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[Committed] Fix tree-opt/37024, wrong tail call for conversions

From: "Andrew Pinski" <pinskia at gmail dot com>
To: "GCC Patches" <gcc-patches at gcc dot gnu dot org>
Date: Tue, 5 Aug 2008 11:20:48 -0700
Subject: [Committed] Fix tree-opt/37024, wrong tail call for conversions

Hi,
  The problem here is that we were checking the right hand of the
assignment's tree code which is never a conversion any more and we
needed to check gimple_assign_cast_p instead.  This patch fixes that
oversight for tail calls.

Committed as preapproved in the bug report after a bootstrap/test on
powerpc64-linux-gnu with no regressions.

Thanks,
Andrew Pinski

ChangeLog:

* tree-tailcall.c (process_assignment): Use gimple_assign_cast_p instead of
IS_CONVERT_EXPR_CODE_P for seeing if the assignment is a conversion.


* gcc.dg/tree-ssa/tailcall-4.c: New testcase.

Attachment: t.diff.txt
Description: Text document

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