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| author | Michael Hayes <m.hayes@elec.canterbury.ac.nz> | 1998-11-25 20:51:09 +0000 |
|---|---|---|
| committer | Michael Hayes <m.hayes@gcc.gnu.org> | 1998-11-25 20:51:09 +0000 |
| commit | a70603680e368c79db0f0b3f7ea2bd792f0d9b6d (patch) | |
| tree | 0696cfb08feb8f43843cd461c5d10fbad1798b83 /gcc/loop.c | |
| parent | 959e0a760641de7d2d5090b0b30a6077079530df (diff) | |
| download | gcc-a70603680e368c79db0f0b3f7ea2bd792f0d9b6d.zip gcc-a70603680e368c79db0f0b3f7ea2bd792f0d9b6d.tar.gz gcc-a70603680e368c79db0f0b3f7ea2bd792f0d9b6d.tar.bz2 | |
loop.c (check_dbra_loop): Update JUMP_LABEL field of jump insn when loop reversed.
* loop.c (check_dbra_loop): Update JUMP_LABEL field of jump insn
when loop reversed.
* unroll.c (precondition_loop_p): Return loop_initial_value
for initial_value instead of loop_iteration_var.
From-SVN: r23881
Diffstat (limited to 'gcc/loop.c')
| -rw-r--r-- | gcc/loop.c | 14 |
1 files changed, 8 insertions, 6 deletions
@@ -7107,16 +7107,18 @@ check_dbra_loop (loop_end, insn_count, loop_start) end_sequence (); emit_jump_insn_before (tem, loop_end); + for (tem = PREV_INSN (loop_end); + tem && GET_CODE (tem) != JUMP_INSN; + tem = PREV_INSN (tem)) + ; + + if (tem) + JUMP_LABEL (tem) = XEXP (jump_label, 0); + if (nonneg) { - for (tem = PREV_INSN (loop_end); - tem && GET_CODE (tem) != JUMP_INSN; - tem = PREV_INSN (tem)) - ; if (tem) { - JUMP_LABEL (tem) = XEXP (jump_label, 0); - /* Increment of LABEL_NUSES done above. */ /* Register is now always nonnegative, so add REG_NONNEG note to the branch. */ |