Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 31 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/pr39804.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/pr39804.c
new file mode 100644
index 000000000..3ff247908
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/pr39804.c
@@ -0,0 +1,31 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target ilp32 } */
+/* { dg-options "-O" } */
+
+typedef unsigned char u8;
+struct __large_struct { unsigned long buf[100]; };
+static inline __attribute__((always_inline)) unsigned long
+__copy_from_user_inatomic(void *to, const void *from, unsigned long n)
+{
+  unsigned long ret = 0;
+  asm volatile("1:	mov""b"" %2,%""b""1\n" "2:\n"
+	       ".section .fixup,\"ax\"\n"
+	       "3:	mov %3,%0\n"
+	       "	xor""b"" %""b""1,%""b""1\n"
+	       "	jmp 2b\n"
+	       ".previous\n"
+	       " .section __ex_table,\"a\"\n"
+	       " " ".balign 4" " " "\n"
+	       " " ".long" " " "1b" "," "3b" "\n"
+	       " .previous\n"
+	       : "=r" (ret), "=q"(*(u8 *)to)
+	       : "m" ((*(struct __large_struct *)(from))), "i" (1), "0" (ret));
+  return ret;
+}
+void romchecksum(const unsigned char *rom, unsigned char c)
+{
+  unsigned char sum;
+  for (sum = 0;
+       !__copy_from_user_inatomic(&(c), ( typeof(c) *)(rom++), sizeof(c));)
+    sum += c;
+}