diff options
Diffstat (limited to 'gcc/final.c')
| -rw-r--r-- | gcc/final.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/gcc/final.c b/gcc/final.c index 2968174..9816624 100644 --- a/gcc/final.c +++ b/gcc/final.c @@ -1978,30 +1978,6 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED, } #ifdef HAVE_cc0 CC_STATUS_INIT; - /* If this label is reached from only one place, set the condition - codes from the instruction just before the branch. */ - - /* Disabled because some insns set cc_status in the C output code - and NOTICE_UPDATE_CC alone can set incorrect status. */ - if (0 /* optimize && LABEL_NUSES (insn) == 1*/) - { - rtx jump = LABEL_REFS (insn); - rtx barrier = prev_nonnote_insn (insn); - rtx prev; - /* If the LABEL_REFS field of this label has been set to point - at a branch, the predecessor of the branch is a regular - insn, and that branch is the only way to reach this label, - set the condition codes based on the branch and its - predecessor. */ - if (barrier && BARRIER_P (barrier) - && jump && JUMP_P (jump) - && (prev = prev_nonnote_insn (jump)) - && NONJUMP_INSN_P (prev)) - { - NOTICE_UPDATE_CC (PATTERN (prev), prev); - NOTICE_UPDATE_CC (PATTERN (jump), jump); - } - } #endif if (LABEL_NAME (insn)) |