https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105218
Bug ID: 105218
Summary: [12 regression] bootstrap build error in mpc in stage3
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
This happens during stage 3 and started overnight. I am still looking for
where it started.
libtool: compile: /home/seurer/gcc/git/build/gcc-test/./prev-gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/./prev-gcc/
-B/home/seurer/gcc/git/install/gcc-test/powerpc64le-unknown-linux-gnu/bin/
-B/home/seurer/gcc/git/install/gcc-test/powerpc64le-unknown-linux-gnu/bin/
-B/home/seurer/gcc/git/install/gcc-test/powerpc64le-unknown-linux-gnu/lib/
-isystem
/home/seurer/gcc/git/install/gcc-test/powerpc64le-unknown-linux-gnu/include
-isystem
/home/seurer/gcc/git/install/gcc-test/powerpc64le-unknown-linux-gnu/sys-include
-fchecking=1 -DHAVE_CONFIG_H -I. -I/home/seurer/gcc/git/gcc-test/mpc/src -I..
-I/home/seurer/gcc/git/build/gcc-test/./gmp
-I/home/seurer/gcc/git/gcc-test/mpfr/src -g -O2 -fchecking=1 -MT mul.lo -MD -MP
-MF .deps/mul.Tpo -c /home/seurer/gcc/git/gcc-test/mpc/src/mul.c -o mul.o
/home/seurer/gcc/git/gcc-test/mpc/src/mul.c: In function 'mpc_mul_karatsuba':
/home/seurer/gcc/git/gcc-test/mpc/src/mul.c:204:1: error: definition in block
13 does not dominate use in block 14
204 | mpc_mul_karatsuba (mpc_ptr rop, mpc_srcptr op1, mpc_srcptr op2,
mpc_rnd_t rnd)
| ^~~~~~~~~~~~~~~~~
for SSA_NAME: rnd_re_274 in statement:
# DEBUG D#5 => rnd_re_274 != 3 ? rnd_re_274 : 2
during GIMPLE pass: phiopt
/home/seurer/gcc/git/gcc-test/mpc/src/mul.c:204:1: internal compiler error:
verify_ssa failed
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
See <https://gcc.gnu.org/bugs/> for instructions.
make[5]: *** [Makefile:584: mul.lo] Error 1
