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| author | Georg-Johann Lay <avr@gjlay.de> | 2013-01-30 11:04:30 +0000 |
|---|---|---|
| committer | Georg-Johann Lay <gjl@gcc.gnu.org> | 2013-01-30 11:04:30 +0000 |
| commit | cc06c01d0a29c6e1466feba98d8ae3bf20193822 (patch) | |
| tree | 7cbebdbd492e700058cfc647470eb384b37f121e /gcc/double-int.h | |
| parent | d394a308e34df7dfe56e1b3995a2622e1ed19068 (diff) | |
| download | gcc-cc06c01d0a29c6e1466feba98d8ae3bf20193822.zip gcc-cc06c01d0a29c6e1466feba98d8ae3bf20193822.tar.gz gcc-cc06c01d0a29c6e1466feba98d8ae3bf20193822.tar.bz2 | |
re PR tree-optimization/56064 (Optimize VIEW_CONVERT_EXPR with FIXED_CST)
gcc/
PR tree-optimization/56064
* fixed-value.c (fixed_from_double_int): New function.
* fixed-value.h (fixed_from_double_int): New prototype.
(const_fixed_from_double_int): New static inline function.
* fold-const.c (native_interpret_fixed): New static function.
(native_interpret_expr) <FIXED_POINT_TYPE>: Use it.
(can_native_interpret_type_p) <FIXED_POINT_TYPE>: Return true.
(native_encode_fixed): New static function.
(native_encode_expr) <FIXED_CST>: Use it.
(native_interpret_int): Move double_int worker code to...
* double-int.c (double_int::from_buffer): ...this new static method.
* double-int.h (double_int::from_buffer): Prototype it.
gcc/testsuite/
PR tree-optimization/56064
* gcc.dg/fixed-point/view-convert.c: New test.
From-SVN: r195574
Diffstat (limited to 'gcc/double-int.h')
| -rw-r--r-- | gcc/double-int.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/double-int.h b/gcc/double-int.h index c5c2bba..5c425a8 100644 --- a/gcc/double-int.h +++ b/gcc/double-int.h @@ -59,6 +59,10 @@ struct double_int static double_int from_shwi (HOST_WIDE_INT cst); static double_int from_pair (HOST_WIDE_INT high, unsigned HOST_WIDE_INT low); + /* Construct from a fuffer of length LEN. BUFFER will be read according + to byte endianess and word endianess. */ + static double_int from_buffer (const unsigned char *buffer, int len); + /* No copy assignment operator or destructor to keep the type a POD. */ /* There are some special value-creation static member functions. */ |