From: Sameera Deshpande <sameera.deshpande@linaro.org>
Date: Tue, 30 Oct 2018 10:59:37 +0000 (+0530)
Subject: Fixes bug 87330 by invoking  df_note_add_problem to recompute REG_DEAD and REG_UNUSED... 
X-Git-Tag: basepoints/gcc-10~3442
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=839338295425bb15df21f3f06bf7751dbb4553dd;p=thirdparty%2Fgcc.git

Fixes bug 87330 by invoking  df_note_add_problem to recompute REG_DEAD and REG_UNUSED notes before analysis.

From-SVN: r265618
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f6137d60b1e4..c5eecd0951df 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2018-10-30 Sameera Deshpande <sameera.deshpande@linaro.org
+
+	* gcc/config/aarch64/falkor-tag-collision-avoidance.c
+	(execute_tag_collision_avoidance): Call df_note_add_problem.
+
 2018-10-30  Martin Liska  <mliska@suse.cz>
 
 	* doc/extend.texi: Fix typo in documentation
diff --git a/gcc/config/aarch64/falkor-tag-collision-avoidance.c b/gcc/config/aarch64/falkor-tag-collision-avoidance.c
index 518954f143c0..1e7664b400c8 100644
--- a/gcc/config/aarch64/falkor-tag-collision-avoidance.c
+++ b/gcc/config/aarch64/falkor-tag-collision-avoidance.c
@@ -805,6 +805,7 @@ execute_tag_collision_avoidance ()
   df_set_flags (DF_RD_PRUNE_DEAD_DEFS);
   df_chain_add_problem (DF_UD_CHAIN);
   df_compute_regs_ever_live (true);
+  df_note_add_problem ();
   df_analyze ();
   df_set_flags (DF_DEFER_INSN_RESCAN);