1 files changed, 52 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0366-gcc.patch b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0366-gcc.patch
new file mode 100644
index 0000000000..5b3f4bd89a
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0366-gcc.patch
@@ -0,0 +1,52 @@
+From c3806c1e1e0c9895d17d729a96179f71f124857e Mon Sep 17 00:00:00 2001
+From: rsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Sun, 29 May 2011 17:48:14 +0000
+Subject: [PATCH] gcc/
+ 	* config/mips/mips.c (mips_cfun_call_saved_reg_p): Handle global
+ 	registers.
+
+gcc/testsuite/
+	* gcc.target/mips/reg-var-1.c: New test.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@174405 138bc75d-0d04-0410-961f-82ee72b054a4
+
+index 027fc2d..8069a0b 100644
+--- a/gcc/config/mips/mips.c
++++ b/gcc/config/mips/mips.c
+@@ -9053,6 +9053,11 @@ mips_interrupt_extra_call_saved_reg_p (unsigned int regno)
+ static bool
+ mips_cfun_call_saved_reg_p (unsigned int regno)
+ {
++  /* If the user makes an ordinarily-call-saved register global,
++     that register is no longer call-saved.  */
++  if (global_regs[regno])
++    return false;
++
+   /* Interrupt handlers need to save extra registers.  */
+   if (cfun->machine->interrupt_handler_p
+       && mips_interrupt_extra_call_saved_reg_p (regno))
+new file mode 100644
+index 0000000..d8b8118
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/mips/reg-var-1.c
+@@ -0,0 +1,16 @@
++/* { dg-do run } */
++register int g asm ("$18");
++
++void __attribute__((noinline))
++test (void)
++{
++  g = g + 1;
++}
++
++int
++main (void)
++{
++  g = 2;
++  test ();
++  return g != 3;
++}
+-- 
+1.7.0.4
+