i386__) \ +#if PHP_HAVE_BUILTIN_SADDL_OVERFLOW && SIZEOF_LONG == SIZEOF_ZEND_LONG + long lresult; + if (UNEXPECTED(__builtin_saddl_overflow(Z_LVAL_P(op1), Z_LVAL_P(op2), &lresult))) { + ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) + (double) Z_LVAL_P(op2)); + } else { + ZVAL_LONG(result, lresult); + } +#elif PHP_HAVE_BUILTIN_SADDLL_OVERFLOW && SIZEOF_LONG_LONG == SIZEOF_ZEND_LONG + long long llresult; + if (UNEXPECTED(__builtin_saddll_overflow(Z_LVAL_P(op1), Z_LVAL_P(op2), &llresult))) { + ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) + (double) Z_LVAL_P(op2)); + } else { + ZVAL_LONG(result, llresult); + } +#elif defined(__GNUC__) && defined(__i386__) \ && !(4 == __GNUC__ && 8 == __GNUC_MINOR__) \ && !(4 == __GNUC__ && 9 == __GNUC_MINOR__ && (defined(__PIC__) || defined(__PIE__))) /* Position-independent builds fail with gcc-4.9.x */ @@ -609,7 +652,21 @@ static zend_always_inline int fast_add_function(zval *result, zval *op1, zval *o static zend_always_inline void fast_long_sub_function(zval *result, zval *op1, zval *op2) { -#if defined(__GNUC__) && defined(__i386__) && \ +#if PHP_HAVE_BUILTIN_SSUBL_OVERFLOW && SIZEOF_LONG == SIZEOF_ZEND_LONG + long lresult; + if (UNEXPECTED(__builtin_ssubl_overflow(Z_LVAL_P(op1), Z_LVAL_P(op2), &lresult))) { + ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) - (double) Z_LVAL_P(op2)); + } else { + ZVAL_LONG(result, lresult); + } +#elif PHP_HAVE_BUILTIN_SSUBLL_OVERFLOW && SIZEOF_LONG_LONG == SIZEOF_ZEND_LONG + long long llresult; + if (UNEXPECTED(__builtin_ssubll_overflow(Z_LVAL_P(op1), Z_LVAL_P(op2), &llresult))) { + ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) - (double) Z_LVAL_P(op2)); + } else { + ZVAL_LONG(result, llresult); + } +#elif defined(__GNUC__) && defined(__i386__) && \ !(4 == __GNUC__ && 8 == __GNUC_MINOR__) && \ !(4 == __GNUC__ && 9 == __GNUC_MINOR__ && (defined(__PIC__) || defined(__PIE__))) /* Position-independent builds fail with gcc-4.9.x */ |