Ping!
On Wednesday 22 June 2016 12:05 PM, Pitchumani Sivanupandi wrote:
On Tuesday 21 June 2016 09:39 PM, Georg-Johann Lay wrote:
Pitchumani Sivanupandi schrieb:
Attached patches add documentation for -mfract-convert-truncate option
and add that info to release notes (gcc-4.9 changes).
If OK, could someone commit please? I do not have commit access.
Regards,
Pitchumani
gcc/ChangeLog
2016-06-21 Pitchumani Sivanupandi <pitchuman...@atmel.com>
PR target/58655
* doc/invoke.texi (AVR Options): Document -mfract-convert-truncate
option.
--- a/wwwdocs/htdocs/gcc-4.9/changes.html
+++ b/wwwdocs/htdocs/gcc-4.9/changes.html
@@ -579,6 +579,14 @@ auto incr(T x) { return x++; }
size when compiling for the M-profile processors.
</li>
</ul>
+<h3 id="avr">AVR</h3>
+<ul>
+ <li>
+ A new command-line option -mfract-convert-truncate has been added.
<code> tags around the option.
+ It allows compiler to use truncation instead of rounding towards
+ 0 for fractional int types.
"zero" instead of "0", and it's for fixed-point types, not for int
types.
+ </li>
+</ul>
<h3 id="x86">IA-32/x86-64</h3>
<ul>
<li><code>-mfpmath=sse</code> is now implied by
<code>-ffast-math</code>
...
@emph{Blackfin Options}
@gccoptlist{-mcpu=@var{cpu}@r{[}-@var{sirevision}@r{]} @gol
@@ -14586,6 +14586,10 @@ sbiw r26, const ; X -= const
@opindex mtiny-stack
Only change the lower 8@tie{}bits of the stack pointer.
+@item -mfract-convert-truncate
+@opindex mfract-convert-truncate
+Allow to use truncation instead of rounding towards 0 for fractional
int types.
Same here: "zero" and "fixed-point".
+
@item -nodevicelib
@opindex nodevicelib
Don't link against AVR-LibC's device specific library
@code{lib<mcu>.a}.
Thanks Johann.
Updated the patches.
Regards,
Pitchumani
gcc/ChangeLog
2016-06-22 Pitchumani Sivanupandi <pitchuman...@atmel.com>
PR target/58655
* config/avr/avr.opt (-mfract-convert-truncate): Update description.
* doc/invoke.texi (AVR Options): Document it.
