https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110587
Martin Jambor <jamborm at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |sayle at gcc dot gnu.org --- Comment #7 from Martin Jambor <jamborm at gcc dot gnu.org> --- Oops sorry, indeed, the much bigger regression is because of: commit 8911879415d6c2a7baad88235554a912887a1c5c Author: Roger Sayle <ro...@nextmovesoftware.com> Date: Fri Jul 14 18:10:05 2023 +0100 i386: Improved insv of DImode/DFmode {high,low}parts into TImode. This is the next piece towards a fix for (the x86_64 ABI issues affecting) PR 88873. This patch generalizes the recent tweak to ix86_expand_move for setting the highpart of a TImode reg from a DImode source using *insvti_highpart_1, to handle both DImode and DFmode sources, and also use the recently added *insvti_lowpart_1 for setting the lowpart. Although this is another intermediate step (not yet a fix), towards enabling *insvti and *concat* patterns to be candidates for TImode STV (by using V2DI/V2DF instructions), it already improves things a little. [...]