Regressions on native/master at commit r17-1737 vs commit r17-1734 on Linux/x86_64

[Haochen Jiang via Gcc-regression]

Regressions on master at commit r17-1737 vs commit r17-1734 on Linux/x86_64
New failures:

New passes:
FAIL: gcc.dg/spaceship_mixed_variants.c scan-tree-dump-times optimized 
"\\.SPACESHIP \\([^,]+, [^,]+, -1\\)" 64