gcc: Add upstream fix for gcc bug 58595

Fix for internal compiler error hit when building lttng-tools_4.2.0:

 kernel-consumer.c:324:1: internal compiler error: in gen_movsi, at
   config/arm/arm.md:5539

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 134 insertions, 1 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-4.8.inc b/meta/recipes-devtools/gcc/gcc-4.8.inc
index f5e583d766..855ec26aef 100644
--- a/meta/recipes-devtools/gcc/gcc-4.8.inc
+++ b/meta/recipes-devtools/gcc/gcc-4.8.inc
@@ -69,7 +69,8 @@ SRC_URI = "${GNU_MIRROR}/gcc/gcc-${PV}/gcc-${PV}.tar.bz2 \
 	   file://0046-libatomic-deptracking.patch \
 	   file://0047-repomembug.patch \
 	   file://0048-PR58854_fix_arm_apcs_epilogue.patch \
-	   file://0049-Enable-SPE-AltiVec-generation-on-powepc-linux-target.patch \ 
+	   file://0049-Enable-SPE-AltiVec-generation-on-powepc-linux-target.patch \
+	   file://0050-PR-target-58595.patch \
 	  "
 SRC_URI[md5sum] = "a3d7d63b9cb6b6ea049469a0c4a43c9d"
 SRC_URI[sha256sum] = "09dc2276c73424bbbfda1dbddc62bbbf900c9f185acf7f3e1d773ce2d7e3cdc8"
diff --git a/meta/recipes-devtools/gcc/gcc-4.8/0050-PR-target-58595.patch b/meta/recipes-devtools/gcc/gcc-4.8/0050-PR-target-58595.patch
new file mode 100644
index 0000000000..4470596527
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-4.8/0050-PR-target-58595.patch
@@ -0,0 +1,132 @@
+Backport fix for PR target/58595
+
+From: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Thu, 6 Mar 2014 12:07:07 +0000
+Subject: [PATCH] 	PR target/58595 	* config/arm/arm.c
+ (arm_tls_symbol_p): Remove. 	(arm_legitimize_address): Call
+ legitimize_tls_address for any 	arm_tls_referenced_p expression,
+ handle constant addend.  Call it 	before testing for !TARGET_ARM. 
+ (thumb_legitimize_address): Don't handle arm_tls_symbol_p here.
+
+	* gcc.dg/tls/pr58595.c: New test.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208380 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Index: gcc-4.8.2/gcc/ChangeLog
+===================================================================
+--- gcc-4.8.2.orig/gcc/ChangeLog
++++ gcc-4.8.2/gcc/ChangeLog
+@@ -1,3 +1,13 @@
++2014-03-06  Jakub Jelinek  <jakub@redhat.com>
++	    Meador Inge  <meadori@codesourcery.com>
++
++	PR target/58595
++	* config/arm/arm.c (arm_tls_symbol_p): Remove.
++	(arm_legitimize_address): Call legitimize_tls_address for any
++	arm_tls_referenced_p expression, handle constant addend.  Call it
++	before testing for !TARGET_ARM.
++	(thumb_legitimize_address): Don't handle arm_tls_symbol_p here.
++
+ 2013-10-16  Release Manager
+ 
+ 	* GCC 4.8.2 released.
+Index: gcc-4.8.2/gcc/config/arm/arm.c
+===================================================================
+--- gcc-4.8.2.orig/gcc/config/arm/arm.c
++++ gcc-4.8.2/gcc/config/arm/arm.c
+@@ -230,7 +230,6 @@ static tree arm_gimplify_va_arg_expr (tr
+ static void arm_option_override (void);
+ static unsigned HOST_WIDE_INT arm_shift_truncation_mask (enum machine_mode);
+ static bool arm_cannot_copy_insn_p (rtx);
+-static bool arm_tls_symbol_p (rtx x);
+ static int arm_issue_rate (void);
+ static void arm_output_dwarf_dtprel (FILE *, int, rtx) ATTRIBUTE_UNUSED;
+ static bool arm_output_addr_const_extra (FILE *, rtx);
+@@ -6573,6 +6572,32 @@ legitimize_tls_address (rtx x, rtx reg)
+ rtx
+ arm_legitimize_address (rtx x, rtx orig_x, enum machine_mode mode)
+ {
++  if (arm_tls_referenced_p (x))
++    {
++      rtx addend = NULL;
++
++      if (GET_CODE (x) == CONST && GET_CODE (XEXP (x, 0)) == PLUS)
++	{
++	  addend = XEXP (XEXP (x, 0), 1);
++	  x = XEXP (XEXP (x, 0), 0);
++	}
++
++      if (GET_CODE (x) != SYMBOL_REF)
++	return x;
++
++      gcc_assert (SYMBOL_REF_TLS_MODEL (x) != 0);
++
++      x = legitimize_tls_address (x, NULL_RTX);
++
++      if (addend)
++	{
++	  x = gen_rtx_PLUS (SImode, x, addend);
++	  orig_x = x;
++	}
++      else
++	return x;
++    }
++
+   if (!TARGET_ARM)
+     {
+       /* TODO: legitimize_address for Thumb2.  */
+@@ -6581,9 +6606,6 @@ arm_legitimize_address (rtx x, rtx orig_
+       return thumb_legitimize_address (x, orig_x, mode);
+     }
+ 
+-  if (arm_tls_symbol_p (x))
+-    return legitimize_tls_address (x, NULL_RTX);
+-
+   if (GET_CODE (x) == PLUS)
+     {
+       rtx xop0 = XEXP (x, 0);
+@@ -6695,9 +6717,6 @@ arm_legitimize_address (rtx x, rtx orig_
+ rtx
+ thumb_legitimize_address (rtx x, rtx orig_x, enum machine_mode mode)
+ {
+-  if (arm_tls_symbol_p (x))
+-    return legitimize_tls_address (x, NULL_RTX);
+-
+   if (GET_CODE (x) == PLUS
+       && CONST_INT_P (XEXP (x, 1))
+       && (INTVAL (XEXP (x, 1)) >= 32 * GET_MODE_SIZE (mode)
+@@ -6988,20 +7007,6 @@ thumb_legitimize_reload_address (rtx *x_
+ 
+ /* Test for various thread-local symbols.  */
+ 
+-/* Return TRUE if X is a thread-local symbol.  */
+-
+-static bool
+-arm_tls_symbol_p (rtx x)
+-{
+-  if (! TARGET_HAVE_TLS)
+-    return false;
+-
+-  if (GET_CODE (x) != SYMBOL_REF)
+-    return false;
+-
+-  return SYMBOL_REF_TLS_MODEL (x) != 0;
+-}
+-
+ /* Helper for arm_tls_referenced_p.  */
+ 
+ static int
+Index: gcc-4.8.2/gcc/testsuite/ChangeLog
+===================================================================
+--- gcc-4.8.2.orig/gcc/testsuite/ChangeLog
++++ gcc-4.8.2/gcc/testsuite/ChangeLog
+@@ -1,3 +1,8 @@
++2014-03-06  Jakub Jelinek  <jakub@redhat.com>
++
++	PR target/58595
++	* gcc.dg/tls/pr58595.c: New test.
++
+ 2013-10-16  Release Manager
+ 
+ 	* GCC 4.8.2 released.