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cpu: Avoid including inorder TLBUnit to avoid gcc LTO bug

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This patch comments out the inclusion of the inorder TLBUnit which is
only used in the 9-stage pipeline. With the TLBUnit present, gcc >=
4.6 in combination with LTO ends up throwing away the definition of
the TLBUnit destructor, and consequently fail to link. See
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53808 for more details
about the bug, and http://gcc.gnu.org/ml/gcc/2012-06/msg00397.html for
the discussion thread that also touches on similar issues seen with
clang.
This commit is contained in:
Andreas Hansson 2013-03-20 06:41:23 -04:00
parent e28e6246fc
commit 2ca42cd626
1 changed files with 3 additions and 1 deletions
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4
src/cpu/inorder/resources/resource_list.hh
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@ -42,7 +42,9 @@
#include "cpu/inorder/resources/graduation_unit.hh"
#include "cpu/inorder/resources/inst_buffer.hh"
#include "cpu/inorder/resources/mult_div_unit.hh"
#include "cpu/inorder/resources/tlb_unit.hh"
// The TLBUnit is only needed with the 9-stage pipe and is
// triggering a gcc LTO bug
//#include "cpu/inorder/resources/tlb_unit.hh"
#include "cpu/inorder/resources/use_def.hh"
#endif