https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80155
--- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> --- Ok, the 2nd level opportunitues are important. So the 2nd candidate remains for the loop carried dependencies issue(s). Regresses (on x86_64): Running target unix/{,-m32} FAIL: gcc.dg/store-motion-fgcse-sm.c scan-rtl-dump store_motion "STORE_MOTION of f, .* basic blocks, 1 insns deleted, 1 insns created" FAIL: gcc.dg/tree-ssa/loadpre10.c scan-tree-dump-times pre "Eliminated: 1" 1 FAIL: gcc.dg/tree-ssa/loadpre23.c scan-tree-dump-times pre "Eliminated: 1" 1 FAIL: gcc.dg/tree-ssa/loadpre24.c scan-tree-dump-times pre "Eliminated: 1" 1 FAIL: gcc.dg/tree-ssa/loadpre25.c scan-tree-dump-times pre "Eliminated: 1" 1 FAIL: gcc.dg/tree-ssa/loadpre4.c scan-tree-dump-times pre "Eliminated: 1" 1 FAIL: gcc.dg/tree-ssa/loadpre6.c scan-tree-dump-times pre "Eliminated: 1" 1 FAIL: gcc.dg/tree-ssa/pr21417.c scan-tree-dump-times thread4 "FSM jump thread" 1 FAIL: gcc.dg/tree-ssa/pr71347.c scan-tree-dump-not optimized ".* = MEM.*;" FAIL: gcc.dg/tree-ssa/ssa-pre-23.c scan-tree-dump pre "Eliminated: 3" FAIL: gcc.target/i386/pr49781-1.c scan-assembler-not lea[lq]?[ \\t]\\\\((%|)r[a-z0-9]* most of them are expected and looking for the feature we disabled. loadpre6, pr21417.c and pr49781-1.c need a closer look.