[Bug c/53037] warn_if_not_aligned(X)

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53037

--- Comment #37 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Andreas Schwab from comment #35)
> On m68k:
> 
> FAIL: gcc.dg/pr53037-1.c  (test for warnings, line 42)
> FAIL: gcc.dg/pr53037-1.c  (test for warnings, line 75)
> FAIL: gcc.dg/pr53037-1.c (test for excess errors)
> Excess errors:
> /daten/aranym/gcc/gcc-20170821/gcc/testsuite/gcc.dg/pr53037-1.c:42:1:
> warning: alignment 2 of 'struct foo5' is less than 16 [-Wif-not-aligned]
> /daten/aranym/gcc/gcc-20170821/gcc/testsuite/gcc.dg/pr53037-1.c:75:1:
> warning: alignment 2 of 'union bar3' is less than 16 [-Wif-not-aligned]
> 
> FAIL: g++.dg/pr53037-1.C  -std=gnu++98  (test for warnings, line 38)
> FAIL: g++.dg/pr53037-1.C  -std=gnu++98  (test for warnings, line 71)
> FAIL: g++.dg/pr53037-1.C  -std=gnu++98 (test for excess errors)
> Excess errors:
> /daten/aranym/gcc/gcc-20170821/gcc/testsuite/g++.dg/pr53037-1.C:38:8:
> warning: alignment 2 of 'foo5' is less than 16 [-Wif-not-aligned]
> /daten/aranym/gcc/gcc-20170821/gcc/testsuite/g++.dg/pr53037-1.C:71:7:
> warning: alignment 2 of 'bar3' is less than 16 [-Wif-not-aligned]

A patch is posted at

https://gcc.gnu.org/ml/gcc-patches/2017-08/msg01193.html