From: "Philippe Mathieu-Daudé" <philmd@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Richard Henderson" <richard.henderson@linaro.org>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>
Subject: [PATCH 0/4] qemu/bswap: Let cpu_to_endian() functions handle constant expressions
Date: Thu, 17 Sep 2020 18:31:02 +0200 [thread overview]
Message-ID: <20200917163106.49351-1-philmd@redhat.com> (raw)
Stefan Hajnoczi suggested we can use __builtin_constant_p()
in the cpu_to_ENDIAN()/ENDIAN_to_cpu() functions to check if
expression is constant, and if so use the const_ENDIAN() macros.
This series modifies cpu_to_ENDIAN() to use const_ENDIAN() when
possible.
Philippe Mathieu-Daudé (4):
qemu/bswap: Move const_le() definitions around
qemu/bswap: add const_be16() and const_be32()
qemu/bswap: Add const_le64() and const_be64()
qemu/bswap: Let cpu_to_endian() functions handle constant expressions
include/qemu/bswap.h | 75 +++++++++++++++++++++++++++++++-------------
1 file changed, 54 insertions(+), 21 deletions(-)
--
2.26.2
next reply other threads:[~2020-09-17 16:33 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-17 16:31 Philippe Mathieu-Daudé [this message]
2020-09-17 16:31 ` [PATCH 1/4] qemu/bswap: Move const_le() definitions around Philippe Mathieu-Daudé
2020-09-17 16:31 ` [PATCH 2/4] qemu/bswap: add const_be16() and const_be32() Philippe Mathieu-Daudé
2020-09-17 16:31 ` [PATCH 3/4] qemu/bswap: Add const_le64() and const_be64() Philippe Mathieu-Daudé
2020-09-17 21:19 ` Richard Henderson
2020-09-17 16:31 ` [PATCH 4/4] qemu/bswap: Let cpu_to_endian() functions handle constant expressions Philippe Mathieu-Daudé
2020-09-17 21:29 ` Richard Henderson
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