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From: "yann at droneaud dot fr" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/57908] alignment of arrays allocated stack on amd64/x86_64: 16 bytes ?
Date: Tue, 16 Jul 2013 14:39:00 -0000 [thread overview]
Message-ID: <bug-57908-4-8SFShjgGB7@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-57908-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57908
--- Comment #1 from Yann Droneaud <yann at droneaud dot fr> ---
Additionally, for ARM target (ARMv7), it seems GCC align arrays on stack to 4
bytes boundary ... but I don't found the ABI specification that require such
alignment.
kind name address size alignment required
Arrays
object | u8 | 0xf6fff017 | 1 | 1 | 1
object | u8_0 | 0xf6fff00c | 8 | 4 | 1
object | u8_1 | 0xf6fff004 | 7 | 4 | 1
object | u8_2 | 0xf6ffeffc | 6 | 4 | 1
object | u8_3 | 0xf6ffeff4 | 5 | 4 | 1
object | u8_4 | 0xf6ffeff0 | 4 | 16 | 1
object | u8_5 | 0xf6ffefec | 3 | 4 | 1
object | u8_6 | 0xf6ffefe8 | 2 | 8 | 1
object | u8_7 | 0xf6ffefe4 | 1 | 4 | 1
object | u8_8 | 0xf6ffefe3 | 1 | 1 | 1
next prev parent reply other threads:[~2013-07-16 14:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-16 14:35 [Bug c/57908] New: " yann at droneaud dot fr
2013-07-16 14:39 ` yann at droneaud dot fr [this message]
2013-07-16 15:03 ` [Bug c/57908] " pinskia at gcc dot gnu.org
2013-07-16 15:06 ` [Bug target/57908] " pinskia at gcc dot gnu.org
2013-07-16 15:11 ` yann at droneaud dot fr
2013-07-16 15:18 ` yann at droneaud dot fr
2013-07-16 15:20 ` yann at droneaud dot fr
2013-07-16 15:28 ` pinskia at gcc dot gnu.org
2013-07-16 15:32 ` yann at droneaud dot fr
2013-07-16 15:36 ` pinskia at gcc dot gnu.org
2013-07-16 15:56 ` yann at droneaud dot fr
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