https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127648
--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Hongyu Wang <[email protected]>: https://gcc.gnu.org/g:fb0ef8d42a46561e8ec8cb2fa49eebfb56c60a27 commit r17-5243-gfb0ef8d42a46561e8ec8cb2fa49eebfb56c60a27 Author: Sun, Qin <[email protected]> Date: Thu Oct 15 13:54:39 2026 +0800 i386: Fold MINP*/MAXP* builtins only if flag_trapping_math is unset ix86_gimple_fold_builtin folds all-ones-mask MINP*/MAXP* builtins to `a < b ? a : b` when optimizing, which drops {SAE}. Since x86 sets DE for denormal operands, {SAE} should be preserved, so we should enable the folding only if flag_trapping_math is unset. PR target/127648 gcc/ChangeLog: * config/i386/i386.cc (ix86_gimple_fold_builtin): Disable the folding on flag_trapping_math. gcc/testsuite/ChangeLog: * gcc.target/i386/pr127648.c: New test.
