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| author | Richard Stallman <rms@gnu.org> | 1993-01-23 22:16:52 +0000 |
|---|---|---|
| committer | Richard Stallman <rms@gnu.org> | 1993-01-23 22:16:52 +0000 |
| commit | 27212ac6c1c9f029725b1decc75e0443bddf018e (patch) | |
| tree | 564cd460744bf69c1d0823258cbe528d2e7f370b /gcc | |
| parent | 93193ab5ee81eed3321d21730d50c6b03e56d68c (diff) | |
| download | gcc-27212ac6c1c9f029725b1decc75e0443bddf018e.zip gcc-27212ac6c1c9f029725b1decc75e0443bddf018e.tar.gz gcc-27212ac6c1c9f029725b1decc75e0443bddf018e.tar.bz2 | |
(find_basic_blocks): Don't mark labels in nonlocal_label_list
that were deleted due to having no references.
From-SVN: r3310
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/flow.c | 7 |
1 files changed, 5 insertions, 2 deletions
@@ -538,8 +538,11 @@ find_basic_blocks (f, nonlocal_label_list) { rtx x; for (x = nonlocal_label_list; x; x = XEXP (x, 1)) - mark_label_ref (gen_rtx (LABEL_REF, VOIDmode, XEXP (x, 0)), - insn, 0); + /* Don't try marking labels that + were deleted as unreferenced. */ + if (GET_CODE (XEXP (x, 0)) == CODE_LABEL) + mark_label_ref (gen_rtx (LABEL_REF, VOIDmode, XEXP (x, 0)), + insn, 0); /* ??? This could be made smarter: in some cases it's possible to tell that certain calls will not do a nonlocal goto. |