Regressions on master at commit r15-6777 vs commit r15-6769 on Linux/x86_64 New failures:
New passes: FAIL: gcc.dg/field-merge-16.c scan-tree-dump-times ifcombine "optimizing" 6 FAIL: gcc.dg/lto/save-temps c_lto_save-temps_0.o-c_lto_save-temps_0.o link, -O -flto -save-temps
