On Mon, May 11, 2015 at 06:13:40AM -0700, Segher Boessenkool wrote:
> * combine.c (simplify_set): When generating a CC set, if the
> source already is in the correct mode, do not wrap it in a
> compare. Simplify the rest of that code.
Committed now.
Segher
On 05/11/2015 03:11 PM, Segher Boessenkool wrote:
On Mon, May 11, 2015 at 11:23:47AM -0600, Jeff Law wrote:
* combine.c (simplify_set): When generating a CC set, if the
source already is in the correct mode, do not wrap it in a
compare. Simplify the rest of that code.
S
On Mon, May 11, 2015 at 11:23:47AM -0600, Jeff Law wrote:
> > * combine.c (simplify_set): When generating a CC set, if the
> > source already is in the correct mode, do not wrap it in a
> > compare. Simplify the rest of that code.
> Seems reasonable. Might not hurt to do a little test
On 05/11/2015 07:13 AM, Segher Boessenkool wrote:
There already was code to just use the original reg:CC, but it was
positioned incorrectly: if the original code (that this RTL is
simplified from) did not already start with a COMPARE (or not in
the right mode), it didn't trigger. But it is valid
There already was code to just use the original reg:CC, but it was
positioned incorrectly: if the original code (that this RTL is
simplified from) did not already start with a COMPARE (or not in
the right mode), it didn't trigger. But it is valid in that case
as well.
This then allows merging the
