https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101507
Bug ID: 101507
Summary: ice for gcc.dg/Wstringop-overflow-69.c with
-march=iwmmxt
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
For gcc testsuite file ./gcc.dg/Wstringop-overflow-69.c, it compiles happily
with march=armv8.6-a and many other settings, but isn't happy with
-march=iwmmxt
$ /home/dcb/raspberrypi/results/bin/arm-linux-gnueabihf-gcc -c -w -march=iwmmxt
./gcc.dg/Wstringop-overflow-69.c
during RTL pass: reload
./gcc.dg/Wstringop-overflow-69.c: In function ‘warn_vec_func’:
./gcc.dg/Wstringop-overflow-69.c:84:1: internal compiler error: maximum number
of generated reload insns per insn achieved (90)
84 | }
| ^
0xd7d3aa lra_constraints(bool)
/home/dcb/gcc/trunk.git/gcc/lra-constraints.c:5091
This looks to me like some internal buffer overflow.
