https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118939
--- Comment #17 from Richard Earnshaw <rearnsha at gcc dot gnu.org> --- (In reply to Richard Earnshaw from comment #16) > That can't be right. If the frame size has changed, then the frame needs to > be laid out again and any earlier layout assumptions revisited. Here's a concrete example. If the frame size changes, then on a RISC architecture an object may move out of its addressable range. So an intermediate calculation might be necessary and that in turn might involve spilling a register. So the real question is why has the size of the frame changed once it's too late to change the frame layout?
