diff options
Diffstat (limited to 'gcc/cfglayout.c')
| -rw-r--r-- | gcc/cfglayout.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/gcc/cfglayout.c b/gcc/cfglayout.c index e883af4..f7d4d10 100644 --- a/gcc/cfglayout.c +++ b/gcc/cfglayout.c @@ -1177,7 +1177,20 @@ duplicate_insn_chain (rtx from, rtx to) moved far from original jump. */ if (GET_CODE (PATTERN (insn)) == ADDR_VEC || GET_CODE (PATTERN (insn)) == ADDR_DIFF_VEC) - break; + { + /* Avoid copying following barrier as well if any + (and debug insns in between). */ + rtx next; + + for (next = NEXT_INSN (insn); + next != NEXT_INSN (to); + next = NEXT_INSN (next)) + if (!DEBUG_INSN_P (next)) + break; + if (next != NEXT_INSN (to) && BARRIER_P (next)) + insn = next; + break; + } copy = emit_copy_of_insn_after (insn, get_last_insn ()); maybe_copy_prologue_epilogue_insn (insn, copy); break; |