[Bug target/125614] [17 Regression] ICE on valid code at -O{2,3} with "-fno-dce -fno-tree-fre" on x86_64-linux-gnu: in extract_insn, at recog.cc:2894
cvs-commit at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Jun 16 05:54:49 GMT 2026
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125614
--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@gcc.gnu.org>:
https://gcc.gnu.org/g:ed5d77a4e802288acfaff71f1a0fb6a54a7c6a35
commit r17-1581-ged5d77a4e802288acfaff71f1a0fb6a54a7c6a35
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Tue Jun 16 06:51:29 2026 +0800
x86: Replace gen_rtx_SUBREG with gen_lowpart
Replace gen_rtx_SUBREG with gen_lowpart when generating E_HImode RTX on
destination of
(subreg:V2QI (reg:HI 111 [ vect__6.14_46 ]) 0)
with CONST_INT source.
gcc/
PR target/125614
* config/i386/i386-features.cc (replace_vector_const): Replace
gen_rtx_SUBREG with gen_lowpart.
gcc/testsuite/
PR target/125614
* gcc.target/i386/pr125614.c: New file.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
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