------- Comment #6 from steven at gcc dot gnu dot org 2009-10-19 15:42 ------- You should not depend on NOTE_INSN_SWITCH_TEXT_SECTIONS. There are other ways to see if a jump goes from one section to another: edge->flags & EDGE_CROSSING (preferred), and REG_CROSSING_JUMP notes (more reliable in post-pass_free_cfg world).
There is no hook to disable the hot-cold partitioning pass right now. For thumb mode, the ARM back end should just set flag_reorder_blocks_and_partition = 0, like Xtensa and MIPS (for MIPS16 mode) already do, for similar reasons. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39247
