[Bug middle-end/97357] Unable to coalesce ssa_names which are marked as MUST COALESCE.

[qinzhao at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97357

--- Comment #1 from qinzhao at gcc dot gnu.org ---
/home/qinzhao/Install/latest/bin/gcc -v
Using built-in specs.
COLLECT_GCC=/home/qinzhao/Install/latest/bin/gcc
COLLECT_LTO_WRAPPER=/home/qinzhao/Install/latest/libexec/gcc/x86_64-pc-linux-gnu/10.2.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../latest_gcc/configure --prefix=/home/qinzhao/Install/latest
-enable-languages=c,c++,fortran,lto
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 10.2.1 20201009 (GCC)