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Re: PATCH: PR testsuite/39907: Aligned access to unaligned address

From: Uros Bizjak <ubizjak at gmail dot com>
To: "H.J. Lu" <hjl dot tools at gmail dot com>
Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Mon, 18 May 2009 18:48:19 +0200
Subject: Re: PATCH: PR testsuite/39907: Aligned access to unaligned address
References: <6dc9ffc80905180939x60325734i6be2db329d166585@mail.gmail.com>

H.J. Lu wrote:

gcc.target/x86_64/abi/asm-support.S doesn't preserve stack alignment
for
extern void (*callthis)(void);
void
foo ()
{
  (*callthis) ();
}
which should generate
foo:
	subq	$8, %rsp
	call	*callthis(%rip)
	addq	$8, %rsp
	ret
Tested on Linux/x86-64. OK for trunk/4.4/4.3?

2009-05-18 H.J. Lu <hongjiu.lu@intel.com>
	PR testsuite/39907
	* gcc.target/x86_64/abi/asm-support.S (snapshot_ret): Preserve
	stack alignment.

OK everywhere.

Thanks,
Uros.

References:
- PATCH: PR testsuite/39907: Aligned access to unaligned address
  - From: H.J. Lu

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