https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106279
Bug ID: 106279
Summary: reload problem on arm 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 the C testsuite file ./gcc.target/aarch64/vect_unary_1.c, compiled
by an ARM cross compiler, with target arch set to iwmmxt, does this:
$ /home/dcb/raspberrypi/results/bin/arm-linux-gnueabihf-gcc -c -march=iwmmxt
bug827.c
during RTL pass: reload
./gcc.target/aarch64/vect_unary_1.c: In function ‘test2_int_clz_int’:
./gcc.target/aarch64/vect_unary_1.c:15:1: internal compiler error: maximum
number of generated reload insns per insn achieved (90)
15 | }
\
| ^
./gcc.target/aarch64/vect_unary_1.c:161:1: note: in expansion of macro ‘TEST2’
161 | TEST2 (int, clz, int)
| ^~~~~
0xe06010 lra_constraints(bool)
/home/dcb/gcc/trunk.git/gcc/lra-constraints.cc:5126
Similar things happen with target arch set to iwmmxt2.
