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From: Andrew Macleod <amacleod@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r14-1634] Fix floating point bug in fold_range. Date: Thu, 8 Jun 2023 18:57:22 +0000 (GMT) [thread overview] Message-ID: <20230608185722.7175A3858C20@sourceware.org> (raw) https://gcc.gnu.org/g:ce81740c44c07a82a0839fa8c08a0a51a72c5cfe commit r14-1634-gce81740c44c07a82a0839fa8c08a0a51a72c5cfe Author: Andrew MacLeod <amacleod@redhat.com> Date: Wed Jun 7 14:03:35 2023 -0400 Fix floating point bug in fold_range. We currently do not have any floating point operators where operand 1 is a different type than the LHS. When we eventually do there is a bug in fold_range. If either operand is a known NAN, it returns a NAN of the type of operand 1 instead of the result type. * range-op-float.cc (range_operator_float::fold_range): Return NAN of the result type. Diff: --- gcc/range-op-float.cc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/range-op-float.cc b/gcc/range-op-float.cc index a99a6b01ed8..af598b60a79 100644 --- a/gcc/range-op-float.cc +++ b/gcc/range-op-float.cc @@ -57,7 +57,7 @@ range_operator_float::fold_range (frange &r, tree type, return true; if (op1.known_isnan () || op2.known_isnan ()) { - r.set_nan (op1.type ()); + r.set_nan (type); return true; }
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