[Bug rtl-optimization/94002] [9/10 Regression] ICE: in decompose, at rtl.h:2279 with -O -fPIC -fno-tree-dce -fno-tree-reassoc
cvs-commit at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Mar 3 09:44:00 GMT 2020
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94002
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:
https://gcc.gnu.org/g:0ab503d34f2a8c22262ceefea6c882ae2ff75230
commit r10-6991-g0ab503d34f2a8c22262ceefea6c882ae2ff75230
Author: Jakub Jelinek <jakub@redhat.com>
Date: Tue Mar 3 10:42:34 2020 +0100
explow: Fix ICE caused by plus_constant [PR94002]
The following testcase ICEs in cross to riscv64-linux. The problem is
that we have a DImode integral constant (that doesn't fit into SImode),
which is pushed into a constant pool and later access just the first half
of
it using a MEM. When plus_constant is called on such a MEM, if the
constant
has mode, we verify the mode, but if it doesn't, we don't and ICE later on
when we think the CONST_INT is a valid SImode constant.
2020-03-03 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/94002
* explow.c (plus_constant): Punt if cst has VOIDmode and
get_pool_mode is different from mode.
* gcc.dg/pr94002.c: New test.
More information about the Gcc-bugs
mailing list