diff options
| -rw-r--r-- | gcc/gimple-range-fold.cc | 20 | ||||
| -rw-r--r-- | gcc/gimple-range-op.cc | 27 |
2 files changed, 27 insertions, 20 deletions
diff --git a/gcc/gimple-range-fold.cc b/gcc/gimple-range-fold.cc index 63a1f51..417a925 100644 --- a/gcc/gimple-range-fold.cc +++ b/gcc/gimple-range-fold.cc @@ -944,26 +944,6 @@ fold_using_range::range_of_builtin_int_call (irange &r, gcall *call, switch (func) { - case CFN_BUILT_IN_SIGNBIT: - { - arg = gimple_call_arg (call, 0); - frange tmp; - if (src.get_operand (tmp, arg)) - { - bool signbit; - if (tmp.signbit_p (signbit)) - { - if (signbit) - r.set_nonzero (type); - else - r.set_zero (type); - return true; - } - return false; - } - break; - } - case CFN_BUILT_IN_TOUPPER: { arg = gimple_call_arg (call, 0); diff --git a/gcc/gimple-range-op.cc b/gcc/gimple-range-op.cc index bcc4c3d..d62dff5 100644 --- a/gcc/gimple-range-op.cc +++ b/gcc/gimple-range-op.cc @@ -301,6 +301,27 @@ public: } } op_cfn_constant_p; +// Implement range operator for CFN_BUILT_IN_SIGNBIT. +class cfn_signbit : public range_operator_float +{ +public: + using range_operator_float::fold_range; + virtual bool fold_range (irange &r, tree type, const frange &lh, + const irange &, relation_kind) const + { + bool signbit; + if (lh.signbit_p (signbit)) + { + if (signbit) + r.set_nonzero (type); + else + r.set_zero (type); + return true; + } + return false; + } +} op_cfn_signbit; + // Set up a gimple_range_op_handler for any built in function which can be // supported via range-ops. @@ -331,6 +352,12 @@ gimple_range_op_handler::maybe_builtin_call () m_valid = false; break; + case CFN_BUILT_IN_SIGNBIT: + m_op1 = gimple_call_arg (call, 0); + m_float = &op_cfn_signbit; + m_valid = true; + break; + default: break; } |