[Bug c/123365] [13/14 Regression] ICE: in emit_move_insn, at expr.cc with inline asm array-to-register constraint
cvs-commit at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Sun Mar 15 06:09:44 GMT 2026
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123365
--- Comment #7 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-14 branch has been updated by Jakub Jelinek
<jakub@gcc.gnu.org>:
https://gcc.gnu.org/g:e7c09bf93b9df722c6ac2d235e056a8d44a0e31c
commit r14-12412-ge7c09bf93b9df722c6ac2d235e056a8d44a0e31c
Author: Jakub Jelinek <jakub@redhat.com>
Date: Wed Feb 18 17:46:38 2026 +0100
c: Call relayout_decl in build_compound_literal when completing type
[PR123365]
Most other spots inthe C FE which change type of some VAR_DECL
through complete_array_type call relayout_decl to fix up DECL_MODE
etc., but build_compound_literal strangely does not.
It has layout_decl (decl, 0); call later on but I think that is
quite useless given that already the build_decl call earlier
calls that and so the second layout_decl probably does nothing
most of the time.
On the following testcase, the compound literal VAR_DECL has
BLKmode from the time it had incomplete array type and isn't
changed to DImode that the completed type has and asm stmt
expansion is unhappy about that.
Fixed thusly.
2026-02-18 Jakub Jelinek <jakub@redhat.com>
PR c/123365
* c-decl.cc (build_compound_literal): Call relayout_decl
after completing the type.
* gcc.c-torture/compile/pr123365.c: New test.
(cherry picked from commit 319db4667fbed5180a1ecc687ff8556d2447760a)
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