From: Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
Date: Wed, 30 Oct 2013 10:54:04 +0000 (+0000)
Subject: re PR target/58854 ("sub sp, fp, #40" hoisted above frame accesses)
X-Git-Tag: releases/gcc-4.9.0~3150
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=55ebf587382e3e1a41b9c1705a74e4a1ed6acae5;p=thirdparty%2Fgcc.git

re PR target/58854 ("sub sp, fp, #40" hoisted above frame accesses)

Fix PR target/58854

2013-10-30  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

	PR target/58854
	* config/arm/arm.c (arm_expand_epilogue_apcs_frame): Emit blockage.

From-SVN: r204203
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e733a50d580b..03c6e220f704 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2013-10-30  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
+
+	PR target/58854
+	* config/arm/arm.c (arm_expand_epilogue_apcs_frame): Emit blockage.
+
 2013-10-30  Ilya Enkovich  <ilya.enkovich@intel.com>
 
 	* tree-core.h (tree_index): Add TI_POINTER_BOUNDS_TYPE.
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 212a4bcc7dcf..23dfc0e5cad8 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -26547,6 +26547,7 @@ arm_expand_epilogue_apcs_frame (bool really_return)
   num_regs = bit_count (saved_regs_mask);
   if ((offsets->outgoing_args != (1 + num_regs)) || cfun->calls_alloca)
     {
+      emit_insn (gen_blockage ());
       /* Unwind the stack to just below the saved registers.  */
       emit_insn (gen_addsi3 (stack_pointer_rtx,
                              hard_frame_pointer_rtx,