PR 43839

[pf3gnuchains/gcc-fork.git] / gcc / reorg.c

diff --git a/gcc/reorg.c b/gcc/reorg.c
index b1de4be..c649dfc 100644 (file)
--- a/gcc/reorg.c
+++ b/gcc/reorg.c
@@ -3253,13 +3253,10 @@ delete_prior_computation (rtx note, rtx insn)
 
 /* Delete INSN and recursively delete insns that compute values used only
    by INSN.  This uses the REG_DEAD notes computed during flow analysis.
-   If we are running before flow.c, we need do nothing since flow.c will
-   delete dead code.  We also can't know if the registers being used are
-   dead or not at this point.
 
-   Otherwise, look at all our REG_DEAD notes.  If a previous insn does
-   nothing other than set a register that dies in this insn, we can delete
-   that insn as well.
+   Look at all our REG_DEAD notes.  If a previous insn does nothing other
+   than set a register that dies in this insn, we can delete that insn
+   as well.
 
    On machines with CC0, if CC0 is used in this insn, we may be able to
    delete the insn that set it.  */