From: Revital Eres <revital.eres@linaro.org>
Date: Wed, 11 May 2011 07:40:26 +0000 (+0000)
Subject: Skip DEBUG_INSNs while recognizing doloop
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ca7566250ff8874b9bd02fb1215d0ee2ba43eef7;p=gcc.git

Skip DEBUG_INSNs while recognizing doloop

From-SVN: r173647
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1ea9d00f1ad..60e7c764557 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2011-05-11  Revital Eres  <revital.eres@linaro.org>
+
+	* modulo-sched.c (doloop_register_get): Ignore DEBUG_INSNs while
+	recognizing doloop.
+
 2011-05-11  Revital Eres  <revital.eres@linaro.org>
 
 	* loop-doloop.c (doloop_condition_get): Use prev_nondebug_insn
diff --git a/gcc/modulo-sched.c b/gcc/modulo-sched.c
index 091c0059e5c..0f525afb676 100644
--- a/gcc/modulo-sched.c
+++ b/gcc/modulo-sched.c
@@ -310,10 +310,10 @@ doloop_register_get (rtx head ATTRIBUTE_UNUSED, rtx tail ATTRIBUTE_UNUSED)
      either a single (parallel) branch-on-count or a (non-parallel)
      branch immediately preceded by a single (decrement) insn.  */
   first_insn_not_to_check = (GET_CODE (PATTERN (tail)) == PARALLEL ? tail
-                             : PREV_INSN (tail));
+                             : prev_nondebug_insn (tail));
 
   for (insn = head; insn != first_insn_not_to_check; insn = NEXT_INSN (insn))
-    if (reg_mentioned_p (reg, insn))
+    if (reg_mentioned_p (reg, insn) && !DEBUG_INSN_P (insn))
       {
         if (dump_file)
         {