On Mon, 29 Feb 2016, Eric Botcazou wrote: > - new scalar_storage_order type attribute in C, > - ABI change for SPARC 64-bit, > - automatic enabling of -mstackrealign with SSE for Windows 32-bit.
+ <li>A new type attribute <code>scalar_storage_order</code> applying to + structures and unions has been introduced. It makes it possible + to specify the storage order (aka endianness) in memory of scalar + fields in the structures or unions.</li> How about saying "It specifies the storage order..."? And "in structures and unions"? + <li>An ABI bug has been fixed in 64-bit mode. Unfortunately, this change + will break binary compatibility with earlier releases for code it affects, + but this should be pretty rare in practice. The conditions are: a 16-byte + structure containing a <code>double</code> or a 8-byte vector in the second + half is passed in slot #15 to a subprogram, for example as 16th parameter + if the first 15 ones have at most 8 bytes. The <code>double</code> or + vector was wrongly passed in floating-point register <code>%d32</code> + in lieu of on the stack as per the SPARC calling conventions.</li> That really must occur super, super rarely. ;-) How about "...is passed to a subprogram in slot #15..."? Okay with the changes above. Thanks for taking the time to document these! Gerald
