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unknown user pushed a change to branch gcc-6-branch in repository gcc.

from 9756227 * tree-if-conv.c (is_false_predicate): For NULL_TREE return [...] new e198338 PR c++/66543 - -Wunused-but-set* false positives new 9f9b359 * c-cppbuiltin.c (c_cpp_builtins): Fix __cpp_range_based_for.

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Summary of changes: gcc/c-family/ChangeLog | 4 ++++ gcc/c-family/c-cppbuiltin.c | 4 +++- gcc/cp/ChangeLog | 8 ++++++++ gcc/cp/expr.c | 1 + gcc/cp/pt.c | 2 ++ gcc/cp/semantics.c | 6 ++++++ gcc/testsuite/g++.dg/warn/Wunused-parm-7.C | 17 +++++++++++++++++ gcc/testsuite/g++.dg/warn/Wunused-parm-8.C | 9 +++++++++ gcc/testsuite/g++.dg/warn/Wunused-var-24.C | 10 ++++++++++ gcc/testsuite/g++.dg/warn/Wunused-var-25.C | 15 +++++++++++++++ 10 files changed, 75 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/g++.dg/warn/Wunused-parm-7.C create mode 100644 gcc/testsuite/g++.dg/warn/Wunused-parm-8.C create mode 100644 gcc/testsuite/g++.dg/warn/Wunused-var-24.C create mode 100644 gcc/testsuite/g++.dg/warn/Wunused-var-25.C