This test was added by git commit 7c5f55675 (svn 231569)
Here's the log message from that commit:
avoid alignment of static variables affecting stack's
Function (or more narrow) scope static variables (as well as others not
placed on the stack) should also not have any effect on the stack
alignment. I noticed the issue first with Linux'es dynamic_pr_debug()
construct using an 8-byte aligned sub-file-scope local variable.
However, the test assumes that a local var will normally not be 64-bit
aligned, causing it to fail on many targets. So the test needs to
pass if the local var *is* normally 64-bit aligned. Done as follows.
test2() is a duplicate of test() without the alignment on the static
vars. Fails on x86_64 -m64 and -m32 if 7c5f55675 is reverted and
passes now for powerpc64-linux. I expect sparc will pass too, so have
reverted Eric's change.
OK to apply?
PR testsuite/68886
* gcc.c-torture/execute/stkalign.c: Revise test.