From df113ce7de77eba567568d47c0d0e3d5ebd98559 Mon Sep 17 00:00:00 2001
From: Steve Ellcey <sellcey@imgtec.com>
Date: Thu, 28 Jan 2016 22:28:04 +0000
Subject: [PATCH] re PR target/68400 (ICE in change_address_1, at
 emit-rtl.c:2125)

	PR target/68400
	* gcc.target/mips/mips.exp (mips_option_groups): Add stack-protector.
	* gcc.target/mips/pr68400.c: New test.

From-SVN: r232954
---
 gcc/testsuite/ChangeLog                 |  6 ++++++
 gcc/testsuite/gcc.target/mips/mips.exp  |  1 +
 gcc/testsuite/gcc.target/mips/pr68400.c | 28 ++++++++++++++++++++++++++++
 3 files changed, 35 insertions(+)
 create mode 100644 gcc/testsuite/gcc.target/mips/pr68400.c

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 0957d2f..fc1e4ee 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2016-01-28  Steve Ellcey  <sellcey@imgtec.com>
+
+	PR target/68400
+	* gcc.target/mips/mips.exp (mips_option_groups): Add stack-protector.
+	* gcc.target/mips/pr68400.c: New test.
+
 2016-01-28  Martin Sebor  <msebor@redhat.com>
 
 	PR target/17381
diff --git a/gcc/testsuite/gcc.target/mips/mips.exp b/gcc/testsuite/gcc.target/mips/mips.exp
index f191331..ff9c99a 100644
--- a/gcc/testsuite/gcc.target/mips/mips.exp
+++ b/gcc/testsuite/gcc.target/mips/mips.exp
@@ -257,6 +257,7 @@ set mips_option_groups {
     lsa "(|!)HAS_LSA"
     section_start "-Wl,--section-start=.*"
     frame-header "-mframe-header-opt|-mno-frame-header-opt"
+    stack-protector "-fstack-protector"
 }
 
 for { set option 0 } { $option < 32 } { incr option } {
diff --git a/gcc/testsuite/gcc.target/mips/pr68400.c b/gcc/testsuite/gcc.target/mips/pr68400.c
new file mode 100644
index 0000000..1099568
--- /dev/null
+++ b/gcc/testsuite/gcc.target/mips/pr68400.c
@@ -0,0 +1,28 @@
+/* PR target/pr68400
+   This was triggering an ICE in change_address_1 when compiled with -Os.  */
+
+/* { dg-do compile } */
+/* { dg-options "-fstack-protector -mips16" } */
+
+typedef struct s {
+ unsigned long long d;
+ long long t;
+} p;
+
+int sh(int x, unsigned char *buf)
+{
+ p *uhdr = (p *)buf;
+ unsigned int i = 0;
+ uhdr->d = ((uhdr->d & 0xff00000000000000LL) >> 56)
+            | ((uhdr->d & 0x0000ff0000000000LL) >> 24)
+            | ((uhdr->d & 0x00000000ff000000LL) << 8)
+            | ((uhdr->d & 0x00000000000000ffLL) << 56);
+ uhdr->t = ((uhdr->t & 0xff00000000000000LL) >> 56)
+                | ((uhdr->t & 0x0000ff0000000000LL) >> 24)
+                | ((uhdr->t & 0x000000ff00000000LL) >> 8)
+                | ((uhdr->t & 0x00000000ff000000LL) << 8)
+                | ((uhdr->t & 0x000000000000ff00LL) << 40)
+                | ((uhdr->t & 0x00000000000000ffLL) << 56);
+ i += 4;
+ if (x < i) return 0; else return 1;
+}
-- 
2.7.4