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PR rtl-optimization/42216
authorbernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4>
Wed, 17 Mar 2010 09:25:35 +0000 (09:25 +0000)
committerbernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4>
Wed, 17 Mar 2010 09:25:35 +0000 (09:25 +0000)
commit17db414fa2dc953c38f029f7e620f555a62c61bf
tree79f93c327c44f2bd3488b8246a50ccea1207d51f
parent71e7d89442a899c1db36a56329c9c5f01d95417f
PR rtl-optimization/42216
* regrename.c (create_new_chain): New function, broken out from...
(scan_rtx_reg): ... here.  Call it.  Handle the case where we are
appending a use to an empty chain.
(build_def_use): Remove previous changes that convert OP_INOUT to
OP_OUT operands; instead detect the case where an OP_INOUT operand
uses a previously untracked register and create an empty chain for
it.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@157511 138bc75d-0d04-0410-961f-82ee72b054a4
gcc/ChangeLog
gcc/regrename.c