[Bug target/105504] Fails to break dependency for vcvtss2sd xmm, xmm, mem

[amonakov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105504

--- Comment #5 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
The strange xmm0 spill issue may affect more code, so I reported an isolated
testcase: PR 105513 (regression vs. gcc-8, the complete testcase in this PR
also does not spill with gcc-8).