On Fri, Oct 17, 2008 at 01:26:20PM -0400, Michael Meissner wrote:
> Why do you need new syntax? The current constraints file already supports
> target specific constraints. For example, from the i386:
>
> (define_register_constraint "x" "TARGET_SSE ? SSE_REGS : NO_REGS"
> "Any SSE register.")
>
On Fri, Oct 17, 2008 at 05:51:03PM +0100, Joern Rennecke wrote:
> I want some constriants to be register constraints when compiling with
> a particular set of compiler flags, and extra constraints when compiling
> with another.
> (In the first case, alternatives that use this constraint can be sele
I want some constriants to be register constraints when compiling with
a particular set of compiler flags, and extra constraints when compiling
with another.
(In the first case, alternatives that use this constraint can be selected by
reload for reloading non-matching insns, whereas in the second
