On 03/18/2016 06:25 AM, Bernd Schmidt wrote:
This fixes an oversight in my previous patch here. I used biggest_mode
in the assumption that if the reg was used in the function, it would be
set to something other than VOIDmode, but that fails if we have a
multiword access - only the first hard reg gets its biggest_mode
assigned in that case.
Bootstrapped and tested on x86_64-linux, ran (just) the new arm testcase
manually with arm-eabi. Ok?
(The testcase seems to be from glibc. Do we keep the copyright notices
on the reduced form)?
I don't recall specific guidance on including the copyright notice on a
reduced/derived test.
Given the actual copyright on the original code, ISTM the safest thing
to do is keep the notice intact.
A long long time ago I receive guidance from the FSF WRT what could be
included in the testsuite -- unfortunately I didn't keep that message.
I probably should have.
Bernd
70278.diff
PR rtl-optimization/70278
* lra-constraints.c (split_reg): Handle the case where biggest_mode is
VOIDmode.
testsuite/
* gcc.dg/torture/pr70278.c: New test.
* gcc.target/arm/pr70278.c: New test.
OK.
jeff
