Fix use of boolean_true/false_node (PR 83979)
r255913 changed some constant_boolean_node calls to boolean_true_node
and boolean_false_node, which meant that the returned tree didn't
always have the right type.
2018-01-24 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
PR tree-optimization/83979
* fold-const.c (fold_comparison): Use constant_boolean_node
instead of boolean_{true,false}_node.
gcc/testsuite/
PR tree-optimization/83979
* g++.dg/pr83979.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@257021 138bc75d-0d04-0410-961f-82ee72b054a4