From: Jakub Jelinek <jakub@redhat.com>
Date: Mon, 8 Aug 2016 13:58:46 +0000 (+0200)
Subject: re PR rtl-optimization/72821 (RTL check: expected elt 2 type 'B', have '0' (rtx barri... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5435398d80bca0b21cfb6717155b39fb65d38085;p=gcc.git

re PR rtl-optimization/72821 (RTL check: expected elt 2 type 'B', have '0' (rtx barrier) in BLOCK_FOR_INSN, at rtl.h:1424)

	PR rtl-optimization/72821
	* lra-spills.c (regno_in_use_p): Don't use BLOCK_FOR_INSN on barriers,
	just return false for them.

From-SVN: r239241
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 66e4049915b..1e9e56cae70 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2016-08-08  Jakub Jelinek  <jakub@redhat.com>
+
+	PR rtl-optimization/72821
+	* lra-spills.c (regno_in_use_p): Don't use BLOCK_FOR_INSN on barriers,
+	just return false for them.
+
 2016-08-08  Alan Modra  <amodra@gmail.com>
 
 	PR target/72771
diff --git a/gcc/lra-spills.c b/gcc/lra-spills.c
index d7529ea371f..768ae82f772 100644
--- a/gcc/lra-spills.c
+++ b/gcc/lra-spills.c
@@ -697,9 +697,10 @@ regno_in_use_p (rtx_insn *insn, unsigned int regno)
   int i, arg_regno;
   basic_block bb = BLOCK_FOR_INSN (insn);
 
-  while ((insn = next_nondebug_insn (insn)) != NULL_RTX
-	 && bb == BLOCK_FOR_INSN (insn))
+  while ((insn = next_nondebug_insn (insn)) != NULL_RTX)
     {
+      if (BARRIER_P (insn) || bb != BLOCK_FOR_INSN (insn))
+	return false;
       if (! INSN_P (insn))
 	continue;
       if (GET_CODE (PATTERN (insn)) == USE