On IBM Z we enforce function alignment to 8 bytes. Hence we get an
error instead of a warning when trying to specify smaller alignments.
gcc/testsuite/ChangeLog:
2018-04-06 Andreas Krebbel <kreb...@linux.vnet.ibm.com>
* c-c++-common/Wattributes.c: Disable warning for s390* target and
check for an error instead.
* gcc.dg/Wattributes-6.c: Likewise.
---
gcc/testsuite/c-c++-common/Wattributes.c | 3 ++-
gcc/testsuite/gcc.dg/Wattributes-6.c | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/gcc/testsuite/c-c++-common/Wattributes.c
b/gcc/testsuite/c-c++-common/Wattributes.c
index 902bcb6..40a2985 100644
--- a/gcc/testsuite/c-c++-common/Wattributes.c
+++ b/gcc/testsuite/c-c++-common/Wattributes.c
@@ -401,7 +401,8 @@ inline int ATTR ((warn_unused_result))
finline_hot_noret_align (int); /* { dg-warning "ignoring attribute
.warn_unused_result. because it conflicts with attribute .noreturn." } */
inline int ATTR ((aligned (4)))
-finline_hot_noret_align (int); /* { dg-warning "ignoring attribute .aligned
\\(4\\). because it conflicts with attribute .aligned \\(8\\)." } */
+ finline_hot_noret_align (int); /* { dg-warning "ignoring attribute .aligned
\\(4\\). because it conflicts with attribute .aligned \\(8\\)." "" { target { !
s390*-*-* } } } */
+/* { dg-error "alignment for '.*finline_hot_noret_align.*' must be at least 8"
"" { target s390*-*-* } .-1 } */
inline int ATTR ((aligned (8)))
finline_hot_noret_align (int);
diff --git a/gcc/testsuite/gcc.dg/Wattributes-6.c
b/gcc/testsuite/gcc.dg/Wattributes-6.c
index 902bcb6..a260d01 100644
--- a/gcc/testsuite/gcc.dg/Wattributes-6.c
+++ b/gcc/testsuite/gcc.dg/Wattributes-6.c
@@ -401,7 +401,8 @@ inline int ATTR ((warn_unused_result))
finline_hot_noret_align (int); /* { dg-warning "ignoring attribute
.warn_unused_result. because it conflicts with attribute .noreturn." } */
inline int ATTR ((aligned (4)))
-finline_hot_noret_align (int); /* { dg-warning "ignoring attribute .aligned
\\(4\\). because it conflicts with attribute .aligned \\(8\\)." } */
+ finline_hot_noret_align (int); /* { dg-warning "ignoring attribute .aligned
\\(4\\). because it conflicts with attribute .aligned \\(8\\)." "" { target { !
s390*-*-* } } } */
+/* { dg-error "alignment for 'finline_hot_noret_align' must be at least 8" ""
{ target s390*-*-* } .-1 } */
inline int ATTR ((aligned (8)))
finline_hot_noret_align (int);
--
2.9.1
