Hi Suwa-san, On Fri, Sep 19, 2025 at 5:32 AM Takayuki 'January June' Suwa <jjsuwa_sys3...@yahoo.co.jp> wrote: > > This patch moves the process of splitting D[IF]mode constant assignments > into SImode ones from the define_split implementation after reloading to > processing within the "xt_largeconst" target-specific pass. > > This allows these assignments to be processed by the "constantsynth" > optimization, which will be reimplemented later. > > gcc/ChangeLog: > > * config/xtensa/xtensa-protos.h > (xtensa_split_DI_reg_imm): Remove. > * config/xtensa/xtensa.cc (xtensa_split_DI_reg_imm): Remove. > (split_DI_DF_const): New worker function. > (do_largeconst): Add a call to split_DI_DF_const() to the insn > enumeration loop. > * config/xtensa/xtensa.md (movdi): Remove split code when the > source is constant. > (movdi_internal): Add a new constraint pair (a, Y) to the second > of the existing constraint alternatives. > (The auxiliary define_split for movdi_internal): Remove. > --- > gcc/config/xtensa/xtensa-protos.h | 1 - > gcc/config/xtensa/xtensa.cc | 82 +++++++++++++++++++++++-------- > gcc/config/xtensa/xtensa.md | 39 +++------------ > 3 files changed, 67 insertions(+), 55 deletions(-)
This change introduces the following new regressions: +FAIL: gcc.c-torture/execute/builtins/abs-2.c compilation, -Og -g (internal compiler error: in extract_constrain_insn, at recog.cc:2785) +FAIL: gcc.c-torture/execute/builtins/abs-3.c compilation, -Og -g (internal compiler error: in extract_constrain_insn, at recog.cc:2785) +FAIL: gcc.c-torture/execute/builtins/uabs-2.c compilation, -Og -g (internal compiler error: in extract_constrain_insn, at recog.cc:2785) +FAIL: gcc.c-torture/execute/builtins/uabs-3.c compilation, -Og -g (internal compiler error: in extract_constrain_insn, at recog.cc:2785) +FAIL: gcc.c-torture/execute/ieee/20000320-1.c compilation, -Og -g (internal compiler error: in extract_constrain_insn, at recog.cc:2785) +FAIL: gcc.c-torture/execute/ieee/pr30704.c compilation, -Og -g (internal compiler error: in extract_constrain_insn, at recog.cc:2785) +FAIL: gcc.c-torture/execute/ieee/rbug.c compilation, -Og -g (internal compiler error: in extract_constrain_insn, at recog.cc:2785) -- Thanks. -- Max
