Hi, I've prepared a patch for: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49519
I've also prepared a test which reproduces the error.
ChangeLog entry:
2011-07-06 Kirill Yukhin <kirill.yuk...@intel.com>
PR tailcall-optimization/49519
* calls.c (mem_overlaps_already_clobbered_arg_p): Additional
check if address is stored in register. If so - give up.
(check_sibcall_argument_overlap_1): Do not perform check of
overlapping when it is call to address.
tessuite/ChangeLog entry:
2011-07-06 Kirill Yukhin <kirill.yuk...@intel.com>
* g++.dg/torture/pr49519.C: New test for tailcall fix.
Bootstrapped, new test fails without patch, passes when it is applied.
This fixes the bprblem with SPEC2006/447.dealII miscompile
Ok for trunk?
Thanks, K
pr49519.gcc.patch
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