This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
[patch 01/36] Hookize static chain and trampoline macros
- From: Richard Henderson <rth at redhat dot com>
- To: GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: Mon, 21 Sep 2009 14:42:43 -0700
- Subject: [patch 01/36] Hookize static chain and trampoline macros
In order to solve PR 41246, I need to have the location of the static
chain be variable, based on the target nested function being called.
Which requires that we pass around the FUNCTION_DECL when asking for the
static_chain_rtx and when initializing the trampoline. I took the
opportunity to hookize TRAMPOLINE_TEMPLATE and INITIALIZE_TRAMPOLINE at
the same time. After all of the following series of patches is applied,
it will be possible to poison these two macros and remove the fallback
macro-to-hook adapter functions I added.
I've bootstrapped this on x86_64-linux, i686-linux.
I have built cc1 for every target and compared before-and-after assembly
by eye. In most cases the assembly is not identical because I'm now
properly filling in the MEM_ATTRS while initializing the trampoline,
which leads to a fair bit of code movement at -O2.
r~
Attachment:
d-tramp-01
Description: Text document