re PR testsuite/41288 (gcc.target/x86_64/abi/test_struct_returning.c regressions…

re PR testsuite/41288 (gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64)

	PR testsuite/41288
	* gcc.target/x86_64/abi/asm-support-darwin.s (snapshot_ret): Preserve
	stack alignment.

From-SVN: r151855

gcc/testsuite/ChangeLog

+2009-09-18  Jack Howarth  <howarth@bromo.med.uc.edu>
+
+	PR testsuite/41288
+	* gcc.target/x86_64/abi/asm-support-darwin.s (snapshot_ret): Preserve
+	stack alignment.
+
 2009-09-17  Andrew Pinski  <pinskia@gcc.gnu.org>
 
 	PR c++/39365

gcc/testsuite/gcc.target/x86_64/abi/asm-support-darwin.s

@@ -42,7 +42,9 @@ _snapshot:
 .globl _snapshot_ret
 _snapshot_ret:
 	movq	%rdi, _rdi(%rip)
+	subq	$8, %rsp
 	call	*_callthis(%rip)
+	addq	$8, %rsp
 	movq	%rax, _rax(%rip)
 	movq	%rdx, _rdx(%rip)
 	movdqu	%xmm0, _xmm_regs+0(%rip)