diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index ef5609cd7694..efee7c1da462 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2017-03-10  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	PR testsuite/79356
+	* gcc.dg/attr-alloc_size-11.c: Don't xfail on aarch64, ia64, mips,
+	powerpc, sparc, or s390x.
+
 2017-03-10  Pat Haugen  <pthaugen@us.ibm.com>
 
 	PR target/79907
diff --git a/gcc/testsuite/gcc.dg/attr-alloc_size-11.c b/gcc/testsuite/gcc.dg/attr-alloc_size-11.c
index fac8b18de614..ccf2c2196c06 100644
--- a/gcc/testsuite/gcc.dg/attr-alloc_size-11.c
+++ b/gcc/testsuite/gcc.dg/attr-alloc_size-11.c
@@ -45,10 +45,10 @@ typedef __SIZE_TYPE__    size_t;
     return CAT (alloc_anti_range_, __LINE__)(n);		\
   } typedef void dummy   /* Require a semicolon.  */
 
-/* The following tests fail because of missing range information.  */
-TEST (signed char, SCHAR_MIN + 2, ALLOC_MAX);   /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" "missing range info for signed char" { xfail *-*-* } } */
-TEST (short, SHRT_MIN + 2, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" "missing range info for short" { xfail *-*-* } } */
-
+/* The following tests fail because of missing range information.  The xfail
+   exclusions are PR79356.  */
+TEST (signed char, SCHAR_MIN + 2, ALLOC_MAX);   /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" "missing range info for signed char" { xfail { ! { aarch64*-*-* ia64-*-* mips*-*-* powerpc*-*-* sparc*-*-* s390x-*-* } } } } */
+TEST (short, SHRT_MIN + 2, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" "missing range info for short" { xfail { ! { aarch64*-*-* ia64-*-* mips*-*-* powerpc*-*-* sparc*-*-* s390x-*-* } } } } */
 TEST (int, INT_MIN + 2, ALLOC_MAX);    /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
 TEST (int, -3, ALLOC_MAX);             /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
 TEST (int, -2, ALLOC_MAX);             /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */