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| author | Richard Kenner <kenner@gcc.gnu.org> | 1995-09-15 18:24:09 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1995-09-15 18:24:09 -0400 |
| commit | 970c9acebff0668e05d591ba34184f68b32c21e8 (patch) | |
| tree | 9ebb96c4c9a12bfad9d01234232da4739230e936 /gcc | |
| parent | 7a9b75b671b25d03d7afe4c116f0f1b8d89ca90a (diff) | |
| download | gcc-970c9acebff0668e05d591ba34184f68b32c21e8.zip gcc-970c9acebff0668e05d591ba34184f68b32c21e8.tar.gz gcc-970c9acebff0668e05d591ba34184f68b32c21e8.tar.bz2 | |
(insert): Set cse_jumps_altered when inserting a LABEL_REF.
From-SVN: r10366
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/cse.c | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -1287,6 +1287,14 @@ insert (x, classp, hash, mode) SET_HARD_REG_BIT (hard_regs_in_table, i); } + /* If X is a label, show we are altering jumps. We don't KNOW + we are, but we might be putting it into a insn which would + then need a new REG_LABEL note. Be conservative and say + we alter jumps here; we usually will in this case anyway. */ + if (GET_CODE (x) == LABEL_REF + || (GET_CODE (x) == CONST && GET_CODE (XEXP (x, 0)) == PLUS + && GET_CODE (XEXP (XEXP (x, 0), 0)) == LABEL_REF)) + cse_jumps_altered = 1; /* Put an element for X into the right hash bucket. */ |