[PATCH] Fixes to must-tail-call tests

[Rainer Orth]

David Malcolm <dmalcolm@redhat.com> writes:

> The following fixes the known failures of the must-tail-call tests.
>
> Tested with --target=
> * aarch64-unknown-linux-gnu
> * ia64-unknown-linux-gnu
> * m68k-unknown-linux-gnu
> * x86_64-pc-linux-gnu

Even with this patch, there are still failures on sparc-sun-solaris2.12:

FAIL: gcc.dg/plugin/must-tail-call-1.c -fplugin=./must_tail_call_plugin.so (test for excess errors)

Excess errors:
/vol/gcc/src/hg/trunk/local/gcc/testsuite/gcc.dg/plugin/must-tail-call-1.c:12:10: error: cannot tail-call: target is not able to optimize the call into a sibling call

FAIL: gcc.dg/plugin/must-tail-call-2.c -fplugin=./must_tail_call_plugin.so (test for excess errors)

Excess errors:
/vol/gcc/src/hg/trunk/local/gcc/testsuite/gcc.dg/plugin/must-tail-call-2.c:32:10: error: cannot tail-call: target is not able to optimize the call into a sibling call

	Rainer

-- 
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Rainer Orth, Center for Biotechnology, Bielefeld University