gcc-4.6.0: Bring in patches from FSF 4.6 branch

This brings in new patches from 4.6 release branch
updates the comment section of existing branch to not
contain patch numbers.

Tested build on qemu for arm ppc mips x86 and x86_64

Signed-off-by: Khem Raj <raj.khem@gmail.com>

1 files changed, 81 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0277-2011-05-18-Richard-Guenther-rguenther-suse.de.patch b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0277-2011-05-18-Richard-Guenther-rguenther-suse.de.patch
new file mode 100644
index 000000000..faa5a0523
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0277-2011-05-18-Richard-Guenther-rguenther-suse.de.patch
@@ -0,0 +1,81 @@
+From 0394622853ff7c35417625979782f19fa3682122 Mon Sep 17 00:00:00 2001
+From: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Wed, 18 May 2011 13:33:53 +0000
+Subject: [PATCH] 2011-05-18  Richard Guenther  <rguenther@suse.de>
+
+	PR tree-optimization/49018
+	* gimple.c (gimple_has_side_effects): Volatile asms have side-effects.
+	* tree-ssa-ifcombine.c (bb_no_side_effects_p): Use
+	gimple_has_side_effects.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@173862 138bc75d-0d04-0410-961f-82ee72b054a4
+
+index 9a94f06..233a4f5 100644
+--- a/gcc/gimple.c
++++ b/gcc/gimple.c
+@@ -2286,6 +2286,10 @@ gimple_has_side_effects (const_gimple s)
+   if (gimple_has_volatile_ops (s))
+     return true;
+ 
++  if (gimple_code (s) == GIMPLE_ASM
++      && gimple_asm_volatile_p (s))
++    return true;
++
+   if (is_gimple_call (s))
+     {
+       unsigned nargs = gimple_call_num_args (s);
+@@ -2299,7 +2303,7 @@ gimple_has_side_effects (const_gimple s)
+       if (gimple_call_lhs (s)
+           && TREE_SIDE_EFFECTS (gimple_call_lhs (s)))
+ 	{
+-	  gcc_assert (gimple_has_volatile_ops (s));
++	  gcc_checking_assert (gimple_has_volatile_ops (s));
+ 	  return true;
+ 	}
+ 
+@@ -2309,7 +2313,7 @@ gimple_has_side_effects (const_gimple s)
+       for (i = 0; i < nargs; i++)
+         if (TREE_SIDE_EFFECTS (gimple_call_arg (s, i)))
+ 	  {
+-	    gcc_assert (gimple_has_volatile_ops (s));
++	    gcc_checking_assert (gimple_has_volatile_ops (s));
+ 	    return true;
+ 	  }
+ 
+@@ -2318,11 +2322,14 @@ gimple_has_side_effects (const_gimple s)
+   else
+     {
+       for (i = 0; i < gimple_num_ops (s); i++)
+-	if (TREE_SIDE_EFFECTS (gimple_op (s, i)))
+-	  {
+-	    gcc_assert (gimple_has_volatile_ops (s));
+-	    return true;
+-	  }
++	{
++	  tree op = gimple_op (s, i);
++	  if (op && TREE_SIDE_EFFECTS (op))
++	    {
++	      gcc_checking_assert (gimple_has_volatile_ops (s));
++	      return true;
++	    }
++	}
+     }
+ 
+   return false;
+diff --git a/gcc/tree-ssa-ifcombine.c b/gcc/tree-ssa-ifcombine.c
+index bc551b2..e23bb76 100644
+--- a/gcc/tree-ssa-ifcombine.c
++++ b/gcc/tree-ssa-ifcombine.c
+@@ -107,7 +107,7 @@ bb_no_side_effects_p (basic_block bb)
+     {
+       gimple stmt = gsi_stmt (gsi);
+ 
+-      if (gimple_has_volatile_ops (stmt)
++      if (gimple_has_side_effects (stmt)
+ 	  || gimple_vuse (stmt))
+ 	return false;
+     }
+-- 
+1.7.0.4
+