[Bug target/89071] AVX vcvtsd2ss lets us avoid PXOR dependency breaking for scalar float<->double and other scalar xmm,xmm instructions

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89071
Bug 89071 depends on bug 87007, which changed state.

Bug 87007 Summary: [8 Regression] 10% slowdown with -march=skylake-avx512
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87007

           What    |Removed                     |Added
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             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED