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| author | Jan Hubicka <jh@suse.cz> | 2002-01-12 18:02:43 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2002-01-12 17:02:43 +0000 |
| commit | 9d5608608ce71fbfe4e0fcc247ec166c47ff3f53 (patch) | |
| tree | 61f241d1c36fab939b7f1d377960136cb3f3fff7 /gcc/unroll.c | |
| parent | a426c92e8f26a584a5fe782cca0f8524e10eab46 (diff) | |
| download | gcc-9d5608608ce71fbfe4e0fcc247ec166c47ff3f53.zip gcc-9d5608608ce71fbfe4e0fcc247ec166c47ff3f53.tar.gz gcc-9d5608608ce71fbfe4e0fcc247ec166c47ff3f53.tar.bz2 | |
unroll.c (final_reg_note_copy): Avoid crash on REG_LABEL note referencing outside.
* unroll.c (final_reg_note_copy): Avoid crash on REG_LABEL note
referencing outside.
From-SVN: r48803
Diffstat (limited to 'gcc/unroll.c')
| -rw-r--r-- | gcc/unroll.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/gcc/unroll.c b/gcc/unroll.c index df02b7c..aa1b2c6 100644 --- a/gcc/unroll.c +++ b/gcc/unroll.c @@ -1741,11 +1741,16 @@ final_reg_note_copy (notesp, map) { rtx insn = map->insn_map[INSN_UID (XEXP (note, 0))]; - /* If we failed to remap the note, something is awry. */ + /* If we failed to remap the note, something is awry. + Allow REG_LABEL as it may reference label outside + the unrolled loop. */ if (!insn) - abort (); - - XEXP (note, 0) = insn; + { + if (REG_NOTE_KIND (note) != REG_LABEL) + abort (); + } + else + XEXP (note, 0) = insn; } } |