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| author | Jakub Jelinek <jakub@redhat.com> | 2010-01-29 13:14:47 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2010-01-29 13:14:47 +0100 |
| commit | c23cd1d60fad597684f39e56134ff918a9bab466 (patch) | |
| tree | 099818190b187b032b4dfe2e1e0061d89697cfca /gcc/df-scan.c | |
| parent | 38bc76da3d0f12058f0fba2ee1d3dff17abb2dc7 (diff) | |
| download | gcc-c23cd1d60fad597684f39e56134ff918a9bab466.zip gcc-c23cd1d60fad597684f39e56134ff918a9bab466.tar.gz gcc-c23cd1d60fad597684f39e56134ff918a9bab466.tar.bz2 | |
re PR rtl-optimization/42889 ("-fcompare-debug failure (length)" with "-O1 -fgcse")
PR rtl-optimization/42889
* df.h (df_set_bb_dirty_nonlr): New prototype.
* df-core.c (df_set_bb_dirty_nonlr): New function.
* df-scan.c (df_insn_rescan): Call it instead of
df_set_bb_dirty for DEBUG_INSNs.
* gcc.dg/pr42889.c: New test.
From-SVN: r156344
Diffstat (limited to 'gcc/df-scan.c')
| -rw-r--r-- | gcc/df-scan.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/df-scan.c b/gcc/df-scan.c index 6c8c42b..c3a3dc7 100644 --- a/gcc/df-scan.c +++ b/gcc/df-scan.c @@ -1301,7 +1301,10 @@ df_insn_rescan (rtx insn) } df_refs_add_to_chains (&collection_rec, bb, insn); - df_set_bb_dirty (bb); + if (DEBUG_INSN_P (insn)) + df_set_bb_dirty_nonlr (bb); + else + df_set_bb_dirty (bb); VEC_free (df_ref, stack, collection_rec.def_vec); VEC_free (df_ref, stack, collection_rec.use_vec); |