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-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/df-scan.c6
2 files changed, 9 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c19ae95..c3115b1 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2009-11-18 Alexandre Oliva <aoliva@redhat.com>
+
+ * df-scan.c (df_ref_create): Don't mark BB as dirty on debug insns.
+ (df_ref_remove): Likewise.
+
2009-11-17 Jan Hubicka <jh@suse.cz>
* ipa-struct-reorg.c (update_cgraph_with_malloc_call): Fix profile
diff --git a/gcc/df-scan.c b/gcc/df-scan.c
index 101234b..c12c00e 100644
--- a/gcc/df-scan.c
+++ b/gcc/df-scan.c
@@ -829,7 +829,8 @@ df_ref_create (rtx reg, rtx *loc, rtx insn,
/* By adding the ref directly, df_insn_rescan my not find any
differences even though the block will have changed. So we need
to mark the block dirty ourselves. */
- df_set_bb_dirty (bb);
+ if (!DEBUG_INSN_P (DF_REF_INSN (ref)))
+ df_set_bb_dirty (bb);
return ref;
}
@@ -1027,7 +1028,8 @@ df_ref_remove (df_ref ref)
/* By deleting the ref directly, df_insn_rescan my not find any
differences even though the block will have changed. So we need
to mark the block dirty ourselves. */
- df_set_bb_dirty (DF_REF_BB (ref));
+ if (!DEBUG_INSN_P (DF_REF_INSN (ref)))
+ df_set_bb_dirty (DF_REF_BB (ref));
df_reg_chain_unlink (ref);
}