From: Jiong Wang <jiong.wang@arm.com>
Date: Tue, 30 Sep 2014 08:44:14 +0000 (+0000)
Subject: Should not sink instructions which may cause trap
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2cfc4ade7a49eca3b1f1a545765c85bb92019869;p=gcc.git

Should not sink instructions which may cause trap

2014-09-30  Jiong Wang  <jiong.wang@arm.com>

  gcc/
    * shrink-wrap.c (move_insn_for_shrink_wrap): Check "can_throw_internal"
    before sinking insn.

From-SVN: r215709
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d224b0fd3bf..9e78a93f569 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2014-09-30  Jiong Wang  <jiong.wang@arm.com>
+
+	* shrink-wrap.c (move_insn_for_shrink_wrap): Check "can_throw_internal"
+	before sinking insn.
+
 2014-09-30  David Sherwood  <david.sherwood@arm.com>
 
 	* ira-int.h (ira_allocno): Add "wmode" field.
diff --git a/gcc/shrink-wrap.c b/gcc/shrink-wrap.c
index bd4813c82ae..b1ff8a255f8 100644
--- a/gcc/shrink-wrap.c
+++ b/gcc/shrink-wrap.c
@@ -189,6 +189,9 @@ move_insn_for_shrink_wrap (basic_block bb, rtx_insn *insn,
       unsigned int nonconstobj_num = 0;
       rtx src_inner = NULL_RTX;
 
+      if (can_throw_internal (insn))
+	return false;
+
       subrtx_var_iterator::array_type array;
       FOR_EACH_SUBRTX_VAR (iter, array, src, ALL)
 	{