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| author | Roman Zippel <zippel@linux-m68k.org> | 2004-09-02 23:55:09 +0000 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2004-09-02 16:55:09 -0700 |
| commit | b54567e24cb7bbc74b3e084cf0b7964c378f6511 (patch) | |
| tree | bdf6f59108893b04239fa020b9262e283a07cae7 /gcc/combine.c | |
| parent | 5906d0133520f77a2220aa61abe2ad428ac09e8f (diff) | |
| download | gcc-b54567e24cb7bbc74b3e084cf0b7964c378f6511.zip gcc-b54567e24cb7bbc74b3e084cf0b7964c378f6511.tar.gz gcc-b54567e24cb7bbc74b3e084cf0b7964c378f6511.tar.bz2 | |
* combine.c (distribute_notes): Don't add REG_LABEL to jump insn.
From-SVN: r87002
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 4bd1555..be1a08c 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -11839,21 +11839,25 @@ distribute_notes (rtx notes, rtx from_insn, rtx i3, rtx i2) place = i2; } - /* Don't attach REG_LABEL note to a JUMP_INSN which has - JUMP_LABEL already. Instead, decrement LABEL_NUSES. */ - if (place && JUMP_P (place) && JUMP_LABEL (place)) + /* Don't attach REG_LABEL note to a JUMP_INSN. Add + a JUMP_LABEL instead or decrement LABEL_NUSES. */ + if (place && JUMP_P (place)) { - if (JUMP_LABEL (place) != XEXP (note, 0)) + if (!JUMP_LABEL (place)) + JUMP_LABEL (place) = XEXP (note, 0); + else if (JUMP_LABEL (place) != XEXP (note, 0)) abort (); - if (LABEL_P (JUMP_LABEL (place))) + else if (LABEL_P (JUMP_LABEL (place))) LABEL_NUSES (JUMP_LABEL (place))--; place = 0; } - if (place2 && JUMP_P (place2) && JUMP_LABEL (place2)) + if (place2 && JUMP_P (place2)) { - if (JUMP_LABEL (place2) != XEXP (note, 0)) + if (!JUMP_LABEL (place2)) + JUMP_LABEL (place2) = XEXP (note, 0); + else if (JUMP_LABEL (place2) != XEXP (note, 0)) abort (); - if (LABEL_P (JUMP_LABEL (place2))) + else if (LABEL_P (JUMP_LABEL (place2))) LABEL_NUSES (JUMP_LABEL (place2))--; place2 = 0; } |