On Wed, Mar 9, 2016 at 2:09 PM, Segher Boessenkool <seg...@kernel.crashing.org> wrote: > [ Please don't top-post. ] > > On Wed, Mar 09, 2016 at 11:23:22AM -0300, Andres Tiraboschi wrote: >> We are developing this feature for x86_64 >> I want to see which registers are being used by the current function >> for returning a value or as arguments. >> I traverse the rtl looking for clobbered registers, but I don't know >> how to find which registers are arguments from the current function >> and which are used for storing the return value. How do you suggest to >> do this? > > You can probably do something with diddle_return_value. > > > Segher
Hi, we attached a patch in: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69976 Please take a look!