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r180984 - in /branches/google/gcc-4_6/gcc: Chan...
- From: delesley at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Fri, 04 Nov 2011 21:30:43 -0000
- Subject: r180984 - in /branches/google/gcc-4_6/gcc: Chan...
Author: delesley
Date: Fri Nov 4 21:30:43 2011
New Revision: 180984
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=180984
Log:
This patch fixes an ICE caused when the ipa-sra optimization deletes
function arguments that are referenced from within a thread safety
attribute. It will attempt to detect this situation and recover
gracefully. Since a graceful recovery is not always possible, an
optional warning (-Wwarn-thread-optimization) can be turned on to
inform the user that certain attributes have been removed by
optimization.
Modified:
branches/google/gcc-4_6/gcc/ChangeLog.google-4_6
branches/google/gcc-4_6/gcc/common.opt
branches/google/gcc-4_6/gcc/testsuite/ChangeLog.google-4_6
branches/google/gcc-4_6/gcc/testsuite/g++.dg/thread-ann/thread_annot_lock-82.C
branches/google/gcc-4_6/gcc/tree-threadsafe-analyze.c